Answer:
fred spends 1.05 for each pound of peanuts
Step-by-step explanation:
3.15 / 3 = 1.05
y=12x is a direct proportion
Further explanation:
Let us define direct proportion.
"In direct proportion, one quantity varies directly with other quantity or the ratio between both quantities is always constant.
So,
Given:
y =12x
The general form of direct proportion is:
x=ky or y = kx
Here k is the constant of proportionality
Comparing the given variation with general form
y =12x
k = 12
So, the given variation is direct.
Keywords: Proportion, direct proportion
Learn more about proportion at:
#LearnwithBrainly
Answer:
80000
Step-by-step explanation:
Answer:
x = -8
Step-by-step explanation:
Step 1: Write equation
5x - 7(x + 1) = 9
Step 2: Solve for <em>x</em>
- Distribute -7: 5x - 7x - 7 = 9
- Combine like terms: -2x - 7 = 9
- Add 7 to both sides: -2x = 16
- Divide both sides by -2: x = -8
Step 3: Check
<em>Plug in x to verify it's a solution.</em>
5(-8) - 7(-8 + 1) = 9
-40 - 7(-7) = 9
-40 + 49 = 9
9 = 9
Answer:
88% of the cupcakes sold were chocolate :)