Raymond B. answered 05/11/22
Tutor
New to Wyzant
1215 x 8/9 = 1080 useable parts
1215 x 1/9 = 135 defective
1080 = 8 times 135
1080+ 135 = 1215 total parts
E is correct
Sarah A.
asked 05/10/22A box of machine parts contains eight times as many usable parts as defective parts. If there are exactly 1,215 parts in the box how many of the machine parts are usable
A) 152
B) 135
C) 1041
D) 174
E) 1080
Raymond B. answered 05/11/22
1215 x 8/9 = 1080 useable parts
1215 x 1/9 = 135 defective
1080 = 8 times 135
1080+ 135 = 1215 total parts
E is correct
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