Answer:
x=30
Step-by-step explanation:
(30+x)+30+9x=360
We move all terms to the left:
(30+x)+30+9x-(360)=0
We add all the numbers together, and all the variables
(x+30)+9x+30-360=0
We add all the numbers together, and all the variables
9x+(x+30)-330=0
We get rid of parentheses
9x+x+30-330=0
We add all the numbers together, and all the variables
10x-300=0
We move all terms containing x to the left, all other terms to the right
10x=300
x=300/10
x=30
Answer:
(a)$29.95
(b)A
Step-by-step explanation:
The cost, in dollars, of producing x cellphone cases is given by:
We are required to evaluate: 
The value calculated above represents the additional cost to produce one more item after making 250 items.
Mr. Loomis uses 2.46 gallons of gas
Algebra is a branch of mathematics that uses mathematical expressions to represent problems. Variables such as x, y, and z are combined with mathematical operations such as addition, subtraction, multiplication, and division to
Given that Mr. Loomis owns an SUV with a 24.6-gallon fuel capacity.
He filled the tank and then used exactly one-tenth of the gas on a recent trip.
Do we have to find how many gallons of gas did he use = ?
One-tenth of gas = 1/10
= (1/10)(24.6)
= (24. 6)/ 10
= 2.46
Therefore he uses 2.46 gallons of gas
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Answer:
A
Step-by-step explanation:
