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Elena-2011 [213]
3 years ago
11

Find the value of x, rounded to the nearest tenth. a) 2.7b) 4c) 3.8d) 2.9​

Mathematics
2 answers:
Gnom [1K]3 years ago
8 0

Answer:

b) 4

Step-by-step explanation:

A =?

B =?

A+B = 6

C=5

D = 3

C+D = 8

(A+B) xB = (C+D)xD

6 X= 8x3

6X = 24

X = 4

sertanlavr [38]3 years ago
4 0
I Think The answer is a I hope it helps My friend Message Me if I’m wrong and I’ll change My answer and fix it for you
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Igoryamba

Answer:

x=−4+√13 or x=−4−√13

Can I have brainliest? I need it for a challenge

Step-by-step explanation:

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Solve the percent equation for p%. is it zero?
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Yes it is zero because it has no number just a variable with a percentage sign
4 0
3 years ago
Solve the equation 6.8x + 9.3 = -9.4 + 3.4 (2-5x)
neonofarm [45]

Answer:

<h2>x = -0.5</h2>

Step-by-step explanation:

6.8x + 9.3 = -9.4 + 3.4 (2-5x)\qquad\text{multiply both sides by 10}\\\\68x+93=-94+34(2-5x)\qquad\text{use distributive property}\\\\68x+93=-94+(34)(2)+(34)(-5x)\\\\68x+93=-94+68-170x\\\\68x+93=-26-170x\qquad\text{subtract 93 from both sides}\\\\68x=-119-170x\qquad\text{add 170x to both sides}\\\\238x=-119\qquad\text{divide both sides by 238}\\\\x=-\dfrac{119}{238}\\\\\boxed{x=-\dfrac{1}{2}}

3 0
3 years ago
Read 2 more answers
Thomas and Pablo began arguing about who did better on their tests, but they couldn't decide who did better given that they took
Shkiper50 [21]

It should be noted that the z score for Thomas test grade is 0.237.

<h3>How to illustrate the information?</h3>

From the information, Thomas took a test in Social Studies and earned a 74.8 and there is the fact that all the students' test grades in the Social Studies class had a mean of 72.6 and a standard deviation of 9.3,

Therefore, the z score for Thomas test grade will be:

= Test score - Mean / Standard deviation

= 74.8 - 72.6 / 9.3

= 0.237.

Therefore, it should be noted that the z score for Thomas test grade is 0.237.

Learn more about standard deviation on:

brainly.com/question/12402189

#SPJ1

Thomas and Pablo began arguing about who did better on their tests, but they couldn't decide who did better given that they took different tests. Thomas took a test in Social Studies and earned a 74.8, and Pablo took a test in Science and earned a 64.1. Use the fact that all the students' test grades in the Social Studies class had a mean of 72.6 and a standard deviation of 9.3, and all the students' test grades in Science had a mean of 61.1 and a standard deviation of 9.8 to answer the following questions.

Calculate the z score for Thomas test grade.

4 0
1 year ago
Monica has a 24-inch square frame. There are 4 equal sides. She paints 3/4 of one side of the frame blue. What fraction of the f
IgorC [24]

Answer:

3/16

Step-by-step explanation:

Monica has a 24-inch square frame.

There are 4 equal sides.

Hence, length of each side=24/4 inch

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She paints 3/4 of one side of the frame blue.

i.e. she paints   \dfrac{3}{4}\times 6 inch

Total part to be painted=24 inch

Hence, fraction of the frame Monica painted blue is:

\dfrac{3\times 6}{4\times 24}\\ \\= \dfrac{3}{16}

4 0
3 years ago
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