The expression (20-6)÷2 already equals 7, as applying the order of operations inside the parentheses followed by the division gives the correct result. The second expression, 20-(6÷2), cannot be altered with parentheses to equal 7; it currently equals 17 without any additional changes.
The question involves understanding how parentheses alter the order of operations in arithmetic expressions. We are asked to determine where to place the parentheses in two different expressions to make them equivalent to 7. Let's evaluate both provided expressions:
(20−6)÷2 = (14)÷2 = 720−(6÷2) = 20−3 = 17The first expression, with parentheses around (20-6), results in the value 7 after performing the operations inside the parentheses followed by the division. Therefore, (20−6)÷2 is already equivalent to 7 and does not require any additional parentheses. The second expression, 20−(6÷2), without modifying its current state with the given parentheses, results in 17 and not 7. Hence, we cannot make this expression equivalent to 7 by altering or moving the parentheses.
What is the unit rate for 768.57 m 41.1 h?
Round to the nearest tenth if necessary.
Enter your answer in the box.
The unit rate for 768.57 m in 41.1 h after using the formula is 18.7 m/h.
What is unit rate?Unit rate means the amount rate for the unit quantity of some things, A person runs one mile every 10 minutes if he completes three miles in 30 minutes. The distance traveled in a given amount of time is expressed in miles per minute. The quantity of 1 is always used to denote the unit rate.
Given:
768.57 m in 41.1 h
Calculate the unit rate as shown below,
Unit rate = total distance / total time
Unit rate = 768.57 / 41.1
Unit rate = 18.7
Thus, the unit rate is 18.7 m/h.
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What is the best estimate for 1/6 x 7/8?
A 2
B 1
C 1/2
D 0
Also could you tell me how you got the answer
It is a 3 digit number. All the digits are different. The first and second digits are multiples of 3. The first digit is greater than the second digit. The sum of the two digits is 7 more than the third digit. The number is not a multiple of 5. The third digit is greater than 3.
real world problem for -8+60=28
Please help!
PLEASE HELP!!! How is the process for solving multiplication and division one-step equations like solving one-step addition and subtraction equations?
Final answer:
The process for solving multiplication and division one-step equations is similar to solving one-step addition and subtraction equations by identifying the unknown variable, applying principles of equality, and performing appropriate operations on both sides of the equation.
Explanation:
Identify the unknown variable in the equation.Use the principles of equality: whatever you do to one side, you must do to the other.Apply multiplication/division to both sides as needed to solve for the variable.Can someone help me on #5
A straw for a box drink is 4 1/8 inches long and costs $0.015 to make. The straws are laid end to end in a line until they extend 123 3/4 inches. How many straws are in the line and how much do they cost?
To create a line of 123 ³/₄ inches with straws each measuring 4 ¹/₈ inches, 30 straws are needed. The cost to make these straws is $0.45.
To determine how many straws are in the line that extends 123 ³/₄ inches using straws that are each 4 ¹/₈ inches long, you would divide the total length of the line by the length of one straw. Converting to improper fractions for ease of calculation, we get:
Total length of line: 123 ³/₄ inches = 495/4 inchesLength of one straw: 4 ¹/₈ inches = 33/8 inchesDividing the total length by the length of one straw:
Number of straws = (495/4) / (33/8) = (495/4) × (8/33) = 30 strawsNext, to find the total cost of the straws:
Cost per straw = $0.015Total cost = 30 straws * $0.015 = $0.45Therefore, 30 straws are used to create the line and the total cost for these straws is $0.45.
label each clock with at least 3 equivalent fractions to show what part of an hour has passed
To show what part of an hour has passed using 3 equivalent fractions, we use the position of the hour hand relative to the clock's 12-hour cycle. For instance, if the hour hand is at 3, 1/4 of an hour has passed, which can be shown as 1/4, 2/8, or 3/12.
Explanation:To label each clock with at least 3 equivalent fractions to show what part of an hour has passed, we would typically look at how much of the 12-hour cycle of the clock has been covered. For example, if the hour hand is pointing at the 3, a quarter of the cycle has passed, because 3 out of 12 hours have elapsed. Therefore, the equivalent fractions representing this time segment could be 1/4, 2/8, and 3/12. The idea here is that each fraction must have a numerator and denominator, which, when simplified, would result in 1/4.
More examples include if the hour hand points at 6, half of the clock or an hour has passed, hence equivalent fractions could be 1/2, 4/8, and 6/12. If it's at the 9, three-fourths of the clock has passed, so equivalent fractions could be 3/4, 6/8, and 9/12. Understanding time conversion between words and numbers and basic fractions is crucial to identifying these equivalent fractions on an analog clock.
Just wanted to make sure
city a populatuon is 15,000 city b population is 12,000 city a is what percent larger than city b
8x=3x+10
solve plzzzz
find the area of the larger rectangle by finding the area of the two small rectangles and adding them.
Answer:
21 square units
Step-by-step explanation:
the length is 5+2=7( square units)
So the area is 7*3=21 (square units)
I hope it'll help you much
Thank you for asking
How do you get this?
A factory produces 4 gallons of orange juice for every 24 gallons of apple juice produced. Use this ratio to answer the question.
The factory produced 6,260 gallons of orange juice during the rest of the week. How many gallons of apple juice did they produce during the rest of the week?
gallon(s)
a swimming pool requires 672ft2 of floor space.The length of the swimming pool is 32ft
If r = 6 units and x = 8 units, then what is the volume of the cylinder shown above? A. 1,152 cubic units B. 168 cubic units C. 288 cubic units D. 48 cubic units
The correct option is c.
The volume of a cylinder with a radius of 6 units and a height of 8 units is approximately 904.32 cubic units when using π as 3.14 in the formula, and is exactly 864 cubic units when using π as 3 in the formula.
Explanation:The given question is based on the formula to calculate the volume of a cylinder. The formula is V = πr²h where V is the volume, r is the radius of the base, h is the height of the cylinder, and π (Pi) is approximately equal to 3.14.
In this case, r = 6 units and h = 8 units. Now, substituting these values into the formula:
V = π * (6 units)² * 8 units = 3.14 * 36 sq.units * 8 units = 904.32 cubic units
The available options don't include this value, but keep in mind that π is typically approximated in school-level problems, which might account for a slight variance in the final answer.
If π is approximated to 3 (instead of 3.14), the volume would be 3 * 36 * 8 = 864 cubic units.
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The complete question is given below:
If r = 6 units and x = 8 units, then what is the volume of the cylinder shown above? Where x is the height of the cylinder.
A. 952.12 cubic units
B. 904.32 cubic units
C. 288.06 cubic units
D. 489.55 cubic units
HELP Me PLEASE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
3. Briefly explain why the death, resurrection, and ascension of Jesus can be considered the most important events that ever happened in human history.
Answer:
It basically was the first documented spiritual connection throughout the world that gave everyone a answer to why and how they were made by an all mighty being, The son of god.
Step-by-step explanation:
use compensation to write 3 different equations with the same sum as 38+16
Following are the calculation of the 3 different equations:
Given:
[tex]\to \bold{38+16 = 54}[/tex]
To find:
write 3 different equations to the given value.
Solution:
[tex]\to \bold{38+16 = 54}[/tex]
In the given question, by adding the value it is equal to 54. So, the calculate of the given sum in 3 different ways can be defined as follows:
[tex]\to \bold{10+44}\\\\\to \bold{5+49}\\\\\to \bold{7+47}\\\\[/tex]
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What is the answer of
3x+5=2x+3?
To solve the equation 3x + 5 = 2x + 3, simplify both sides of the equation by subtracting like terms. The solution to the equation is x = -2.
Explanation:To solve the equation 3x + 5 = 2x + 3, start by simplifying both sides of the equation.
You can do this by subtracting 2x from both sides, which eliminates the x term on the right side.
This leaves you with x + 5 = 3. Next, subtract 5 from both sides to isolate the x term.
This gives you x = -2. Therefore, the solution to the equation is x = -2.
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Cora's kitten weighs 1,200 grams. If he weighed 550 grams at the last visit to the veterinarian's office, what is the percent increase in the kitten's weight rounded to the nearest whole number?
Answer: 118%
Step-by-step explanation:
Cora's kitten weighed in the last visit to the veterinarian's office=550 grams
Right now, Cora's kitten weighs =1200 grams
Increase in the kitten's weight=[tex]1200-550=650\text{ grams}[/tex]
Percent increase in weight=[tex]\frac{650}{550}\times100[/tex]
[tex]=118.18\%\approx118\%[/tex]
Hence, there is 118% increase in kitten's weight.
How might a pair of snakes be used for driving in the rain
Answer:
Step-by-step explanation:
How to write an equation for 2 5/8 miles being 3/4 the way
Cathy wakes up at 7:00 A.M. each morning. She spends 1/10 hour making her bed, 1/5 hour eating breakfast, and 1/2 hour getting ready for school. How long does Cathy spend doing the things each morning.
Cathy spends a total of 48 minutes each morning making her bed, eating breakfast, and getting ready for school.
To calculate the total time Cathy spends each morning:
Making her bed: 1/10 hour = 6 minutes
Eating breakfast: 1/5 hour = 12 minutes
Getting ready for school: 1/2 hour = 30 minutes
Total time: 6 minutes + 12 minutes + 30 minutes = 48 minutes
I need to find 5.29 divided by 6
Then 3.59 devided by 6
The. 4.79 divided by 6 thx
Final answer:
To divide decimals by a whole number, place the decimal point in the quotient above the decimal point in the dividend, divide as with whole numbers, and add zeros if necessary to match decimal places.
Explanation:
To divide decimals by a whole number, you can follow these steps:
Place the decimal point in the quotient (the answer) directly above the decimal point in the dividend (the number being divided).Divide as you would with whole numbers, ignoring the decimal points.If there are more decimal places in the dividend than in the quotient, add zeros to the right of the quotient until the decimal places match.Using this method, we can solve the given problems:
5.29 divided by 6 = 0.8817
3.59 divided by 6 = 0.5983
4.79 divided by 6 = 0.7983
The cost of 7 scarves is $43.75. What is the unit price?
a 16 oz package of brown rice cost 79 cents and a 32 oz. package cost of white rice cost 3.49. which package si a better buy. PLEASE SHOW YOUR WORK.
Answer:
Brown rice
Step-by-step explanation:
We must determined how much you pay per oz. for each type of rice to determine the best buy.
For brown rice:
[tex]79/16=4.93[/tex]
You pay approximately 5 cent per oz. of brown rice.
For white rice:
[tex]3.49/32=0.109=0.11[/tex]
You pay 11 cents per oz. of white rice.
White rice is twice the price of brown rice per oz.
∴ brown rice
On average,The .U.S. produces 36.5 million tons of fruit each year.About how much fruit does it produce in 2.25 years?
Answer:
82.125 million tons
Step-by-step explanation:
The U.S. produces 36.5 million tons of fruit each year.
To calculate the amount of fruits It produces in 2.25 years we multiply the production of 1 year to 2.25 years.
It produces fruits in 2.25 years = 36.5 × 2.25
= 82.125 million tons
The U.S. produces 82.125 million tons of fruit in 2.25 years.
Simplify each expression Justify each step
(22+19b)+7
18+(5+6m)
11s(4)
10y(7)
(9+31+5)[(7times5)times4]
how do you find the constant ratio in math?
Final answer:
To find the constant ratio in math, set up a proportion with two ratios and solve for the unknowns.
Explanation:
To find the constant ratio in math, you typically set up a proportion by equating two ratios. For example, if you have a ratio of 1:2, you can set up the proportion as 1/x = 2/y, where x and y represent the unknown values.
You then solve for the unknowns by cross-multiplying and simplifying the equation. In this case, the constant ratio would be x:y = 1:2.
I am part of a whole I am greater than three fourths but less than nine tenths I am a decimal with a 3 in my hundredths place what number am I ?
A submarine changed its depth by -24 ft each minute in 6 min. What was the total change in depth at the end of the 6 min
Answer:
-144ft
Step-by-step explanation: