<span>multiply equation by 36 to get rid of the denominators
36* - 36* = 36(6)
Cancel the denominators
9d - 8d = 216
d = 216 mi to his house
:
:
See if that checks out, find the actual speeds
216/4 = 54 mph
216/4.5= 48 mph
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Answer:
6. Clark left for school at 7:43 A.M. He got to school 36 minutes later. At what time did Clark get to school?
Step-by-step explanation:
Answer:
x = -3
Step-by-step explanation:
6x - 9 = -27 (Given)
6x = -18 (Add 9 on both sides.)
x = -3 (Divide 6 on both sides.)
14/20 = 0.7....multiply by 100 to get ur percent = 70%
so 14 is 70% of 20
An expression has numbers, variables, and mathematical operations. The equation that must be true so that x²+mx+m is a perfect square trinomial is x²+mx+m=(x+2)².
<h3>What is an Expression?</h3>
In mathematics, an expression is defined as a set of numbers, variables, and mathematical operations formed according to rules dependent on the context.
A perfect square trinomial is in the form (a+b)²=a²+b²+2ab. If we compare the perfect square trinomial x²+mx+m, we will get that the value of m should be such that it satisfies the equation
. Since there is only one value that can satisfy this equation that is 2.
Therefore, the equation that must be true so that x²+mx+m is a perfect square trinomial is x²+mx+m=(x+2)².
Learn more about Expression:
brainly.com/question/13947055