Use the rule of 3 simple
1680 beats ------- 60 min.
x beats -------------- 1 min.
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x = (1680*1)/60 = 1680/60 = 168/6 = 28 beats per minute
hope helped
Answer:
I agree with the student's answer. "x" cannot be -2 because then it would make -20 which is not equal to 20:
5(-2)(2) = ?
-10 x 2 = ?
? = -20
-20 ≠ 20
Step-by-step explanation:
Justificaiton:
5(x)(2) = 20
10(x) = 20
10/10(x) = 20/10
x = 2
Second Justification:
5(x)(2) = 20
5/5(x)(2) = 20/5
2x = 4
2x/2 = 4/2
x = 2
47. my answer needs to be at least 20 characters long there u go
