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Virty [35]
3 years ago
6

Renting video games from Store S costs $2.50 per game plus a monthly fee of $5.00. Renting video games from Store T costs $5.00

per game with no monthly fee. The monthly cost to rent video games depends on the number of video games, v, rented. Which inequality represents the situation when the monthly cost at Store S is less than the monthly cost at Store T?
A. 2.5v + 5 < 5v

B. 2.5v + 5 = 5v

C. 7.5v < 5v

D. 7.5v = 5v
Mathematics
1 answer:
elixir [45]3 years ago
6 0
I believe it is B. Sorry I’m not the best at math but hope this helps !!
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Trevor solved the system of equations below. What mistake did he make in his work? 2x + y = 5 x − 2y = 10 y = 5 − 2x x − 2(5 − 2
Arturiano [62]
2x+y=5 \\&#10;x-2y=10 \\ \\&#10;y=5-2x \\&#10;x-2(5-2x)=10 \\&#10;x-10+4x=10 \\&#10;5x-10=10 \\&#10;\boxed{5x=0} \Leftarrow \hbox{the mistake, it should be 5x=20} \\&#10;x=0 \\ \\&#10;2(0)+y=5 \\&#10;y=5

If 2x+y=5, then y=5-2x, so he substituted 5-2x correctly.
x+4x=5x, so he combined like terms correctly.
If 5x-10=10, then 5x=10+10 -> 5x=20, so he subtracted 10 from the right side instead of adding 10 to the right side.

The answer is C.

Here's the correct solution:
2x+y=5 \\&#10;x-2y=10 \\ \\&#10;y=5-2x \\&#10;x-2(5-2x)=10 \\&#10;x-10+4x=10 \\&#10;5x-10=10 \\&#10;5x=10+10 \\&#10;5x=20 \\&#10;x=\frac{20}{5} \\&#10;x=4 \\ \\&#10;y=5-2x \\&#10;y=5 - 2 \times 4 \\&#10;y=5-8 \\&#10;y=-3 \\ \\&#10;(x,y)=(4,-3)
5 0
3 years ago
Please answer only if you know for sure :) Comes from pre-calc btw
vladimir2022 [97]

Answer:

x^2 and x

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
The California State University (CSU) system consists of 23 campuses, from San Diego State in the south to Humboldt State near t
OverLord2011 [107]

Answer:

27

Step-by-step explanation:

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3 years ago
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5 0
3 years ago
The surface area of a right cone is 400.2 m2. The radius of the cone is 6.0 m. Determine the height of the cone to the nearest m
svetoff [14.1K]
                 S = πr(r + √(h² + r²))
          400.2 = 3.14(6)(6 + √(h² + 6²))
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          18.84                 18.84
        21¹⁰⁹/₄₇₁ = 6 + √(h² + 36))
        - 6         - 6
        15¹⁰⁹/₄₇₁ = √(h² + 36)
231²²¹⁰⁰⁵/₂₂₁₈₄₁ = h² + 36
- 36                       - 36
195²²¹⁰⁰⁵/₂₂₁₈₄₁ = h²
                14 ≈ h
8 0
3 years ago
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