All categories

3 years ago

The difference between 10 and three times a number is 31.

Mathematics

2 answers:

vladimir1956 [14]3 years ago

7 0

10 -3h = 31

minus both sides by 10 to get:
-3h =21

divide both sides by -3 is:

h= -7

Gennadij [26K]3 years ago

6 0

Let's write an equation describing this relationship:

let's call the number (n)
<em>10 - 3n = 31
</em>now we solve for 31
subtract 10 on both sides
10 - 3n - 10 = 31 - 10
-3n = 21
now divide by 3 on both sides
and we get
n = -7

You might be interested in

Help me quick please.

Rudiy27

Answer:

No, the answer is not reasonable. It should be about 1 foot

Step-by-step explanation:

we know that

The correct dimensions are

Gina had two pieces of ribbon. One was 5/8 foot long and the other was 1/4 foot long

Sum the length of both pieces

$\frac{5}{8}+\frac{1}{4}=\frac{5+2}{8}=\frac{7}{8}\ ft$

$\frac{7}{8}\ ft< 1\ ft$

therefore

No, the answer is not reasonable. It should be about 1 foot

3 0

4 years ago

Whats the answer to 144140÷2

Naddika [18.5K]

The answer is 72,070

hope you got it rigth

4 0

4 years ago

What is the solution to the following system?

iogann1982 [59]

9514 1404 393

Answer:

4. (4, 5)

Step-by-step explanation:

Use substitution to put the value for y in the second equation.

-3x +4(5) = 8

-3x = -12 . . . . . . . subtract 20

x = 4 . . . . . . . . . . divide by -3

The solution is (x, y) = (4, 5).

3 0

3 years ago

What is true of the data in the dot plot? Check all that apply.

Archy [21]

Answer:

B, D,

Step-by-step explanation:

0 has 3 dots
1 has 8 dots
2 has 7 dots
3 has 0 dots
4 has 4 dots
5 has 1 dot

Total number of dots: 23 =>

The center is 2 Wrong

The center is 1.5. True

There are no gaps. Wrong

It has a cluster at 0, 1, and 2. True

Hope it will find you well.

4 0

3 years ago

Read 2 more answers

cSuppose you are standing such that a 45-foot tree is directly between you and the sun. If you are standing 200 feet away from t

beks73 [17]

Answer:

you could stand at 5.0 ft and still be completely in the shadow of the tree

Step-by-step explanation:

From the diagram attached below;

We consider;

$\overline {BC}$ to be the height of the tree and $\overline {DE}$ to be the height of how tall you could be and still be completely in the shadow of the tree.