The number of adults = 41
The number of children = 97
Step-by-step explanation:
Let x be the number of adults and
y be the number of children
then according to the given conditions

From equation 1:
x = 138-y
Putting in equation 2

Dividing both sides by -7

Putting y = 97 in equation 1

Hence,
The number of adults = 41
The number of children = 97
Keywords: Linear equations variables
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Answer:
Total cost for 10 songs = 6 + [0.75 × 10]
= $13.5
Step-by-step explanation:
Answer:
1)P = 2 x(L+l) = 2 x (25+L)
2) Maintaing L= 25 cm
P= 2x (25+45) = 140 cm²
P= 2x (25+0,25m) =2x(25+25)= 100 cm²
P= 2x (25+650 mm) =2x(25+65)= 180 cm²
d) ambigous
P= 2x (25+3dm) = 2x (25+30)=110 cm²
Step-by-step explanation:
Christy's average mph is 48 because 132 divided by 2.75 = 48
2 hours = 120 minutes. So, 30/120 -> 15/60 -> 3/12 -> 1/4