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Nimfa-mama [501]
2 years ago
10

Brooks Middle School ordered 712 pizzas on Monday for lunch. The teachers ate 13 of the pizzas for lunch. How many pizzas did th

e staff eat on Monday? Write a number sentence to support your answer
Mathematics
1 answer:
ser-zykov [4K]2 years ago
3 0

Answer:

Step-by-step explanation:

Brooks Middle School ordered 7 1/2 pizzas on Monday for lunch. The teachers ate 1/3 of the pizzas for lunch. How many pizzas did the staff eat on Monday?

This is calculated as: 1/3 of 7 1/2

= 1/3 × 7 1/2 pizzas

Write a number sentence to support your answer

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I believe the correct answer is 35
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Which is taller, the Burj Khalifa or a stack of the money it cost to build the Burj Khalifa
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Answer: The stack of money it cost to build the Burj Khalifa very suprisingly.

Step-by-step explanation:

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3 years ago
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Whats the greatest ten you can multiply by 5 to get close to, but not go over, 335?
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Select the correct answer.
schepotkina [342]

Answer:

He drove the rest of the trip at 30 miles per hour

Step-by-step explanation:

The rule of the distance is D = v × t, where

  • v is the speed
  • t is the time

∵ It is 170 miles from Bruce's house to the city where his brother lives

∴ D = 170 miles

∵ He drove for 2 hours at 55 miles per  hour

∴ t1 = 2 hours and v1 = 55 miles/hour

→ By using the rule above find the distance of this part of his trip

∴ D1 = 55 × 2 = 110 miles

∵ The rest of the trip took 2 hours

∴ t2 = 2 hours

∵ D = D1 + D2

→ Substitute the values of D and D1 to find D2

∴ 170 = 110 + D2

→ Subtract 110 from both sides to find D2

∴ 60 = D2

∴ D2 = 170 - 110 = 60 miles

∵ The rest of the trip is 60 miles

∵ It took 2 hours

∵ D2 = v2 × t2

∴ 60 = v2 × 2

→ Divide both sides by 2

∴ 30 = v2

∴ v2 = 30 miles/hour

∴ He drove the rest of the trip at 30 miles per hour

3 0
3 years ago
The length of a rectangle is four times its width. If the area of the rectangle is 324m^2, find its perimeter.
Anuta_ua [19.1K]

Answer:

perimeter=90

Step-by-step explanation:

We know that the length is four times the width, so:

l=4w

We also know the area, which is 324 m². The formula for area:

A=l*w

Insert the known values:

324=(4w)*w

Solve for w. Simplify by removing parentheses:

324=4w*w\\324=4w^2

Divide 4 from both sides to isolate the variable:

\frac{324}{4}=\frac{4w^2}{4}  \\\\81=w^2

Find the square root of both sides:

\sqrt{81} =\sqrt{w^2} \\\\w=9

The width is 9 m.

We know the width. Now find the length by using the area formula and inserting known values:

324=l*9

Solve for l. Divide both sides by 9:

\frac{324}{9}=\frac{l*9}{9}\\\\  l=36

The length of the rectangle is 36. (You can check: 4 times 9 is 36)

Now find the perimeter:

P=2l+2w

Insert values:

P=2(36)+2(9)\\\\P=72+18\\\\P=90

The perimeter is 90 m.

5 0
3 years ago
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