Answer:
Form an equation:
let x be the price of a shirt
Then, the price of a sweater would be x - 5
So you would have:
4(x - 5) + 3x = 200
simplify
4x - 20 + 3x = 200
7x - 20 = 200
add 20 to both sides
7x = 220
divide both sides by 7
x = about 31.43
That means the cost of the sweater would be 31.43 - 5 = 26.43
Answer:
37
Step-by-step explanation:
45+98+x=180
Let's solve for f.
y=f−1x
Step 1: Flip the equation.
f−x=y
Step 2: Add x to both sides.
f−x+x=y+x
f=x+y
Answer:
f=x+y
Answer:
x < 3
Step-by-step explanation:
6(x + 3) < 5x + 18 + x
- 6x + 18 < 6x + 18
- 6x + 6x < 18 + 18
- 12x < 36
- x < 36 ÷ 12
- x < 3
This method is called cluster sampling. I hope it will work.
