(X) 4.1.PS-8 Evaluate 8.1x + 7.5y when x = 7 and y = 8. 8.1)+7.5( )= +60.0 8.1()+7.5()+60.0 (Type integers or decimals.)

asked May 17, 2023 132k views

5 votes

(X) 4.1.PS-8

Evaluate 8.1x + 7.5y when x = 7 and y = 8.
8.1)+7.5(
)=
+60.0
8.1()+7.5()+60.0
(Type integers or decimals.)

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4 votes

116.7

Explanation:

${ \blue{ \sf{8.1x + 7.5y}}} \: { \to} \: { \red{ \bold{ {eq}^(n) (1)}}}$

Put x = 7 and y = 8 in Eqⁿ (1)

${ \blue{ \sf{8.1(7) + 7.5(8)}}}$

${ \blue{ \sf{56.7 + 60.0}}}$

${ = { \pink{ \boxed{ \purple{ \sf{116.7}}}}}}$

Apr answered May 22, 2023

by Apr

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