Answer:
<em>Mechanic A worked for 5 hours</em> and <em>Mechanic B worked for 15 hours</em>
I hope my answer and explanation helped!
<u>okay to get started you need to make a system of equations:</u>
x= number of hours worked by mechanic A
y= number of hours worked by mechanic B
x + y= 20
95x + 60y= 1375
<u>substitute in an equation:</u>
x + y= 20
y= 20- x
95x + 60(20-x)=1375
<u>Solve for x</u>
95x + 1200 - 60x=1375
35x =175
x= 5
<u>plug in x to solve for y</u>
x + y= 20
5 + y= 20
y=15
<u>Check work</u>
then you're done :D
We have an equation: 250/?= 50/100
Cross multiply:
50*?= 250*100
⇒ ?= 250*100/50= 500
The number is 500~
We have another equation: ?/500= 80/100
Cross multiply:
100*?= 80*500
⇒?= 80*500/100= 400
80% of 500 is 400~
<span> and plug it back into the original terms each side was labeled as:
S1: 3(8)=24ft
S2: 4(8)=32ft
S3: 6(8)=48ft
To check add all three sides and ensure they total your 104ft perimeter.
24+32+48=104
Don't forget to report your answers with the units of measurement!!</span>
Answer:
113.75 miles
Step-by-step explanation:
X side
-2
-1
0
1
2
y side
-9
-4
1
6
11
I would say it would be nonlinear
