Answer: 60 cappuccinos were sold.
Explanation:
x = number of lattes sold
y = number of cappuccinos sold
Two equations can be set up:
x + y = 78
4x + 3y = 252
The first equation can be rearranged and substituted into the other equation to find the value of a variable.
y = 78 - x
4x + 3(78 - x) = 252
4x + 234 - 3x = 252
x + 234 = 252
x = 18
To find y, the value of x can be substituted into either equation.
x + y = 78
18 + y = 78
y = 60
To check answers, substitute both values into the original equations and make sure they work.
x + y = 78
18 + 60 = 78
78 = 78
4x + 3y = 252
4(18) + 3(60) = 252
72 + 180 = 252
252 = 252
Answer:
D. 8 1/2 ÷ 5/6 = x
Step-by-step explanation:
let x be the number of smaller boards
Dividing the total amount of board by the length of each board gives the number of smaller boards.
The division statement is in the format:
Total ÷ number of groups = amount per group
OR
Total ÷ amount per group = number of groups
Each group is a small board. The amount per group is the amount of feet for each board.
8 1/2 ÷ 5/6 = x
<h2><u>Question</u><u>:</u><u>-</u></h2>
solve for x: 3(x + 1) = 2 (x -1)
<h2><u>Solution</u><u>:</u><u>-</u></h2>
- 3(x + 1) = 2 (x -1)
- 3x + 3 = 2x - 2
- 3x -2x = -2 -3
- x = -5
<h2><u>Answer</u><u>:</u><u>-</u></h2>
[Hence, the value of x is -5.]
Answer:
80,84,86,87, 91, 92, 90,94, 100
Step-by-step explanation:
Order them from low too high number grades.
the answer to your question is b
