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2 years ago

Steps of 5(x+2)=24-2x

Mathematics

2 answers:

Oxana [17]2 years ago

6 0

Answer:

Step-by-step explanation:

It just is trust

Fittoniya [83]2 years ago

6 0

The correct answer is D

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Please help out and if you know help me show work ??

Ghella [55]

Answer: 14

Step-by-step explanation:

Consecutive even numbers would be {2, 4, 6, 8, 10, ...}

Let x represent the smallest number, then x + 2 is the middle number and x + 4 is the largest number.

1st number: x

2nd number: x + 2

3rd number: x + 4

1st number + 2nd number + 3rd number = Sum

(x) + (x + 2) + (x + 4) = 48

3x + 6 = 48

3x = 42

x = 14

1st number: x ⇒ x = 14

2nd number: x + 2 ⇒ 14 + 2 = 16

3rd number: x + 4 ⇒ 14 + 4 = 18

Check:

14 + 16 + 18 = 48 $\checkmark$

7 0

2 years ago

A software company decided to conduct a survey on customer satisfaction. Out of 564 customers who participated in the online sur

nikklg [1K]

Answer:

$z=\frac{0.0904 -0.1}{\sqrt{\frac{0.1(1-0.1)}{564}}}=-0.760 \approx -0.8$

$p_v =2*P(z$

Step-by-step explanation:

Information given

n=564 represent the sample selected

X=51 represent the number of people who rated the overall services as poor

$\hat p=\frac{51}{564}=0.0904$ estimated proportion of people who rated the overall services as poor

$p_o=0.1$ is the value to compare

z would represent the statistic

Hypothsis to analyze

We want to analyze if the proportion of customers who would rate the overall car rental services as poor is 0.1, so then the system of hypothesis are:

Null hypothesis: $p=0.1$

Alternative hypothesis: $p \neq 0.1$

The statistic for a one z test for a proportion is given by:

$z=\frac{\hat p -p_o}{\sqrt{\frac{p_o (1-p_o)}{n}}}$ (1)

Replacing the info given we got:

$z=\frac{0.0904 -0.1}{\sqrt{\frac{0.1(1-0.1)}{564}}}=-0.760 \approx -0.8$

And the p value since we have a bilateral test is given b:

$p_v =2*P(z$

3 0

3 years ago

-6x - y = 27 3x + 8y = 9

attashe74 [19]

Answer:

-6x - y = 27 = x= −1 /6 y+ −9 /2

3x + 8y = 9 = x= −8 /3 y+3

Step-by-step explanation:

be more specific and space out the equations next time please, i didn't know what you wanted me to do. but i solved them.

brainliest please?

8 0

2 years ago

PLEASE HELP!!! GEOMETRY please

Cloud [144]

Nothing else is given, so for the two triangles to be congruent, the only possible proof is the ASA theorem.
first pairs of angles: 2x+7=x+21 => x=14
second pairs of angles: 8y-4=4y+28 =>y=8
The two triangles share the same side PR
Based on the Angle-Side-Angle Triangle Congruence theorem, these two triangles are congruent with x=14, y=8
(2x+7) +(8y-4) +Q=180 =>85

4 0

3 years ago

Moonshine Problem: How many gallons of 20% moonshine and how many gallons of 30% moonshine have to be mixed together to make 100

Sindrei [870]

Answer:

50 gallons 20%

50 gallons 30%

Step-by-step explanation:

If x is gallons of 20% moonshine, and y is gallons of 30% moonshine, then:

x + y = 100

0.20x + 0.30y = 0.25(100)

Solve the system of equations using substitution or elimination. Using substitution:

0.20x + 0.30(100 − x) = 0.25(100)

0.20x + 30 − 0.30x = 25

5 = 0.10x

x = 50

y = 50

3 0

3 years ago