Answer:
1. $8.55
2. $4.29
3. $17.00
4. $10.47
5. $40.31
Step-by-step explanation:
To find the average, you have to add all the numbers up and then divide by the amount of numbers you added together.
Equation: (86+87+91+x)/4=98
Solve for x:
86+87+91+x=98*4
264+x=392
x=392-264
x=128
The fourth number is 128
Answer:
y=4x-27
Step-by-step explanation:
Parallel lines have the same slope, so lets use 4 as the slope.
Plug in the slope, and the two points into point-slope form to find the y-intercept:
<u>y+3=4(x-6)</u>
1) Distribute the 4 to x and -6:
y+3=4x-24
2) Subtract 3 from both sides:
y=4x-27
Answer:
its D
Step-by-step explanation: