Answer:
A). 15
B). -1.2
Step-by-step explanation:
A). [10(x+3)]-20 = 160
10x+30-20 = 160
10x+10 = 160
10x = 160-10
10x = 150
x = 150/10
x = 15
B). 5{[4(8+(5x))]-9} = 85
5(32+20x+9) = 85
5(32+9+20x) = 85
5(41+20x) = 85
205+100x = 85
100x = 85-205
100x = -120
100x/100 = -120/100
x = -1.2
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HOPE THIS HELPS!!!
Answer:
75/6 = 12.5
Step-by-step explanation:
Mean = The sum divided by the number of numbers.
<span>the answer is: a=0.888888888889
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I read this as (h of g)(x)=h(x). This is h(g(x))=h(x), h(x+5)=x², (x+5)²=x².
x²+10x+25=x², 10x=-25, x=-2.5.
CHECK: g(-2.5)=2.5; h(2.5)=6.25=(-2.5)²
