Answer:
Step-by-step explanation:
p and h are number of plumbers and helpers, respectively.
Twenty workers earn a total of $2600
p+h = 20
h = 20-p
160p + 100h = 2600
160p + 100(20-p) = 2600
60p = 600
p = 10
h = 20-p = 10
Ten plumbers and ten helpers.
Answer:
He fed his dog 4 pounds of dog food
2/5 = 40%
40% x 10 = 4
Step-by-step explanation:
Subtract x from both sides
divide by -1
graph
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t – 12.8 = 15.2. I am glad to help u out</span>
Answer:
300 bags of wheat
Step-by-step explanation:
We can get the answer by using<em> algebraic expressions. </em>If 1,200 bags means a 20% decrease in the yield from 2005, then it is<em> 80% of the yield in 2005</em>.
Let's solve.
Let x be the number of bags yield from 2005.
We can say: 1,200 is 80% of x
1,200 = 80% of x
1,200 = 0.80(x)
x =
<em>x = 1,500</em>
The number of bags yield from 2005 is 1,500.
Let's check.
Let x be the decrease in yield.
1,500 x 20% = x
1,500(0.20) = x
x = 300
The 20% decrease in yield is equal to 300 bags of wheat.
1,500 - 300 = 1,200 bags
The answer is correct.