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Dahasolnce [82]
3 years ago
11

Which answer shows the proper use of the distributive property?

Mathematics
2 answers:
Sergio039 [100]3 years ago
7 0

Answer:

c is showing the proper  distributive property

Step-by-step explanation:

GarryVolchara [31]3 years ago
6 0
C shows correct distribution
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Four friends bought tickets to the school play. If it cost then a total of $28, Which equation could be used to find how much ea
amm1812

Answer:

4x = $28

Step-by-step explanation:

5 0
3 years ago
Which is the better by 3 pounds for $8.31 or 5 pounds for $12.95 explain
sleet_krkn [62]
Do $8.31/3 and $12.95/5 and that will give you a price per pound and whichever is cheaper would be a better deal.
6 0
3 years ago
Jose equation is -4(x+2) = 8x+16 says to jill “I can solve for the variable in this equation in at least 4 different ways
erastovalidia [21]

Answer:

that is step 1 and step 2 and step3

step 4

Let's solve your equation step-by-step.

−4(x+2)=8x+16

Step 1: Simplify both sides of the equation.

−4(x+2)=8x+16

(−4)(x)+(−4)(2)=8x+16(Distribute)

−4x+−8=8x+16

−4x−8=8x+16

Step 2: Subtract 8x from both sides.

−4x−8−8x=8x+16−8x

−12x−8=16

Step 3: Add 8 to both sides.

−12x−8+8=16+8

−12x=24

Step 4: Divide both sides by -12.

−12x

−12

=

24

−12

x=−2

Answer:

x=−2

6 0
3 years ago
Suppose that replacement times for washing machines are normally distributed with a mean of 9.3 years and a standard deviation o
Harlamova29_29 [7]

Answer:

The probability is 0.0643

Step-by-step explanation:

* Lets revise some definition to solve the problem

- The standard deviation of the distribution of sample means is called σM

- σM = σ/√n , where σ is the standard deviation and n is the sample size

- z-score = (M - μ)/σM, where M is the mean of the sample , μ is the mean

 of the population  

* Lets solve the problem

- The mean of the washing machine is 9.3 years

∴ μ = 9.3

- The standard deviation is 1.1 years

∴ σ = 1.1

- There are 70 washing machines randomly selected

∴ n = 70

- The mean replacement time less than 9.1 years

∴ M = 9.1

- Lets calculate z-score

∵ σM = σ/√n

∴ σM = 1.1/√70 = 0.1315

∵ z-score = (M - μ)/σM

∴ z-score = (9.1 - 9.3)/0.1315 = - 1.5209

- Use the normal distribution table of z to find P(z < -1.5209)

∴ P(z < -1.5209) = 0.06426

∵ P(M < 9.1) = P(z < -1.5209)

∴ P(M < 9.1) = 0.0643

* The probability is 0.0643

5 0
3 years ago
carla's vacation will cost at least $718. she saves $85 each week. she already has $463. how many weeks,w,does she have to save
aleksklad [387]
She already has 463 that's a set amount she started at an her start amount won't change an she's wanting 718 an she is savin 85 a week so every week she gets more money so that number changes so ur equation is 85W+463=718 then u do a two step equation
4 0
3 years ago
Read 2 more answers
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