Answer:
x=40 y=16
Step-by-step explanation:
20x+50y=800 you can turn it into slope-intercept form and it would end up being y=-2/3x+16 so now you have your y intercept (16) and you know your rise and run -2(rise)3(run).
Or you can substitute a zero for x and solve for y
20(0)+50y=800 which equals 50y=800 which equals 16 y=16
then you substitute a zero for y and solve for x
20x+50(0)=800 which equals 20x=800 which equals 40 x=40
Answer:
About 16 miles
The equation:
.75x+3.95
At 16 miles Katie will have spent $15.95.
Prime numbers > than 5 are 7, 11, 13, 17, and 19 so 5/20, or 1/4, or 25% chance
Answer:
The Answer is: The Number is 4
Step-by-step explanation:
Let n = the number.
Eight times a number minus 4 equals 8 plus 5 times the number.
8n - 4 = 8 + 5n
3n = 12
n = 4, the number is 4.
Proof:
8(4) - 4 = 8 + 5(4)
32 - 4 = 8 + 20
28 = 28
Hope this helps! Have an Awesome Day!! :-)
Answer:
b = -80
Step-by-step explanation:
-16 = 0.2b
Divide both sides by 0.2
We have , -16/0.2 = 0.2b/0.2
Therefore, b = -80
