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bagirrra123 [75]
2 years ago
10

Courtney must earn at least $150 to pay for broken window. She earns $10 for every car she washes.

Mathematics
1 answer:
valkas [14]2 years ago
5 0

Answer:

10c ≥ 150

At least 15 cars (or c ≥ 15)

Step-by-step explanation:

If she gets $10 for every car she washes a car then 10c is the rate of her gaining money and she needs at least (greater than or equal to) $150.

This equation can be used to express the situation:

10c ≥ 150

<em>To solve you divide the 10 from both sides of the inequality to get.</em>

c ≥ 15

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The domain (input values) of the sine function is:
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Answer:

The domain (input values) of the sine function is:

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3 years ago
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Lien Chen took out a single-payment loan for $2300.00 at 6.25% ordinary interest to pay for her federal income tax bill. If the
Assoli18 [71]

Using simple interest, it is found that she would have to pay the loan back on May 17.

<h3>Simple Interest</h3>

Simple interest is used when there is a single compounding per time period.

The amount of money after t years in is modeled by:

A(t) = A(0)(1 + rt)

In which:

  • A(0) is the initial amount.
  • r is the interest rate, as a decimal.

In this problem, the parameters are:

A(t) = 2317.97, A(0) = 2300, r = 0.0625

Solving for t, we have that:

A(t) = A(0)(1 + rt)

2317.97 = 2300(1 + 0.0625t)

1 + 0.0625t = \frac{2317.97}{2300}

1 + 0.0625t + 1.00781304348

0.0625t = 0.00781304348

t = \frac{0.00781304348}{0.0625}

t = 0.125

Considering a year has 365 days:

0.125 x 365 = 46

46 days after April 1, hence she would have to pay it back on May 17.

More can be learned about simple interest at brainly.com/question/25296782

4 0
2 years ago
A ball is thrown into the air with an initial upwards velocity of 60ft/s. Its height (h) in feet after t secons is given by the
Strike441 [17]
I believe you will sub. in 3 for t so h=-16(3)^2 + 60(3)+6. then you will just solve!
h=-16(9)+60(3)+6
h= -144 + 180 + 6
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3 0
3 years ago
Solve for x using technology 2 log 3(x-1)=log(4 x 2-25)
bagirrra123 [75]
<span>2 log 3(x-1)=log(4 x 2-25)
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2.  Rewrite <span>2 log 3(x-1) as log 3(x-1)^2.
3.  Then we have </span>log 3(x-1)^2 = log(4 x 2-25).  We can discard the operator "log" from both sides:   3(x-1)^2 = 4 x 2-25.  There are various ways in which to solve this.  Since you're supposed to "use technology," 
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3 0
3 years ago
I heard this was the place to come for help! I guess I heard wrong This question has been out here for over an hour 4x-x/4+x+1/3
zysi [14]
Don't be snarky !

<u>4x - x/4 + x + 1/3 = 2x</u>

Add up the 'x' terms on the left side:  (4 + 1/4 + 1)x = 5-1/4 x = 21/4 x

Now the equation is:      21/4 x + 1/3 = 2x

2x is the same as  8/4 x .  Subtract it from each side:

13/4x + 1/3 = 0

Subtract  1/3  from each side :

13/4 x = - 1/3

Multiply each side by 4 :

13 x = - 4/3

Divide each side by 13 :

<em>x =</em>  (- 4/3) / (13)  = <em>- 4 / 39</em>
5 0
3 years ago
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