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3 years ago

I need help understanding a solution

Mathematics

2 answers:

ryzh [129]3 years ago

8 0

Answer:

What they mean is if you substitute the value given for x into the equation given, is the math statement true.

Step-by-step explanation:

1) Is x = -3 a solution to 6x + 4 = -12?

6(-3) + 4 = -18 + 4 = - 14, so no, for number 1, x = -3 is not a solution to 6x + 4 = -12

Make sense?

LMK if you need me to run the rest of them with you.

ch4aika [34]3 years ago

8 0

Answer:

1. No equals -14

2. No equals 14

3. No equals -25

4. Yes

5. Yes

6. No equals 1

7. No equals -29

8. Yes

9. Yes

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Slove for all the possible values of x. √21-4x=x-6

Alona [7]

Answer:

x=2.116

Step-by-step explanation:

$\sqrt{21}$ -4x=x-6

4.58-4x-x=-6

-5x=-6-4.58

-5x=-10.58

x=2.116

4 0

3 years ago

A shoe company found that 4.25% of the production is defective. The company

nlexa [21]

1190 pairs of shoes are defective

Solution:

Given that shoe company found that 4.25% of the production is defective

The company made 28,000 pairs of shoes

To find: Number of pairs of defective shoes

From given information, 4.25% of the production is defective which means 4.25% of 28,000 pairs of shoes

Defective shoes = 4.25% of 28,000

Defective shoes $= \frac{4.25}{100} \times 28000$

Defective shoes $= 4.25 \times 280 = 1190$

Thus 1190 pairs of shoes were defective

6 0

2 years ago

46. Order these numbers from least to greatest: 1/2, 0.4, 1/3, 1/5

e-lub [12.9K]

Answer:

1/5, 1/3, 0.4, 1/2

Step-by-step explanation:

1/5 = 0.2

1/3 = 0.33

1/2 = 0.5

4 0

2 years ago

Need some help with these 2 math questions, They are related so best to finish one then work on the bisect. Thank you.

ElenaW [278]

Answer:

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4 0

2 years ago

Read 2 more answers

Al can wash a car in 60 minutes, and bill can wash a car in 30 minutes. cathy can wash a car in 20 minutes. how long, in minutes

choli [55]

B) 36

To figure this out you need to average the numbers. To average them you add them all up and divide by how many are there.
(60+30+20)/3
(90+20)/3
110/3
36

3 0

3 years ago