Answer:
a = -677.29
Step-by-step explanation:
a/8.9 + 99.7 = 23.6
Minus 99.7 from both sides
a/8.9 = -76.1
and multiply both sides by 8.9
a = -677.29
The equation is $130 + $31.67x = 500
Subtract 130 from both sides $31.67x = $370
Divide $31.67 from both sides
X=11.68
BUT
you can’t have .68 of a day so the answer is 11 days.
Answer:
Step-by-step explanation:
1x+3y=17
x=2 y=5
-3x-2y=5
x=-3 y=-2
Answer:
Step-by-step explanation:
<h3>Given</h3>
<u>Substituting y in the second equation:</u>
- x + 1/2x + 1 = 16
- 1.5x = 15
- x = 15/1.5 = 10
Then
- y = 1/2*10 + 1 = 5 + 1 = 6