2 years ago

4x − y = -7 can some one help me

Mathematics

1 answer:

Flauer [41]2 years ago

7 0

Answer:

the question is not understandable

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How to do this question plz answer my question step by step plzz plz plz plz

never [62]

Answer:

40°, 95°, 105°, and 160°

Step-by-step explanation:

Let the smallest angle be x.

Measures of the 3 angles can be expressed as:

$x + 55$

$x + 65$

$x + 120$

The sum of all angles in a quadrilateral = 360°.

Therefore, $(x + 55) + (x + 65) + (x + 120) = 360$

Solve for x

$x + 55 + x + 65 + x + 120 = 360$

$3x + 240 = 360$

$3x + 240 - 240 = 360 - 240$

$3x = 120$

$\frac{3x}{3} = \frac{120}{3}$

$x = 40$

The smallest angle = 40°

Plug in the value of x in the earlier stated expressions to find the measure of the other angles:

$x + 55 = 40 + 55 = 95$

$x + 65 = 40 + 65 = 105$

$x + 120 = 40 + 120 = 160$

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At a table Tennis tournament, two games went on for a total of 32 minutes long. One game took 12 minutes longer than the other.

Kaylis [27]

The answer is 44 minutes

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2 years ago

Fifty four percent of 150 students polled at a local university want a new fitness center built.

Murljashka [212]

The population 150 students

The sample is 54% of students
I’m not sure but I hope this helps!

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2 years ago

what is the equation subtracting 7 from the product of 4 and a number results in the number added to 29

vitfil [10]

That would be:-

4x - 7 = x + 29

the solution:-

3x = 29 + 7

3x = 36

x = 12

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2 years ago

What is 11% of 650 please?

Debora [2.8K]

578.5 is your answer.

take 650 x .11 and you get 71.5.
take 650 - 71.5 = 578.5

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3 years ago