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Sagot :
Answer:
The following are the correct choices
First : The equation c + d represents the sum of the two numbers
Third: The equation c = (1/2)d - 8 represents the relationship
and the last choice : The number c is 14
Step-by-step explanation:
Translate the word problem into equations and solve for c and d where c is the first number and d the second
Sum is 58 translates to
c + d = 58 Â (1) Â Â ===> Â First choice
First number is 8 less than half the second number translates to
c = (1/2)d - 8 Â (2) Â ==> Third choice
Multiply equation (2) by 2 on both sides giving
2c = d - 16 Â ==> 2c - d = -16 Â (3)
Add equations (1) and (3) giving
c + d + 2c - d = 58-16
3c = 42
c = 42/3 = 14 Â ===> Last choice
Substituting for c in equation (1) gives
14 + d = 58
d = 44
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