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Quiz Section 2.6 - Solving Two-Step Equations
供稿人: Clark
(原作者: Bennett)
Type answer as: r[space]=[space]solution   
10
r
+ 4 = 5
Type answer as: x[space]=[space]solution   
-10 - 6x = 110
Type answer as: p[space]=[space]solution   
3p - 2 = -29
Type answer as: r[space]=[space]solution   
1 - r = -5
Type answer as: n[space]=[space]solution   
-9 +
n
4
= -7
Type answer as: h[space]=[space]solution  
4 + 2.2h = -3.7
Type answer as: g[space]=[space]solution  
-5g +2.3 = -18.8
Type answer as: t[space]=[space]solution  
-6t - 7 = 17
Pollard purchased softball equipment and uniforms for 
a total cost of $1,836.  The equipment cost $612,
 and the uniforms cost $25.50 each.  
Which equation could be used 
to find out how many uniforms the school purchased?
1836 = 612x + 25.50
1836/25.50 + x = 612
1836 = 612 + 25.50x
x/1836 = 612(25.50)
The USDA (U.S. Department of Agriculture) recommends 2,500 calories per day for teenage boys.  If you double the number of calories per day that the USDA recommends for young children, and then subtract 100, you get the number of calories per day recommended for teenage boys.  Which equation could be used to calculate the number of calories per day recommended for young children?
2500 = 2x -100
-100 = 2500 + 2x
2500 = 100 - 2x
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