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brilliants [131]
2 years ago
10

7x+2-4x=23 solve for x PLEASE HELP ME PLEASE SHOW THE WORK TYY

Mathematics
2 answers:
aniked [119]2 years ago
6 0

Answer:

7

Step-by-step explanation:

combine like variables

(7x-4x) +2 = 23

3x+2=23

subtract 2 from both sides

3x(-2+2)= (23-2)

3x=21

divide both sides by 3

3x/3= 21/3

x=7

dangina [55]2 years ago
3 0

Answer:

7x+2-4x=23,,,3x+2=23,,,3x=25,,,x=25/3

Step-by-step explanation:

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Which of the following expression is equivalent to the expression below?
Nonamiya [84]

Use the distributive property on the given expression.

4(2x + 11) = 4 * 2x + 4 * 11 = 8x + 44

Only choice C shows the correct expression.

Answer: C. 8x + 44

4 0
3 years ago
Round each number to the nearest ten. what is the best estimate for the answer 303.55
bixtya [17]
Answer=303.6

When rounding numbers to the nearest tenth, we need to look to the number in the hundredths place.

303.55

If the number is 5 or greater, we round up. If the number is 4 or less, we round down. The number IS 5, so we round up.

303.55 becomes 303.6
3 0
3 years ago
The diameters of ball bearings are distributed normally. The mean diameter is 107 millimeters and the population standard deviat
tensa zangetsu [6.8K]

Answer:

0.6710

Step-by-step explanation:

The diameters of ball bearings are distributed normally. The mean diameter is 107 millimeters and the population standard deviation is 5 millimeters.

Find the probability that the diameter of a selected bearing is between 104 and 115 millimeters. Round your answer to four decimal places.

We solve using z score formula

z = (x-μ)/σ, where

x is the raw score

μ is the population mean = 107 mm

σ is the population standard deviation = 5 mm

For x = 104 mm

z = 104 - 107/5

z = -0.6

Probability value from Z-Table:

P(x = 104) = 0.27425

For x = 115 mm

z = 115 - 107/5

z = 1.6

Probability value from Z-Table:

P(x = 115) = 0.9452

The probability that the diameter of a selected bearing is between 104 and 115 millimeters is calculated as:

P(x = 115) - P(x = 104)

0.9452 - 0.27425

= 0.67095

Approximately = 0.6710

8 0
2 years ago
3(c+5)=12. Distributive property
avanturin [10]

Answer:

c = -1

Step-by-step explanation:

3(c+5)=12

3 × c = 3c

3 × 5 = 15

3c + 15 = 12

<u>      - 15   -15</u>

   3c = -3

c = -3 ÷ 3 = -1

Check:

3(-1+5)=12

-3 + 15 = 12

6 0
3 years ago
Read 2 more answers
The population in 1993 was 11,211 people. The annual increase of the population is 4.18%. What is the population of Cypress in 2
RoseWind [281]

Answer:

  Based on this information the population in 2019 is <u>23,395</u>. This is because 4.18% of 11,211 is 468.62, times 26(amount of years) is 12,184. After that you would just add the original population(11,211).

Step-by-step explanation:

3 0
3 years ago
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