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Strike441 [17]
3 years ago
5

I don't know how to do math that good so i need help with math

Mathematics
1 answer:
strojnjashka [21]3 years ago
5 0

Answer:

sure i can definitely help

Step-by-step explanation:

whats your problem?

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Is table salt an Electrolyte?​
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Julie has three boxes of pens. The diagram shows expressions for the number of pens in each box. Look at these equations.
vovangra [49]

Answer:

a = c + 16

Step-by-step explanation:

a = b + 12

b = c + 4

Solve for b in the first equation.

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3 years ago
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In this diagram, BAC~EDF. If the area of BAC=15 in2, what is the area of EDF? 4, 5.
lesya692 [45]

Answer:

9.6 square inches.

Step-by-step explanation:

We are given that ΔBAC is similar to ΔEDF, and that the area of ΔBAC is 15 inches. And we want to determine the area of ΔDEF.

First, find the scale factor <em>k</em> from ΔBAC to ΔDEF:

\displaystyle 5 k = 4

Solve for the scale factor <em>k: </em>

<em />\displaystyle k = \frac{4}{5}<em />

<em />

Recall that to scale areas, we square the scale factor.

In other words, since the scale factor for sides from ΔBAC to ΔDEF is 4/5, the scale factor for its area will be (4/5)² or 16/25.

Hence, the area of ΔEDF is:

\displaystyle \Delta EDF = \frac{16}{25}\left(15\right) = 9.6\text{ in}^2

In conclusion, the area of ΔEDF is 9.6 square inches.

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3 years ago
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Vikentia [17]

Step-by-step explanation:

If Alina spends 60% of her monthly income then money left with her in % is 40%

Therefore, her savings= 40%of 35000

= 40/100 × 35000

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3 years ago
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