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3 years ago

Can someone solve a - 3 over 7 s = -8 and a + 24 = -15 STEP BY STEP PLEASE.

Mathematics

2 answers:

Ainat [17]3 years ago

8 0

Answer:

a=-39; s=0.75

Step-by-step explanation:

Solve the System of Equations by Substitution.

First, solve one of the equations for a variable. I'll do the 2nd one because it only has one variable.

a+24=-15 -------> a=-39

Now we know what a is just plug it back into the other equation and get s.

$\frac{a-3}{7s} =-8$

$\frac{-39-3}{7s} =-8$

$\frac{-42}{7s} =-8$

Switch the -8 and 7s

$\frac{-42}{-8} =7s$

Simplify the fraction

5.25=7s

Divide by 7 to isolate the s

0.75=s

TiliK225 [7]3 years ago

6 0

Answer:

2)a+24=-15

a=-15-24

a=-39

Step-by-step explanation:

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sertanlavr [38]

$\huge\underline{Answer ☘}$

a) students that travel to school by car = 14

students that do not travel to school by car = 11

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8 0

2 years ago

In need of some help please.

Hatshy [7]

By the Pythagorean theorem
50^2 = x^2 +(x +34)^2
2500 = 2x^2 +68x + 1156
x^2 +34x -672 = 0
(x -14)(x +48) = 0
x = 14 or -48

The distance from the wall to the base of the ladder is 14 ft.

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8 0

3 years ago

Norma had both chocolate cake and coconut cake at her birthday party. There were 32 people at the party, and 50% of them picked

Lilit [14]

Answer:

There were 40 people total at the party and we assume each had cake of one type.

So, the % of those who had chocolate is:

32/40 = .8 = 80%

Step-by-step explanation:

4 0

3 years ago

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