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Leno4ka [110]
4 years ago
15

Martin had 7 pounds of grape left, and he gave away 2/5 of them. Explain how to use compatible numbers to estimate the amount of

grapes he gave away
Mathematics
2 answers:
Natalka [10]4 years ago
6 0

7 \times  \dfrac{2}{5}  =  \dfrac{14}{5}  \\  \\  \dfrac{14}{5}  = 2 \dfrac{4}{5}

Answer : 2 4/5 grams.

Hope this helps. - M
Vaselesa [24]4 years ago
3 0

Answer:

2/5  is close to  1/2  , and it is easy to find  1/2  of 7 mentally. Half of 7 is 3.5, so Martin gave away about 3.5 pounds.

Step-by-step explanation:

 

click all boxes

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Olin [163]

Step-by-step explanation:

You should prolly subtract 2 from both sides first.

So you get, -|2/5x + 3| > -1 2/5

  • Add three to both sides
  • -|2/5x| = -1 2/5
  • Do -1 and 2/5 divided by 2/5 to get -3.5, x > -3.5

One of the answers is x > -3.5 but you need to switch the sign to less than and make the other side the opposite.

-( \frac{2}{5}x + 3 ) < 1 \frac{2}{5}

You see that, switched the sign and made whats on the right side opposite. So now solve for x again but with this new equation. Also, the parentheses are absolute value signs

Subtract 3 from both sides

-|2/5x| < -1 and 3/5

Divide 2/5 from each side to get x < -4

I hope I'm correct, my bad if I'm wrong

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Answer:

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Step-by-step explanation:

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36÷9 because if your total is 36 an it takes 9 apples make 1 pie u would divide

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12+(8x(4+3)+2)-6 evaluate the expression
Slav-nsk [51]
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3 years ago
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blsea [12.9K]

Answer:

Step-by-step explanation:

Given

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Requires

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Evaluate as difference of two squares

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