9514 1404 393
Answer:
85 km/h
Step-by-step explanation:
Let s represent the speed of the slower car. Then the travel time is ...
time = distance/speed
2 = 360/(s +(s+10))
4s +20 = 360 . . . . . multiply by 2s+10
4s = 340 . . . . . . . . . subtract 20
s = 85 . . . . . . . . . . . divide by 4
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The rate of the slower car is 85 km/h.
Answer : 96
x – y = 16
--------> equation 1
x is the higher grade and y is the lower grade
We solve the first equation for y
x - y = 16
-y = 16 -x ( divide each term by -1)
y = -16 + x
Now substitute y in second equation
Take common denominator to combine fractions
Add 8 on both sides
Multiply both sides by
x = 96
We know x is the higher grade
96 is the higher grade of Jose’s two tests.
let the number be x .
we have given a statement that four times a square of number is equal to 36.
so we have frame the equation. option B will be the equation represents that four times a square of number is 3.
Again? Ok, we'll use point slope form this time;
Slope is change in y over change in x,
m = (1 - -1)/(6 - 3) = 2/3
y + 1 = (2/3)(x - 3)
y = (2/3)x - 3
Answer: y = (2/3)x - 3
Algebra
The graph is C, or the graph down left.
This is because the other graphs lack the same vertex.