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Eddi Din [679]
3 years ago
12

8x - 12 = 15x - 4x

Mathematics
2 answers:
S_A_V [24]3 years ago
7 0

Answer: Isolate the variable by dividing each side by factors that don't contain the variable. x=−4

Step

Alexxx [7]3 years ago
6 0

Answer:

x= -4

Step-by-step explanation:

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PLEASE HELP ME <br>2x+45=90<br>​
arsen [322]

Answer:

x = 45/2 = 22.5 cm

Step-by-step explanation:

2x + 45 = 90

2x = 90- 45= 45

2x = 45

x = 45/2 = 22.5 cm

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8 0
3 years ago
The entire question is un the picture
n200080 [17]
A) 6x -5y = 5
B) 3x + 5y = 4
Adding the equations:
9x = 9
x = 1

A) 6*1 -5y = 5
A) 6 - 5 = 5y
A) 5y = 1
y = 1/5 = .2


7 0
3 years ago
A videotape store has an average weekly gross of $1,158 with a standard deviation of $120. Let x be the store's gross during a r
statuscvo [17]

Answer:

The number of standard deviations from $1,158 to $1,360 is 1.68.

Step-by-step explanation:

Problems of normally distributed samples are 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 = 1158, \sigma = 120

The number of standard deviations from $1,158 to $1,360 is:

This is Z when X = 1360. So

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

Z = \frac{1360 - 1158}{120}

Z = 1.68

The number of standard deviations from $1,158 to $1,360 is 1.68.

3 0
2 years ago
Draw Three triangles One equilateral one isosceles and one scalene label Each and explain how you classified each triangle
Fantom [35]
Here is a picture of each.

Here are the definitions of each:
1. Equilateral- this triangle has side lengths that are all the same (congruent).
2. Isosceles-this triangle has exactly 2 sides that are the same length(congruent).
3. Scalene- this triangle has no sides that are the same length.

8 0
3 years ago
John’s batting average is 0.278. What is his batting average rounded to the nearest ​hundredth​?
sergiy2304 [10]

Answer:

0.28 easy

Step-by-step explanation:

4 0
3 years ago
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