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bazaltina [42]
3 years ago
9

lionel has $400 he spends $5 a day for parking he would like to keep at least $250 for car repairs write and solve an inequality

that can be used to find x
Mathematics
1 answer:
emmainna [20.7K]3 years ago
5 0
400-5x greater than or equal to 250
-400. -400
———————————————————-
-5x greater than or equal to -250
——. ——
-5. -5
X is less than or equal to 50

*sorry no greater than and equal to key so...
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A rectangle has a length of 3x + 7 and a width of 2x. If the perimeter of the
Art [367]

Answer:

The length of the rectangle is 31.

Step-by-step explanation:

We have that the length (L) and width (W) are:

L = 3x + 7

W = 2x

The perimeter of the rectangle is given by:

P = 2W + 2L

94 = 2(2x + 3x + 7)

94 = 10x + 14

x = 8

Now, we can calculate the length of the rectangle:

L = 3x + 7 = 3*8 + 7 = 31        

         

Therefore, the length of the rectangle is 31 units.

I hope it helps you!                

7 0
2 years ago
I need to find the area of this
Olegator [25]

The answer is 130 inches squared

7 0
3 years ago
In 2014, the CDC estimated that the mean height for adult women in the U.S. was 64 inches with a standard deviation of 4 inches.
Vladimir79 [104]

Answer:

A. 16%

Step-by-step explanation:

Problems of normally distributed samples can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

\mu = 64, \sigma = 4

Which of the following gives the probability that a randomly selected woman has a height of greater than 68 inches?

This is 1 subtracted by the pvalue of Z when X = 68. So

Z = \frac{X - \mu}{\sigma}

Z = \frac{68 - 64}{4}

Z = 1

Z = 1 has a pvalue of 0.84.

1 - 0.84 = 0.16

So the correct answer is:

A. 16%

6 0
3 years ago
Give an example of an equation of a line that is parallel to y=3?
SOVA2 [1]

Answer:

y = 2

Step-by-step explanation:

Hope this helped

7 0
2 years ago
What is the value of x?<br> 11 (9 - 2x) = -(12x + 11)
fenix001 [56]
The value of x = 11.


Explanation: 99-22x=- 12x - 11


Collect like terms: -22x + 12x = -11 - 99



Divide both sides: -10x = -110 by -10
3 0
3 years ago
Read 2 more answers
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