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1 vote
Evaluate 3.6 x plus+4.5 y when x equals=3 and y equals=7.

User Luan Si Ho
by
7.7k points

2 Answers

6 votes
should be 42.3 because, 3.6(3)+4.5(7)=42.3


User Akotian
by
7.4k points
3 votes

Answer:

42.3

Explanation:

the expression we have is:


3.6x+4.5y

and we need to evaluate this when


x=3

and


y=7

to evaluate the expression means that we have to plug in the values for x, and y into the original expression and solve.

So we substitute the values for x and y:


3.6(3)+4.5(7)

and solving the multiplications:


10.8+31.5

finally, doing the sum we get:


42.3

User LoneDuck
by
8.6k points

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