Answer:
q=
−4t+7u over 8r
Step-by-step explanation:
8qr+4t=7u
Step 1: Add -4t to both sides.
8qr+4t+−4t=7u+−4t
8qr=−4t+7u
Step 2: Divide both sides by 8r.
8qr
8r
=
−4t+7u
8r
q=
−4t+7u
8r
Answer:
q=
−4t+7u
8r
1. 3/6 = 1/2
2. 5/6
3. 3/6 : 3/6 = 3 : 3
4. 3/6 : 3/6 = 3 : 3
5. 5/6 : 1/6 = 5 : 1
7. 3/6 × 1/2 = 1/4
Orange is the shape rotated 180 degrees
Answer:
- <u>120 pens and 200 pencils.</u>
<u></u>
Explanation:
You can set a system of two equations.
<u>1. Variables</u>
<u />
- x: number of pens
- y: number of pencils
<u>2. Cost</u>
- <em>each pen costs</em> $1, then x pens costs: x
- <em>each pencil costs</em> $0.5, then y pencil costs: 0.5y
- Then, the total cost is: x + 0.5y
- The cost of the whole purchase was $ 220, then the first equation is:
x + 0.5y = 220 ↔ equation (1)
<u>3. </u><em><u>There were 80 more pencils than pens</u></em>
Then:
pencils = 80 + pens
↓ ↓
y = 80 + x ↔ equation (2)
<u>4. Solve the system</u>
i) Substitute the equation (2) into the equation (1):
ii) Solve
iii) Substitute x = 120 into the equation (2)
Solution: 120 pens and 200 pencils ← answer
1 gallon is equal to 4 quarts.
So you can either get 2 quarts for $3, or 4 quarts for 3$
1 gallon is the better deal.
