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3 years ago

5r+8=2r solve the equation for r

Mathematics

1 answer:

lianna [129]3 years ago

8 0

I think it is −2.666666666666667 but i’m not sure!

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Choose the answer that gives both the correct solution and the correct graph.

Anna007 [38]

Answer:

A is the correct answer

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8 0

3 years ago

How do you write a sentence about comparing the values of the nines in the number 199,204

Margarita [4]

Answer:

Step-by-step explanation:

The first 9 stands for 90,000 and the second for 9 000 so the first 9 is worth

90,000 / 9,000 equals 10 times the second one.

8 0

3 years ago

PLEASE HELP WILL MARK BRAINLIEST!!

Maru [420]

Answer:

V ≈ 21941.33 yd.

Step-by-step explanation:

I just calculated each side with the help of my trusty calculator! Hope this helped! Comment if you are still confused!

3 0

3 years ago

Last month a museum received €21000 in donations.After taking off the cost of monthly bills,,the museum spent the remaining mone

Rainbow [258]

Answer:

$13,500.

Step-by-step explanation:

Let x represent money spent on monthly bills.

We have been given that last month a museum received €21000 in donations. The ratio of bills to donations was 5:14.

We will use proportions to solve our given problem.

$\frac{\text{Bills}}{\text{Donations}}=\frac{5}{14}$

$\frac{x}{21000}=\frac{5}{14}$

$\frac{x}{21000}*21000=\frac{5}{14}*21000$

$x=5*1500$

$x=7500$

Now, we will subtract $7500 from donations to find the amount spent on new exhibitions as:

$\$21,000-\$7500=\$13,500$

Therefore, they spent $13,500 on new exhibitions.

6 0

3 years ago

Find the value of each determinant

Ksenya-84 [330]

Answer:

−4304

Step-by-step explanation:

1. The given determinant is :

$\begin{vmatrix}7 &31 \\ 142& 14\end{vmatrix}$

We need to find its determinant . It can be solved as follows :

$\begin{vmatrix}7 &31 \\ 142& 14\end{vmatrix}=7(14)-142(31)\\\\=-4304$

So, the value of determinant is equal to −4304.

6 0

2 years ago