how can adding. doubles help you multiply by 2 give an example

Answers

Answer 1

Since you add a number x amount of times by itself when you multiply it by x, we have, for example, 3*2=3+3=6. In addition, 3*3=3+3+3=9 and 3*4=3+3+3+3 (4 times)=12.

Related Questions

how do i translate this?

Answers

To translate the points, move each point making up the triangle 3 units up the y-axis and 4 units to the left of the x-axis as the directions say.

PLEASE HELP WITH MY MATH!

What is the value of the expression? −2^6 − (6)^2

Enter your answer in the box.

Answers

(-2)^6 - 6^2
= 64 - 36
= 28

-2^6-(6)^2= -100. Hope this helps have a great day. :)

I need a quick good conclusion thank you

Answers

You'll notice that 36's prime factors had 2 even, and none other had an even number of even prime factors. Therefore, if you have an even number of even prime factors, your square root will be rational given the data

Find the quotient: 18,198 / 27 518 608 674 689

Answers

Final answer:

The quotient of dividing 18,198 by 27 is 674, as 27 times 674 equals 18,198, leaving no remainder.

Explanation:

The student has asked to find the quotient of the division of 18,198 by 27. To find the quotient, one would typically use long division. After setting up the long division, it turns out that 27 can be divided into 18,198 exactly 674 times, because 27 times 674 equals 18,198.

To solve this, you would write 18,198 as the dividend and 27 as the divisor. Then you would see how many times 27 can go into 181 (the first three digits of 18,198), which is 6 (since 27 x 6 = 162). You write the 6 above the third digit of 18,198, subtract 162 from 181, and bring down the next digit from the dividend, which is 9, making 198. Now you find how many times 27 can go into 198, which is 7 times exactly since 27 x 7 gives you 189. Subtract 189 from 198, and the result is 9, bringing down the last digit 8 to get 98. Finally, you divide 27 into 98 which is 3 times (since 27 x 3 = 81), subtract 81 from 98 to get 17. Since there are no more digits to bring down, we are left with a remainder of 17. Therefore, the quotient is 673 and the remainder is 17.

draw a rectangle on the grid below with an area of 1575 square units and a side of 45 units

Answers

1575/45 = 35
35 x 45 =1575

The width of a rectangle is 3 inches less than twice the length. If the length of the rectangle is represented by L, write an algebraic expression to represent the width.

Answers

2L - 3 = Width
so if Width = w
w = 2L - 3

The distance between bases on a baseball diamond (a perfect square) is 90 feet and the pitchers mound is one-half the distance between home and second base. If Burt Hooton throws a slider at 87 mi/hr, how many seconds will it take for the ball to reach the plate?

Answer in units of s.

Please help me! Thank you!

Answers

First you have to use right triangles to find out how far away from the plate, then just use multiplication to find the final answer.

Answer choices:

A and T
WCR and TRA
<-----> WC <----> CR
<-----> WC <----> WT

Answers

A and T are points. On their own, they cannot define a line. So we can rule out choice A

WCR and TRA are angles. For any triple the points do not fall on the same straight line. So we cannot define any lines here. This crosses off choice B

Choice C is the answer because WC does define a line. We only need two points to form a line. Similarly CR does the same job. We draw a line marker with two arrows at each end to be placed over the letters to indicate "line".

Choice D is similar to choice D; however, it is not the answer because WT is the same line as WC. In other words, WC = WT. We haven't named a new line at all. We're simply repeating ourselves.

is 1/5 bigger than 20 and 20.6?

Answers

Answer: "No"; and "no".

"1/5" is smaller than "20" and" "20.6".
________________________________
Note: "1/5" = "0.8"; which is MUCH smaller than "20" and "20.6".
______________________________________________________

21=cd+e solve for d ( please help!!)

Answers

[tex]21=cd+e \ \ \ \to \ \ \ 21-e=cd \ \ \ \to \ \ \ d= \cfrac{21-e}{c} [/tex]

Here's the answer in more detail.

Write a story that could describe the expression:

75x - 20

Answers

If John wants to buy 75 packs of gum but doesn't know how much pieces of gum are in each pack as well as that he has to give 20 pieces to his friend Dan, how many pieces of gum does he have left?

Since he adds x pieces of gum for each pack, his total gum is 75x. Next, since he gives 20 pieces to his friend, we have to subtract 20 from that

If I make 75 dollars in a day and then use 20 dollars for gas then how much money will I have left over

Jim makes the following conjecture: other than 1, there are no numbers less than 100 that are perfect squares and perfect cubes. what is a counterexample that proves his conjecture false?

Answers

The number 64 is a counterexample to Jim's conjecture because it is the square of 8 and the cube of 4. A fast way to solve this problem is to list out the perfect cubes that are less than 100 and check if any of them are also perfect squares. A perfect square is a number which can be written as another number multiplied by itself, and a perfect cube is one which can be written as a number multiplied by itself twice. The perfect cubes less than 100 are as follows: 1*1*1 = 1 2*2*2 = 8 3*3*3 = 27 4*4*4 = 64 Now we can calculate perfect squares until we find one in this list 1*1 = 1 2*2 = 4 3*3 = 9 4*4 = 16 5*5 = 25 6*6 = 36 7*7 = 49 8*8 = 64 We see that 64 is in the list of perfect squares and perfect cubes, so this is a counterexample to Jim's conjecture.

Two cars traveled equal distances in different amounts of time. Car A traveled the distance in 2.4 h, and Car B traveled the distance in 4 h. Car A traveled 22 mph faster than Car B. How fast did Car A travel? (The formula R⋅T=D , where R is the rate of speed, T is the time, and D is the distance can be used.) Enter your answer in the box.

Answers

Let the distance be D miles
Car A:- D = 2.4R and for Car B:- D = 4(R- 22)

therefore 2.4R = 4(R-22)

4R - 88 = 2.4R
1.6R = 88
R = 55mph Answer

Rate of speed is rate of change of distance with respect to time, If Car A traveled the distance in 2.4 h, and Car B traveled the distance in 4 h.

Car A traveled 22 mph faster than Car B. 55mph fast car A travel.

What is Rate of speed?

Rate of speed is rate of change of distance with respect to time.

Let the distance be D miles

Car A:- D = 2.4R and

for Car B:- D = 4(R- 22)

therefore 2.4R = 4(R-22)

4R - 88 = 2.4R

4R-2.4R=88

1.6R = 88

R = 55mph Answer

Therefore car A travels 55mph faster than car B.

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The temperature in Jonestown and Cooperville was the same at 1:00. By 2:00, the temperature in Jonestown dropped 10 degrees, and the temperature in cooperville dropped 6 degrees. By 3:00 the temperature in Jonestown dropped 8 more degrees, and the temperature in coopervi dropped 2 more degrees.

Answers

Final answer:

The subject of this question is Physics as it involves the concept of temperature and the change in temperature over time.

Explanation:

The subject of this question is Physics as it involves the concept of temperature and the change in temperature over time.

Step 1: At 1:00, the temperature in Jonestown and Cooperville was the same.

Step 2: By 2:00, the temperature in Jonestown dropped 10 degrees and the temperature in Cooperville dropped 6 degrees.

Step 3: By 3:00, the temperature in Jonestown dropped an additional 8 degrees and the temperature in Cooperville dropped an additional 2 degrees.

Therefore, the subject of this question is Physics and the grade is High School.

Write in the form y=mx+b, the equation of the line that has:

A) a slope of 6 and passes through (1,5)

B) a slope of 5/6 and passes through (-12, 3)

Answers

5= 6+b
-1=b
Y=6x-1
3=-10+b
13=b
Y=5/6x+13

what is the product? (3a^2b^7)(5a^3b^8)

Answers

15a^5 b^15 Is The Answer

Decrease £248 by 30%

Answers

Thank you for your question!

248 * 0.30 = 74.4
248 - 74.4 = 173.6

Hope this helps!

Okay this equation really says is what is 30% of 248.

So, lets convert 30% to a fraction, 3/10 which is easier to work with.

All you have to do now is get out a calculator and do 248 *3/10 (or .3) and get 74.4

So subtract 74.4 and get

173.6

What mathematical operation "attaches" r and t in this formula:

d = rt

AND

What operation undoes the operation that "attaches" r and t?

Answers

Multiplication.
d=rt is d= r x t or d=r*t or d equals r times t.
The opposite of multiplication is division so the operation that would undo it would be division

The multiplication operation "attaches" r and t in this formula and division will undo the operation.

What is the arithmetic operator?

Arithmetic operators are four basic mathematical operations in which summation, subtraction, division, and multiplication involve.,

Summation = addition of two or more numbers or variable

For example = 2 + 8 + 9

Subtraction = Minus of any two or more numbers with each other called subtraction.

For example = 4 - 8

Division = divide any two numbers or variable called division.

For example 4/8

Multiplication = to multiply any two or more numbers or variables called multiplication.

For example 5 × 7.

Given the expression,

d = rt

Now rt is the multiplication of r and t it that r × t = rt so by multiplication its attaches.

Now in order to separate both.

Divide by r or t ⇒ d/r = t or d/t = r

Hence "The multiplication operation "attaches" r and t in this formula and division will undo the operation".

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Jinni opened a bank account. She deposited $87.60 into her account every month for 10 months. She used $25.60 every month to pay for music classes. After 10 months, she used 1 over 4 of the total money left in her account to go to a summer camp for musicians. What is the total amount of money Jinni spent to go to the summer camp? $64.00 $88.00 $155.00 $620.00.Please help I am on a time limit!!!!

Answers

You want to multiply 87.60 and 25.60 by 10. 87.60x10=876. 25.60x10=256.876-256=620. Then you will take 1/4 of 620 to get the answer 155 is what she paid for lessons.

Answer:

$155.00

Step-by-step explanation:

Jinni deposited $87.60 every month for 10 months, this represents a total of

[tex]\$87.60(10)=\$876[/tex]

But, she used $25.60 every month to pay for music classes, the total money spent is

[tex]\$25.60(10)=\$256[/tex]

So, she has in her bank account

[tex]\$876 - \$256 = \$620[/tex]

Then, she uses 1/4 of the total money left ($620) to go to a summer camp, which is

[tex]\frac{1}{4}(\$620)=\$155[/tex]

Therefore, she spent $155 to go to the summer camp. So, the right answer is the third option.

A 20-minute TV program consists of two commercials, each 1 3/4 minutes long, and three equal‐length entertainment segments. How long is each entertainment segment?

Answers

Final answer:

To find the length of each of the three entertainment segments in a 20-minute TV program with commercials, we subtract the total time of the commercials from the total time of the program and divide the remaining time by the number of segments. This gives a length of 5.5 minutes for each segment.

Explanation:

To determine the length of each entertainment segment in this 20-minute TV program, we first need to subtract the total length of the commercials from the overall program length. The two commercials, each 1 3/4 minutes long, add up to 3 1/2 minutes.

20 minutes (total program length) - 3.5 minutes (total commercial time) = 16.5 minutes left for the entertainment segments.

As there are three equal‐length entertainment segments, we simply divide the remaining time by the number of segments:

16.5 minutes / 3 = 5.5 minutes.

Therefore, each entertainment segment is 5.5 minutes long.

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Final answer:

Each entertainment segment is 5.5 minutes long.

Explanation:

To find the length of each entertainment segment, we need to subtract the total time of the commercials from the total duration of the TV program.

The total time of the commercials is given as 1 3/4 minutes each, which is equivalent to 7/4 minutes each.

So, the total time of the commercials is 2 * 7/4 = 14/4 = 3.5 minutes.

Since we know that the TV program is 20 minutes long, the total time of the entertainment segments can be found by subtracting the time of the commercials from the total duration: 20 - 3.5 = 16.5 minutes.

Since there are three equal-length entertainment segments, we can divide the total time of the entertainment segments by 3: 16.5 / 3 = 5.5 minutes.

Therefore, each entertainment segment is 5.5 minutes long.

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bananas are $0.59/pound, how much will 25 bananas cost?

Answers

The answer would be $14.75. You would have to do .59 times 25 bananas and you would would get $14.75.

25 lbs at 0.59 per lb = 25 * 0.59 = $ 14.75 <==

help me with question 2 plss

Answers

i cannot do this because it wont let me look at the attachment i am sorry

[tex]\frac{p^{3 \cdot 4}}{q^4} \times \frac{9q^{4\cdot2}}{p^{3\cdot2}} = \frac{p^{12}}{q^4} \times \frac{9q^{8}}{p^{6}} = {p^{12-6}} \times 9q^{8-4}}} = 9p^6q^4[/tex]

Mr. and Mrs. Delgado each own an equal number of shares of a stock.Mr. Delgado sells one-third of his shares for $2700. What was the value of Mr. and Mrs.Gelgados stock before the sale?

Answers

3x2700=Just Mr. Delgado's shares' value= $8100

Since they own an equal number of shares, their total value of stock before the sale is two times what each of them has separately.

$8100 x 2=value of their stock= $16200

Diana has z gerbils. Jackie has 4 times as many gerbils as Diana. If w stands for the number of gerbils Jackie has, express w in terms of z, and state the independent and e dependent variables in the equation.

Answers

Gerbils Diana has = z

Gerbils Jackie has = 4z = w

Hence, w = 4z

Independent Variable is a variable that stands alone and isn't changed by the other variables you are trying to measure.

Hence, the independent variable is z here.

Dependent Variable is something that depends on other factors.

Hence, the dependent variable is w here.

Dina =z gerbils
Jacki =4z
W = 4z
Independent:z
Dependeny:w

what's 867,000→ to the nearest ten

Answers

867000 to the nearest ten is 867000 is your answer

hope this helps

Which of the following would be equivalent to 11 to the 8th power over 11 to the 3rd power?

A)11 to the 7th power over 11 to the 7th power
B)11 ⋅ 114
11 to the 0 power over 11 to the 5th power
110

Answers

none of the above. 11^8/11^3 is 11^5 since you will just subtract exponents. The numerical value is 161051
although you should have an option that either is 11^5 or equals 11^5 like 11^15/11^10 for example
the third answer is almost correct, but it would have to be 11^5/11^0

Answer:

[tex]11 .11^4[/tex]

Step-by-step explanation:

Given phrase,

11 to the 8th power over 11 to the 3rd power

[tex]\implies \frac{11^8}{11^3}[/tex]

[tex]=11^{8-3}[/tex] [tex](\because \frac{a^m}{a^n}=a^{m-n})[/tex]

[tex]=11^5[/tex]

Since,

[tex]11.11^4[/tex]

[tex]=11^{1+4}[/tex]

[tex]=11^5[/tex]

Hence, the equivalent expression to 11 to the 8th power over 11 to the 3rd power is,

[tex]11.11^4[/tex]

Hank bought 2.4 pounds of apples. Each pound cost $1.89. How much did hank spend on the apples?

Answers

Hank spent $4.536 in all on apples!

1 lb = $1.84
2.4 lbs = x amount of $

multiply 2.4 by 1.84 and you should get the correct answer. key word should, I haven't done problems like these in forever, so check it to make sure

simplify (a+3)(a-2) I need to show my work...thanks!

Answers

(a+3)(a-2)
a^2-2a+3a-6
a^2+1a-6

^ = the exponent so if i have a^2 that is a squared. a^3 is a cubed.
a^2 - 2a + 3a - 6 because a*a = a^2, a*-2 = -2a, 3*a = 3a, and 3*-2 = -6.
a^2 + a - 6 because of combining like terms.

The quotient of 4/7 is a decimal number. How many digits in the quotient are overlined?

Answers

6 digits are overlined because the repeating numbers after the decimal is 571428.

she is right 6 digits

A company has the pay scales below , with the percent of employees receiving that pay listed. Find the best value to represent an average salary at this company. ( round to the nearest dollar ) Job Salary Percent of Employees Entry $30,000 60% Expert $40,000 38% CEO $125,000 2%

Answers

The given table is the following:

Job Salary % of Employees
-------- ------------ ----------------------
Entry $30,000 60%
Expert $40,000 38%
CEO $125,000 2%

Let n = total number of employees.

Entry:
Number = 0.6n
Pay total = 0.6n*(30,000) = $18,000n

Expert:
Number = 0.38n
Pay total = 0.38n*(40,000) = $15,200n

CEO:
Number = 0.02n
Pay total = 0.02n*(125,000) = $2,500n

Total pay = 18,000n + 15,200n + 2,500n = $35,700n
Average salary = 35,700/n = $35,700

Answer: $35,700

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