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2 years ago

Solve system of equations: 4l + 8m = 40 5l + 2m = 28 Please show steps!

1 answer:

3 0

Answer:

l = 9/2 or 4.5

m = 11/4 or 2.75

Step-by-step explanation:

4l + 8m = 40

8m = 40 - 4I

m = 5 - 0.5l

5l + 2m = 28

5l + 2(5 - 0.5l) = 28

5l + (10 - l) = 28

4l + 10 = 28

4l = 18

l = 18/4 or 9/2

l = 4.5

4l + 8m = 40

4(4.5) + 8m = 40

18 + 8m = 40

8m + 18 = 40

8m = 22

m = 22/8

m = 2.75

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2 years ago

Find mEC.<br> 5x - 27)<br> (2x - 5)<br> D

UNO [17]

Answer:

Arc EC = 58°

Step-by-step explanation:

First, find the value of x.

m<D = ½(arc EC) => Inscribed Angles Theorem

Substitute

2x - 5 = ½(5x - 27)

Multiply both sides by 2

2(2x - 5) = 5x - 27

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Collect like terms

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2 years ago

PLEASE HELP

Pavel [41]

Answer:

15.06

Step-by-step explanation:

I don't have a step-by-step explanation, but i hope this helps!!!

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2 years ago

100 Points ! ! !

Andrews [41]

$3299.62

compounded daily interest : $\sf A = P(1 + \dfrac{r}{n})^{nt}$

$\sf 9,824.00(1 + \dfrac{3.62\%}{365})^{(365)(8)}$

$\sf \$13,123.62$

total money he will have : $13,123.62

amount earned : $13,123.62 - $9,824 = $3299.62

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2 years ago

Read 2 more answers