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Dimas [21]
3 years ago
11

10+2((8+4/2)-1) can you answer this with work shown please? It equals 28 but i can only get 27

Mathematics
1 answer:
Inessa05 [86]3 years ago
7 0
10 + 2 ( ( 8 + 2 ) -1 )
10 + 2 ( 10 - 1 )
10 + 2 (9)
10 + 18 = 28

Do you see where you could've gone wrong?
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C. a leaf is only one digit
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3 years ago
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The length of a rectangle is 12 units longer than the width. The perimeter is 7 times the width. Find the length and the width o
katen-ka-za [31]

Log explanation below; answer is at bottom.

If the length, l, is 12 units longer than the width, w, then w = l - 12. If the perimeter, p,

p = 2l +2w,

is 7 x w, then

w = p/7

When two things are set equal to the same variable, they are equal to each other, so,

l - 12 = p/7

Now you need to get rid of the p so you are only working with one variable. To do this you plug in whatever p is equal to for p, so,

l - 12 = (2l + 2w)/7 now to get rid of the w do the same thing we did with p just for w. So,

l - 12 = (2l + 2(l - 12))/7

To solve this you want to multiply both sides by 7 first to get rid of the fraction.

7l - 84 = 2l + 2(l - 12)

Next you want to distribute the 2 over the l and the 12.

7l - 84 = 2l + 2l - 24

Next you want to combine like terms on each side.

7l - 84 = 4l - 24

Next add 84 and subtract 4l from sides to isolate the variable.

3l = 60

Now divide each side by 11 to get your answer.

l = 20.

To find the width,

w = l - 12  

Just plug in and solve.

w = 20 - 12

w = 8

So your length and width are 20 and 8.

l = 20

w = 8

7 0
3 years ago
Mealworms are a healthy food for wild song birds. Adam buys a 3 oz container of mealworms for $7.35. Marco buys a 5 oz container
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Answer: 5 oz

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3 0
3 years ago
Amy has 5 yards of border to put around a garden. She uses all the border to make four sections that are the same length. Which
9966 [12]
I added a screenshot of the question along with the given choices

<u><em>Answer:</em></u>
F. 4 <span>÷ 5

<u><em>Explanation:</em></u>
We know that Amy has 5 yards of boarders and that she will use them to make 4 equal borders.
<u>This means that:</u>
she will divide 5 yards by 4 to know the length of each border

Among the given choices, choices G, H and J show the division of 5 by 4 which is correct representation of the length
On the other hand. choice F shows the division of 4 by 5 which is an incorrect representation of the length.

Hope this helps :)</span>

5 0
3 years ago
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Anna35 [415]

Answer:750

Step-by-step explanation:

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