2 answers:
6.4x + 2.8y = 44.4
6.4(3) + 2.8y = 44.4
19.2 + 2.8y = 44.4
-19.2 -19.2
2.8y = 25.2
------ ------
2.8 2.8
y = 9
Answer:
when x=3 the value of y is 9
Step-by-step explanation:
6.4x+2.8y=44.4, when x=3
To find y when x=3, plug in 3 for x in the given equation
Subtract 19.2 on both sides
Divide both sides by 2.8
y=9
So when x=3 the value of y is 9
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1 he died In 326 B.C
2 I believe the answer is 120 calories
3 the answer is -14
Answer:
f−1(x)=x5+45
Step-by-step explanation:
552-98 = 450
454/2 = 227
washer cost $227
227+98 = 325
dryer cost $325
