Answer:
x = 1, y = 10
Step-by-step explanation:
y = -5x + 15 --- Equation 1
2x + y = 12 --- Equation 2
Substitute y = -5x + 15 into Equation 2:
2x + y = 12
2x - 5x + 15 = 12
Evaluate like terms.
15 - 3x = 12
Isolate -3x.
-3x = 12 - 15
Evaluate like terms.
-3x = -3
Find x.
x = -3 ÷ -3
x = 1
Substitute x = 1 into Equation 2:
2x + y = 12
2(1) + y = 12
2 + y = 12
Isolate y.
y = 12 - 2
y = 10
Answer:
a. $5.43
b. $141.25
c. $8.75
Step-by-step explanation:
First you find the total amount you it cost for all the items
$135.82 + 4% = $141.25
You give three $50 dollar bills
50 * 3 = 150
$150 is the amount you give
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141.25 - 135.82 = 5.43
$5.43 is the amount of the sale price
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To find the amount is cost for all the items you add the sales tax + the original price
$135.82 + 4% = $141.25
$141.25 is the amount including the tax
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Subtract
150 - 141.25 = 8.75
So you will get $8.75 back
Answer:
θ = 60.34
Step-by-step explanation:
= 16.177
= θ = .869
= 60.34
It’s 38 :) I hope it helps
Answer:
General Formulas and Concepts:
- Order of Operations: BPEMDAS
- Equality Properties
Step-by-step explanation:
<u>Step 1: Define equation</u>
3x + 47y = 1094
<u>Step 2: Solve for </u><em><u>y</u></em>
- Subtract 3x on both sides: 47y = 1094 - 3x
- Divide both sides by 47: y = (1094 - 3x)/47
