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Lelu [443]
3 years ago
14

Aisha changed 1.45+2.38 to 1.5 + 2.3 in order to estimate the sum.what estimation method did she use?

Mathematics
1 answer:
vova2212 [387]3 years ago
5 0

Answer:

rounding to the nearest tenth

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3 years ago
What is the value of the expression
Y_Kistochka [10]

Answer:

0.8

Step-by-step explanation:

We begin with the expression: 0.5+(-\frac{3}{4} )+0.25-(-\frac{4}{5} )

First, we need to convert the fractions into decimals to make this easier.

-\frac{3}{4}=-0.75 and -\frac{4}{5} =-0.8

Once we have this, we can simplify it

0.5-0.75+0.25-(-0.8)\\\\0.5-0.75+0.25+0.8\\\\0.75-0.75+0.8\\\\0.8

4 0
3 years ago
Somebody please help me answer this
nata0808 [166]

Answer:

D

Step-by-step explanation:

When somethin is decreasing you would subtract the percent it was decreasing by, by 1.

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7 0
3 years ago
2. (01.02 MC)<br> Find the value of the expression 4a4 – 2b2 + 40 when a = 2 and b = 7. (5 points)
Sergio039 [100]

Answer:

4x2x4 - 2×7×2 + 40

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6 0
3 years ago
15 = 2c + 7<br> Solve for c
DaniilM [7]

Step-by-step explanation:

15=2c+7

15-7=2c

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c=4

5 0
3 years ago
Read 2 more answers
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