help.‼️ its rlly hard

Answer:   88 Feet Per Second

Step-by-step explanation:  

Firstly you need to know 3 things:  

> 60 mph = 60 Miles Per Hour  

> 1 Hour = 60 mins = 60*60 = 3600 seconds  

> 1 Mile = 5280 feet  

Next you can change the miles to feet and hours to seconds.  

60 mi/ 1 hour = 60*5280/ 3600 = 316800ft/ 3600sec  

Now time to reduce that big fraction! (Or in this case just divide by 3600 sec)  

316800ft/ 3600sec  

= 88ft/1sec  

= 88 Feet Per Second  

Hope that helps!

Answer:

C. 9960

Step-by-step explanation:

Let's read this in a more proper way.

The number of boys in Mr. Watson's class is 2/3 the number of girls. So:

[tex]18 * \frac{2}{3} = 12\\18 + 12 = 30[/tex]

There are 30 students in Mr. Watson's class.

For this ratio to be in true in the second problem (306 boys, 459 girls), 306 must be 2/3 of 459.

[tex]459 * \frac{2}{3} = 306[/tex]

The ratio holds true for the second problem.

30 students,

Yes it is possible, because 306 is 2/3 of 459.

Answer:

There are 2,730 ways that 1st, 2nd and 3rd place can be determined in the race

Step-by-step explanation:

There are 15 (number of runners) possibilities to determine the 1st place

There are 14 possibilities (number of runners - 1) to determine the 2nd place

There are 13 possibilities (number of runners - 2) to determine the 3rd place

Number of ways that 1st, 2nd and 3rd place can be determined = 15 * 14 * 13

Number of ways that 1st, 2nd and 3rd place can be determined = 2,730

Answer:

It is a sequence of integers cubed.

1^3 = 1

2^3 =8

3^3 = 27

4^3 =64

5^3 = 125

6^3 = 216

Step-by-step explanation:

Answer:

26/3 or if you want it simplified its 8 2/3 im not sure if you need it in decimals so i thought id write it anyway   8.666667

Step-by-step explanation:

1) Conversion a mixed number to a improper fraction

2) Conversion the other mixed number to a improper fraction      

3)  Multiply both numerators and denominators. Result fraction keep to lowest possible denominator

The value of [tex]2 \frac{3}{5} * 3 \frac{1}{3}[/tex] = 263 = 8 23 ≅ 8.6666667.

Given:

[tex]2 \frac{3}{5} * 3 \frac{1}{3}[/tex]

1) Conversion of a mixed number to an improper fraction.

2) Conversion of the other mixed number to an improper fraction.    

3)  Multiply both numerators and denominators. The result fraction keeps to the lowest possible denominator.

Therefore, the value of [tex]2 \frac{3}{5} * 3 \frac{1}{3}[/tex] is 8.6666667.

To learn more about improper fraction

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Answer:

C.  [tex]\sqrt{\frac{25}{36} }[/tex]

Step-by-step explanation:

This comes from the property of exponents which says for any numbers [tex]a[/tex], [tex]b[/tex], and  [tex]c[/tex],

[tex](a*b)^c=a^c*b^c[/tex]

Since square roots are just exponents of [tex]\frac{1}{2}[/tex] power ([tex]\sqrt{x} =x^\frac{1}{2}[/tex]), and [tex]\frac{1}{x} =x^{-1}[/tex], we have

[tex]\frac{\sqrt{25}}{\sqrt{36} }=25^{\frac{1}{2} }*36^{-\frac{1}{2} }=25^{\frac{1}{2} }*(36^{-1})^{\frac{1}{2} }=(25*(36^{-1})})^{\frac{1}{2}[/tex]

[tex]=\sqrt{25*36^{-1}} =\sqrt{\frac{25}{36} }[/tex]

Which is choice C.

Answer:

the guy is correct

Step-by-step explanation:

i got it right on apex

Answer:

Emily

Step-by-step explanation:

I made all the runners times into minutes. So Adam ran 450 feet in one minute (9 × 60), Jake ran 696 feet in 1 minute (If you divide 383 by 33 you get 11.6, then you multiply 11.6 by 30 to get 348 and then 348 × 2 is 696), Ron ran 528 in a minute (1 mile = 5280 feet and 600 seconds is 10 minutes), and Emily ran 755 feet in 1 minute. So your answer is Emily because she ran the most distance in 1 minute.

Answer:

c= 12t

c is the amount of energy you burn, so it'll be the "solution" to the equation. Multiply 12 times the amount of time you spend exercising to find how much energy you'll burn.

Answer: The area is 572.5566

Step-by-step explanation:

27÷2=r=13.5

A=πr²

A=3.1416(π) · 13.5²(r)

A=572.5566

Answer:

Given:

Diameter= 27 inches

radius= d/2

        =27/2

        =13.5

Answer:

300,000,000

Step-by-step explanation:

change everything after the 3 to a zero, hope this is the answer you are looking for

Answer:

16 tickets

Step-by-step explanation:

The entry fee ($4) is to be subtracted from the total that Heidi spent ($12).  This leads to $8 left for spending on tickets.

Let the number of tickets Heidi purchased be x.  Then:

$8.00 = ($.50/ticket)x.

Dividing both sides by $0.50,we get 16.

Heidi bought 16 ride tickets.

Answer:

Groceries is 625 a month

Step-by-step explanation:

25 percent of 2500 is 625. To get this answer take the percent and go back 2 decimal places this will turn 25% into 0.25 then multiply 2500 by 0.25 and the answer is 625. This also is the same with the other values. 0.30 0.15 etc.

Answer:

Groceries is 625 a month.(A lot of food for a single)

Step-by-step explanation:

Answer:

(Y × 10) + X = 30

hope it helps

Step-by-step explanation:

Y = Cost of each ticket

X = cost of entry fee

so he bought 10 tickets

so you multiply cost of each ticket ( y ) by 10

then you add the entry fee ( x ) to find the total cost ( $30 )

AB corresponds to AC. Both are the left diagonal lines of triangle ABE and triangle ACD. Both AB and AC are also the first two letters of ABE and ACD respectively

BE and CD correspond as well. They are the horizontal sides of the two triangles. BE and CD are the last two letters of ABE and ACD.

Set up the proportion below. Then solve for x

AB/AC = BE/CD

AB/(AB+BC) = BE/CD

x/(x+3) = 2/5

5x = 2(x+3)

5x = 2x+6

5x-2x = 6

3x = 6

x = 2

Answer: AB = 2

note how AB = x = 2, so AC = AB+BC = x+3 = 2+3 = 5. This forms the ratio AB/AC = 2/5 which is identical to the ratio BE/CD = 2/5

To find the value of AB in the similar triangles ABE and ACD, use the ratio of the corresponding sides.

Given that ∆ABE is similar to ∆ACD, we can write the ratio of the corresponding sides: AB/AC = AE/AD = BE/CD. Note that corresponding sides of similar triangles are proportional. Therefore, the value of AB can be determined by the ratio AB/AC.

For example, if the length of AC is 10 units and the ratio AB/AC is 3/5, we can find the length of AB by multiplying 10 by 3/5: AB = (3/5) * AC = (3/5) * 10 = 6 units.

So, the value of AB depends on the specific information given about the ratios of the sides of ∆ABE and ∆ACD.

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Answer:

3x+ 5 = 6 . Correct.

Step-by-step explanation:

Let x = the number.

          The number tripled: 3x

Tripled and increased by : 3x + 5

                                Equals 6: 3x+ 5 = 6

Correct.

Answer:

Hello from MrBillDoesMath!

Answer:

Choice A.   (1/25 )

Discussion:

The caret symbol, "^", denotes "exponentiation".  So

5 ^-2  = (1/5)^2 = (1/5)* (1/5) = 1/25

Regards,  

MrB

Answer:

Step-by-step explanation:You can first divide 15 by 5, which equals 3.Then multiply that by 10.8.which gives 32.4. Then divide by 5 which would give you 2.16. Hopefully it helps?!

Also if it is right,Please make me brainliest!!!!!!!!!!!!!!!!!!!

Answer:

43.2 minutes  PLEASE GIVE BRAINLIEST

Step-by-step explanation:

10.8 ÷ 15 = .72  (72%)

Now find what 72% of an hour is:

60 x .72 = 43.2

43.2 minutes

For this case we must find the number of marbles that Jennifer has.

Let T be the variable that determines the number of total marbles that Jennifer has.

Let x be the variable that represents the number of red marbles that Jennifer has. So, [tex]x = 7[/tex]

Let y, the variable that represents the number of marbles blues Jennifer has. So, [tex]y = 7[/tex]

To find the value of T, we must add the variables x and y.

So, [tex]T = x + y[/tex]

[tex]T = x + y[/tex]

[tex]T = 7 + 7\\T = 14[/tex]

So, Jennifer has 14 marbles.

Answer:

14 marbles

Answer:

thousands place?

Step-by-step explanation:

169.866666667

9 in tenths place

6 in hundredths place

1 is in the thousands place

Answer:

Step-by-step explanation:

Answer:

Rounding, we get 11.5 percent

Step-by-step explanation:

To find the percent of discount, we take the original price, subtract the new price, and divide by the original price.  Then multiply by 100 for the percent.

percent discount = (original - new)/ original * 100

percent discount = (36.30-32.12) /36.30 * 100

percent discount = (4.18) /36.30 * 100

percent discount = .115151515 * 100

percent discount = 11.51515 percent

Rounding, we get 11.5 percent

Answer:

Distance = 70 + 55 = 125 kilometers

Time = 4 + 3 = 7 hours

Rate = Distance / Time

Rate = 125 / 7 = 17.8571428571 kilometers per hour

Step-by-step explanation:

The average speed:

[tex]v=\dfrac{total\ distance}{total time}[/tex]

We have

total distance = 70 km + 55 km = 125 km

total time = 4 h + 3 h = 7 h

The average speed:

[tex]v=\dfrac{125\ km}{7\ km}\approx18\ \dfrac{km}{h}[/tex]

Answer:

The Han dynasty last was, 215 years

Step-by-step explanation:

Given statement: The Han dynasty lasted from 206 B.C. to 9 A.D.

To find how many years did the dynasty last.

B.C. represents Before Christ

A.D. represents After Death

To find the difference between two dates,

You can see that the endings in the given 206 B.C. and 9 A.D. are B.C. and A.D. are different.

Just add these 206 and 9 we get;

[tex]206 + 9 = 215[/tex] years

Therefore, 215 years did the Han dynasty last.

f  ( x ) =  3 x −  1

Hope that helps

Answer:

4.5       3.5       3           -1        -3

Step-by-step explanation

the first number of the decimal is the whole number which means 4.5 and 3.5 are the 2 largest and for negative numbers. if the number is further away from zero that number is smaller.

For example

-15 is less that -1

this is so because the 15 is further away from the zero than the one

Answer:

a perfect square is when a number is multiplied by itself. For example, 4*4=16.

16 is the perfect square

something like 20 would not be a perfect square because it is 5*4 and they are not the same number.

Step-by-step explanation:

Answer:

The product of a rational number multiplied by itself.

Step-by-step explanation:

9² = 9×9 which equals 81.  81 is the perfect square of 9 which can also be said that 9 is the square root of 81 or √81

Answer:

-3

Step-by-step explanation:

Parallel lines have slopes that are the same.

 So if one line has a slope that is -3, any line that is parallel will have the same slope