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3 years ago

14

An MP3 player costs $70 and song downloads cost $0.95 each. Write an expression that represents the cost of the MP3 player and x

number of song downloads

1 answer:

babunello [35]3 years ago

3 0

Let x represent the number of song downloads and let y represent the total cost

y=0.95x+70

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the Children's Hospital sponsors a 10k race to raise money. it receives $75 per race entry and $10,000 in donations but it must

masha68 [24]

Answer:

There would need to be at least 1,800 entries in order for them to meet their goal.

Step-by-step explanation:

To find this, we must write an equation that helps solve it. We know that for every entry (x), we gain 75 and lose 25. We can express this as the following.

75x - 25x

Then we can add the number of donations.

75x - 25x + 10,000

Then we can set it as greater than or equal to the goal number.

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Now we solve this using the order of operations.

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50x ≥ 90,000 -----> Divide by 50

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3 years ago

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What are the answer options?

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3 years ago

Graph the system by using technology. What is the y-coordinate of the solution?

son4ous [18]

Take second equation here,
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Now, substitute the vaue of 4x in 1st equation,
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Hope this helps!

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4 years ago

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coldgirl [10]

Answer:

$\boxed{ \ - \frac{3}{45} }$

Step-by-step explanation:

10 3/9 - 10 2/5

we need to convert mixed fractions to improper fractions

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Now, we have 93/9 - 52/5

We need to equate the denominators, before subtracting them.

$\frac{93}{9} - \frac{52}{5} = \frac{93 \times 5}{45} - \frac{52 \times 9}{45}$

$\frac{465}{45} - \frac{468}{45}$

$\frac{ - 3}{45}$

$\boxed{ - \frac{3}{45} }$

The result of 10 3/9- 10 2/5 is - 3/45

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2 years ago