Answer:
pencils amount = 9 pens amount= 9
Step-by-step explanation:
We start this problem forming two linear equations system.
3*X+7*Y=90
Where X is the amount of pencils and Y is the amount of pens
The second equation is given by the statement, the amount of pencils is equal to the amount of pens, so the second equation is:
X=Y
Merging both equations we have:
3*X+7*X=90
Solving for X we have:
10*X=90
X=9
X=Y=9
Answer:
Step-by-step explanation:
** The above answer is written in reverse, which is the exact same result.
I am joyous to assist you anytime.
Answer:
1. Expression: y = 235x
Answer: 1,175
2. The cost of the shirts is 5 dollars. Alex has 15 dollars in his wallet. He wants to buy 3 shirts. Write an expression that represents this problem.
Step-by-step explanation:
5. 235 per second
5 x 235 = 1,175
Expression: y = 235x
She earned 10 donations.
2.50 ÷ .25 = 10
To double check you can go 10 × .25 = 2.5 then you just add the zero at the end and it becomes 2.50