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kaheart [24]
3 years ago
8

What is 7.86 rounded to the nearest tenth

Mathematics
1 answer:
Annette [7]3 years ago
5 0
7.86 rounded to the nearest tenth equals to 7.90
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Last week, Leon bought 8 pizzas and 13 cakes
romanna [79]
P = pizza and c =cakes

Last week: 8p + 13c = 134
Today: 28p + 4c = 220

Let’s take the formula for today and subtract 28p from each side to isolate the 4c.

4c = 220 - 28p

Now divide each side by 4

c = (220 - 28p)/4
Simplify to c = 55 - 7p

Now go to the formula for last week, substitute the c for 55-7p

8p + 13(55 - 7p) = 134
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Simplify to 715 - 83p = 134

Let’s add 83p to each side.

715 = 134 + 83p

Subtract 134 from each side

581 = 83p

Divide each side by 83

p = $7
5 0
2 years ago
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maxonik [38]

Answer:

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Step-by-step explanation:

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2 years ago
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guapka [62]
Is this the whole question ?
6 0
3 years ago
Marty has read 32% of his 400-page library book. How many pages has Marty read?
vova2212 [387]

Answer:

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0.32*400

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In total, Marty had read 128 pages of his book.

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