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Aleks [24]
3 years ago
7

Vivi is a drummer for a band. She burns 756 calories while drumming for 3hours. She burns the same number of calories per hour.

How many calories does Vivi burn per hour?
Mathematics
1 answer:
lions [1.4K]3 years ago
7 0

This question uses the concept of the division.

Vivi, the band drummer, burns 765 calories in 3 hours. And she burns these calories at the same rate. Which means she burns the same amount of calories per hour.

Thus, the set up equation for this question will be:

Energy burnt in 3 hours=756 calories

Therefore, Energy burnt in 1 hour = \frac{756}{3} =252 Calories.

Thus, the required answer is that Vivi burns 252 Calories of energy per hour while drumming.

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I need help on this. its a chance to get a passing grade
kolbaska11 [484]

Answer:

1 5/6

Step-by-step explanation:

We first convert each mixed number to an improper fraction.

To change -6 7/8, we will ignore the negative at first.  Multiply the whole number by the denominator:

6(8) = 48

Add the numerator:

48+7 = 55

Putting the negative back in, we have -55/8.

To change -3 3/4, ignore the negative at first.  Multiply the whole number by the denominator:

3(4) = 12

Add the numerator:

12+3 = 15

Putting the negative back in, we have -15/4.

This gives us

-55/8 ÷ -15/4

To divide fractions, flip the second one and multiply:

-55/8 × -4/15

Multiply straight across:

(-55×-4)/(8×15) = 220/120

Simplifying this, we know that both 220 and 120 are divisible by 10; this gives us

22/12

Both 22 and 12 are even, so they are both divisible by 2.  This gives us

11/6

6 will go into 11 one time, with 5 remaining; this gives us

1 5/6

6 0
4 years ago
-1+- 4x = 11<br> How does it = this I need help pls
luda_lava [24]
X is -3 so you move -1 to the other side of the equation and change the sign to where it’s-4x=11+1 !

then u add 11+1 which is 12

so now you have -4x =12

divide both side by -4 so

-4x/4 n 12/-4

and you get -3
5 0
3 years ago
Please asnwer the picture
S_A_V [24]
Answer is A. 11
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8 0
3 years ago
What will be the result of substituting 2 for x in both expressions below? One-half x + 4 x + 6 minus one-half x minus 2 Both ex
Anit [1.1K]

Answer:

Both expressions equal 5 when substituting 2 for x because both expressions are equivalent

Step-by-step explanation:

Given

\frac{1}{2}x + 4 - Expression 1

x + 6 - \frac{1}{2}x - 2 -- - Expression 2

Required

Find the result of both expressions when x = 2

<em>Expression 1</em>

\frac{1}{2}x + 4

Substitute x = 2

\frac{1}{2} * 2 + 4

1 + 4

Result = 5

<em>Expression 2</em>

x + 6 - \frac{1}{2}x - 2

Substitute x = 2

2 + 6 - \frac{1}{2} * 2 - 2

2 + 6 -1 -2

Result = 5

7 0
3 years ago
Read 2 more answers
Alejandro put down a deposit of $75.00 on a graduation ring, and he then began making weekly payments of $12.50 until the ring w
Rzqust [24]

Answer:

12 weekly payments

Step-by-step explanation:

Here, we want to get the number of weeks in which he made payment for the ring

We start by subtracting the deposit,

That would be;

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Now, we proceed to divide what ie left by the weekly payment to get the number of weeks

That would be;

150/12.5 = 12

7 0
3 years ago
Read 2 more answers
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