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Step by step solutions
Answer:
Step-by-step explanation:
9 * -9 * -1 =
-81 * -1 =
81 <===
In multiplying (or dividing), if the signs are the same, the result is positive
if the signs are different, the result is negative
these rules do not apply to addition or subtraction
Answer:
c
Step-by-step explanation:
Answer:
Speed of car (M) = 65 Unit/hour
Step-by-step explanation:
Given:
Speed equation;
455 = Mx
Time taken (x) = 7 hours
Find:
Speed of car (M)
Computation:
455 = Mx
455 = M(7)
Speed of car (M) = 65 Unit/hour
Answer: x + 2y = 4
x - x + 2y = -x + 4
2y = -x + 4
2 2
y = ⁻¹/₂x + 2
Step-by-step explanation: