Answer:
x=20
Step-by-step explanation:
x - 5 = 15
x +5 = +5
x = 20
Answer:
Number of T-SHIRT sold = x = 110
Number of sweatshirt = y = 40
Step-by-step explanation:
Let
Number of T-SHIRT sold = x
Number of sweatshirt = y
The number of T-shirts sold was 10 fewer than three times the number of sweatshirts sold.
x = 3y - 10
Cost of each T-SHIRT = $11
Cost of sweatshirt = $19
Total cost = $1,970
Total = x + y
1,970 = 11(3y - 10) + 19y
1970 = 33y - 110 + 19y
1970 + 110 = 33y + 19y
2080 = 52y
y = 2,080/52
y = 40
Substitute y = 40 into
x = 3y - 10
x = 3(40) - 10
x = 120 - 10
x = 110
Number of T-SHIRT sold = x = 110
Number of sweatshirt = y = 40
Answer:

Explanation:
Volume of rectangular prism is same as volume of cuboid
Length = m units
Width = 6m units
Height = 5m units
Volume of rectangular prism = Length × Width × Height
= m × 6m × 5m
= 6m² × 5m
= 30 m³ unit³
Answer:
15 students celebrate both holidays
Step-by-step explanation:
Let the number of students that celebrate both be x
By set notation, we add up individual sides as follows to give the number of values on the universal set
Mathematically, that will be;
50 = (29-x) + (36-x) + x
50 = 29-x + 36-x + x
50 = 65-x
x = 65-50
x = 15