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Murrr4er [49]
3 years ago
13

Which number is a solution to

Mathematics
1 answer:
charle [14.2K]3 years ago
3 0

Answer:

B. -10

Step-by-step explanation:

4x + 5 > 7x + 35 \\  - 3x > 30 \\ 3x <  - 30 \\ x <  -  \frac{30}{3}  \\ x <  - 10

The first one has got a result different from -12 or -10

You might be interested in
If y varies directly with x when y=1/3 and x = 12, find x if y is 4.
Nikitich [7]

Answer:

x = 144

Step-by-step explanation:

y α x

we introduce a constant 'k' when changing from α to =.

i.e y = kx

y = ⅓ when x = 12

Meaning, ⅓ = k * 12

⅓ = 12k

k = ⅓ ÷ 12

k = 1/36

If y = 4, x = ?

using the equation y = kx

4 = (1/36)x

x = 4 ÷ (1/36)

x = 4 * 36

x = 144

6 0
3 years ago
Como eu divido 3/4 por 20?
Juli2301 [7.4K]
Você pode, mas não receberá um bom número limpo. Eu recomendo que você faça divisão longa
3 0
3 years ago
ASAP! GIVING BRAINLIEST! Please read the question THEN answer correctly! No guessing. Show your work or give an explaination.
MrRa [10]

Answer:

C 0 solutions

Step-by-step explanation:

8x+47 = 8(x+5)

Distribute

8x+47 = 8x+40

Subtract 8x from each side

47 = 40

This is never true so there are no solutions

8 0
3 years ago
Read 2 more answers
What is the area of this trapezoid? Enter your answer in the box.​
mezya [45]

Answer:

352 ft²

Step-by-step explanation:

The formula for the area of a trapezoid is A=(\frac{b_1+b_2}{2})h where b_1 and b_2 are the bases of the trapezoid and h is the height, thus:

A=(\frac{b_1+b_2}{2})h\\\\A=(\frac{13+31}{2})(16)\\\\A=(\frac{44}{2})(16)\\ \\A=(22)(16)\\\\A=352

This means that the area of the trapezoid is 352 ft².

5 0
2 years ago
14. Given: 5x + 4y = 24, x + 7y= 11; Prove: y= 1<br> Statements<br> reasons
Semenov [28]

Answer:

Step-by-step explanation:

We can use the process of elimination as

5x + 4y = 24

5(x + 7y = 11) —>          5x + 35y = 55

5x + 4y = 24

-(5x + 35y = 55)

—————————

-31y = -31

-31y/-31 = -31/-31

y=1

4 0
3 years ago
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