Answer:
0 —> 15
1 —> 13.75
2 —> 12.5
3 —> 11.25
Step-by-step explanation:
Every time she drives for 1 hour, the car uses up 1.25 gallons of gas. If she fills it up and doesn't drive anywhere, the car will still be full with 15 gallons. If she drives for an hour, you would need to subtract 1.25 from 15 which would equal 13.75.
Then if she drives another hour, then you would subtract another 1.25 from 13.75.
Or a quicker way to do it would be if you multiply the number of hours driven by the gallons used per hour then subtract it from the filled up tank.... So for example if she drove 3 hours —> 3•1.25=3.75 then 15-3.75=11.25
Answer:
w=13
Step-by-step explanation:
15+w=3w-11
+11 +11
26+w=3w
-w -w
26=2w
26/2=2w/2
13=w
Option A he would be paid:
$15 per session
Option B he would be paid:
$20 per session
Equations
A: Y = 15x + 17250
B: Y = 20x + 14000
When X = 650 the Y values of A and B are equal.
<em>After 650 training sessions, they would be equal.</em>
Answer:
use substitution method
find equation for value of x/y
2x + 2y = 4
2y = 4 - 2x
y = <u>4 - 2x</u> ----> equation 1
2
so..substitute the
equation 1 to -5x+3y=-18
-5x+3( <u>4 - 2x</u><u> </u><u>)</u> = -18
2
-5x + 3(2-x) = -18
6-3x = -18+5x
6+18= 5x+3x
24 = 8x
<u>2</u><u>4</u> = <u>x</u>
8
x= 3. -----> eq.2
sub eq.2 into 1 to find the value of x
y = <u>4-2(3)</u>
2
y = - 1
x=3 ; y= -1
Answer:
5/-3
Step-by-step explanation:
The slope formula is rise/run.
If you graph this, the two points make a line that slopes downwards. The higher point is in the negative axis, which means that the run will be negative.
you rise up 15 points from the first point (1,-6) to get to the same level as the second point. (-8,9). This is your rise.
You go over to the other point, this is your run. The run is -9.
15/-9
we can simplify this fraction.
5/-3 is your final answer.