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PIT_PIT [208]
3 years ago
8

Solve the equation. 3y+20=3+2y

Mathematics
2 answers:
lukranit [14]3 years ago
6 0
Subtract 2y from both sides
y+20=3

Subtract both sides by 20
y=-17

Final answer: y=-17
gladu [14]3 years ago
5 0
<h2>{Algebra II: Solving Inequalities}↴</h2>

1.) Solve the equation.  3y+20=3+2y

  • -17

2.) -5y-9=-(y-1)

  • -2½

3.) Use an algebraic equation to solve the problem.  

<em>A rectangle is 3 times as long as it is wide. The perimeter is 60 cm. Find the dimensions of the rectangle. Round to the nearest tenth if necessary.</em>

  • 7.5 cm by 22.5 cm

4.) Is the following always, sometimes, or never true?  14+3x-7=7x+7-4x

  • always

5.) Solve the equation or formula for the indicated variable.  S=5r²t, for t

  • t=S/5r²

100% Correct ✨

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Ghella [55]

Answer:

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Step-by-step explanation:

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6 0
3 years ago
A bowling alley charges $2.50 per game plus $4 to rent shoes. A second bowling alley charges $4 per game plus $1 to rent shoes.
adelina 88 [10]

Answer:

The person would have to play 2 games for the two bowling alleys to cost the same amount

Step-by-step explanation:

Assume that the number of games that makes the two costs equal is x

∵ A bowling alley charges $2.50 per game plus $4 to rent shoes

∵ The number of games is x

∴ The cost = 2.50x + 4

∵ A second bowling alley charges $4 per game plus $1 to rent shoes

∵ The number of games is x

∴ The cost = 4x + 1

∵ They have the same cost

→ Equate the 2 expressions above

∴ 4x + 1 = 2.50x + 4

→ Subtract 2.50x from both sides

∵ 4x - 2.50x + 1 = 2.50x - 2.50x + 4

∴ 1.50x + 1 = 4

→ Subtract 1 from both sides

∵ 1.50x + 1 - 1 = 4 - 1

∴ 1.50x = 3

→ Divide both sides by 1.50

∴ x = 2

∴ The person would have to play 2 games for the two bowling alleys to

   cost the same amount

7 0
3 years ago
How do ratios work. is there trick you can use to do very ratio
inn [45]

Answer:

\frac{5}{8} :\frac{y}{24}

Cross multiply.

y × 8 = 24 × 5

Simplify.

8y = 120

Divide each side by 8.

8y ÷ 8 = 120 ÷ 8

Simplify.

y = 15

\frac{6}{8} :\frac{y}{24}

You can simplify 6/8.

\frac{3}{4} :\frac{y}{24}

Cross multiply.

y × 4 = 3 · 24

Simplify.

4y = 72

Divide each side by 4.

4y ÷ 4 = 72 ÷ 4

Simplify.

y = 18

5 0
3 years ago
Solve for all solutions (2x+3)2=81
Scrat [10]
X=12
Hope this helps

3 0
3 years ago
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Find the perimeter of the rectangle with points A(-1,4), B(3,4), C(-1,-2), D(3,-2).
Virty [35]

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6 0
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