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Neko [114]
3 years ago
6

MATH 8TH GRADE PLS HELP ME​

Mathematics
1 answer:
Oxana [17]3 years ago
7 0

Answer:

X= 2

Step-by-step explanation:

<u><em>7x</em></u> + (-4) + <u><em>x</em></u> = 12

8x + (-4) = 12

       +4     +4          ( -4 turns to 0)

8x = 16

\frac{8}{8}       \frac{16}{8}

<h2>x = 2</h2>
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I will mark brainliest please help me​
Lapatulllka [165]

Answer:

Formula for mean in grouped data

= Zfx/ Zf

f = sum of the number of mice

= 35

Frequency = 39 + x

Mean = 7

Fx = 20 + 78 + 112 + 8x + 54

= 264 + 8x

7 = 264 + 8x/ 39 + x

7(39+x) = 264 + 8x

After solving you will get

x = 9

Hope this helps.

4 0
3 years ago
Nicholas is currently in eighth grade and intends to attend a state college when he finishes high school. Nicholas’s parents cur
Juliette [100K]

Answer:

20,814.00

これがお役に立てば幸いです。また、良い一日をお過ごしください

7 0
3 years ago
Read 2 more answers
Lisa's test grades are 79, 89 and 90
Vaselesa [24]

Answer:

<u>94</u>

Step-by-step explanation:

Equating the mean to the scores :

  • 88 = 79 + 89 + 90 + x / 4
  • 352 = 258 + x
  • x = <u>94</u>
6 0
2 years ago
Read 2 more answers
The slope from 2 points
Eddi Din [679]
The slope would be 2/3!
8 0
3 years ago
Read 2 more answers
Solve for x I need help on this question
AlexFokin [52]

Answer:

x\approx7.8

Step-by-step explanation:

In relation to the given angle, we are given the triangle's opposite side and hypotenuse. Therefore, we use the sine function to set up a proportion and solve for the opposite side:

sin(\theta)=\frac{opposite}{hypotenuse}

sin(23^\circ)=\frac{x}{20}

20sin(23^\circ)=x

x=20sin(23^\circ)

x\approx7.8

Therefore, the length of the opposite side is about 7.8 units

3 0
3 years ago
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