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4 years ago

If 8 is subtracted from 7 times a number the result is 34

Mathematics

1 answer:

djverab [1.8K]4 years ago

5 0

7x - 8 = 34

Solving:

7x = 34 + 8
7x = 42
x = 6

Hope this helps!

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Find the equation of the line through the point (7,-6) with the slope -15/13

gayaneshka [121]

Answer:

y + 6 = -15/13(x-7)

Step-by-step explanation:

Substitute m= -15/13 and the point (7,-6) into the point slope form.

y --6 = -15/13 (x - 7)

y + 6 = -15/13(x-7)

3 0

4 years ago

Which expression is equivalent to 7u+4u?

Marat540 [252]

Answer:

11u

Step-by-step explanation:

Add 7u and 4u

Hope this helps! :)

3 0

3 years ago

Solve each two-step inequality and graph the solution set on a number line -17 < 3-5x

lawyer [7]

Answer:

$x < 4$

Step-by-step explanation:

Given the following question:

$-17 < 3-5x$

In order to find the answer, we will solve the inequality as if it is a regular two-step equation and then we will plot the answer on the number line.

$-17 < 3-5x$
$-17 < 3-5x=3-5x > -17$
$3-5x > -17$
$3-3=0$
$-17--3=-20$
$5x=-20$
$\frac{5x}{5}=x$
$20\div5=-4$
$x < 4$

<u>When plotting inequalities on the number line keep a few things in mind:
</u>
. 4 is greater than x, so the line will go towards the opposite direction of four
. < is a greater sign, it's not a greater or equal to sign (≤) which means it will be an open dot.

Hope this helps.

3 0

2 years ago

A window washer clean 38 windows in 2 hours at this rate how many windows did he clean in 7 hours?

SashulF [63]

Ok you wash 38 in 2 hours
now multiply 38 by 3 and that's the total you wash in 6 hours
( the 3 is the amount of 2 hour shifts total)
finally divide 38 by 2 and then add that to the total you wash in 6 hours

5 0

3 years ago

Read 2 more answers

3. Given a right triangle, find the measures of all of the angles, in degrees, if one angle is a right angle and the measure of

Gnom [1K]

Answer:

90 degree

Step-by-step explanation:

Let represent the measure of the third angle. Then, − can represent the measure of the second angle. The

sum of the two angles in the right triangle will be °.

− + =

− =

− + = +

The third angle is and therefore measures °. Replacing with in − gives () − = − = .

Therefore, the measure of the second angle is °. The measure of the third angle is °.

5 0

3 years ago