2 years ago

When Marla rounded 19.95 to the nearest tenth shi found the number changed to 20 is this correct explain

1 answer:

7 0

Yes this is correct..the rule is: to round up if the number is over 50, round down if the answer is below fifty, like 44...

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Solve. 14/n+7=10/n-4 N=5.25 N=3.5 N=31.5 N=30

Ilya [14]

Answer:

n=31.5

Step-by-step explanation:

The given question is:

$\frac{14}{n+7}=\frac{10}{n-4}$

Cross multiply to get:

$14(n-4)=10(n+7)$

Expand the parenthesis:

$14n-56=10n+70$

Group similar terms:

$14n-10n=70+56$

Combine the like terms

$4n=126$

Divide both sides by 4

$n=\frac{126}{4}$

n=31.5

5 0

2 years ago

Plzzzzzzzzzzzzzzzz asap help

Mashcka [7]

Answer:

2.4

Step-by-step explanation:

Okay so first what you would do is find the common difference we can find this by doing 5/3 which is 1.66666666667 (rounded to 1.7)

Then what we do is 4 divided by 1.66666666667 which is 2.4

6 0

2 years ago

The rectangle is 20 by 16 and the scale factor is 0.25. What are the dimensions of the reduced rectangle?

antoniya [11.8K]

Answer:

1,280

The dimensions are 5 by 4

Step-by-step explanation:

You multiply 20 and 16 then, divide 0.25 then you get 1,280

4 0

2 years ago

The value of a treadmill bought new for $1000 decreases 5% each year. Use a graph to predict the value of the treadmill in 5 yea

Georgia [21]

The formula is
V (t)=V0 (1-r)^t
V (t)?
V0 1000
R 0.05
T 5 years

V (5)=1,000×(1−0.05)^(5)=773.78

6 0

2 years ago

Shannon manages a crew of painters. a homeowner paid the crew $560 to paint a garage. shannon received $164 of the money, and sh

natali 33 [55]

560 - 164 = 396
396 / 3 = 132....each of the 3 crew members received $ 132

4 0

2 years ago

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