Answer:
C.
Step-by-step explanation:
Let's solve your equation step-by-step.
25x2=16
Step 1: Divide both sides by 25.
25x2
25
=
16
25
x2=
16
25
Step 2: Take square root.
x=±√
16
25
x=0.8,−0.8
Answer:
r = 6 mph and f = 11 mph
Step-by-step explanation:
Representations:
1) speed of faster cyclist: f = r + 5
2) speed of slower cyclist: r
Distances covered:
(r + 5)(5 hr) + r(5) = 55 mi (total distance covered)
Then 5r + 25 + 5r = 55, or, after reducing this equation:
r + 5 + r = 11, or
2r = 6
Then r = 6 mph and f = 11 mph
Answer ; 10x - 20
Explanation; Multiply each term in the parenthesis by 10. Then multiply the numbers, and you get your answer.
You just have to plug in.
m = -3, x = 7, y = -14
So
-14 = -3 * 7 + b
-14 = -21 + b
b = 7
Therefore;
y = -3x + 7
You can divide both 12 and 9 by 3 so 9 would be 3 and 12 would be 4 so the answer is 3/4
