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4 years ago

What is 7 - 4 = 5x - 13

Mathematics

1 answer:

Oduvanchick [21]4 years ago

7 0

Answer:

x=16/5

Step-by-step explanation:

7-4=5x-13

3=5x-13

+13. +13

16=5x

16/5 = x

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PLEASE HELP ME ANSWER THESE !!!

Evgen [1.6K]

Answer:

1)9 2)18 3)9. 4)4. 5)carpeting

Step-by-step explanation:

1) divide 63 by 7 = 9

2)multiply 54 by 2 = 108 total weight of the boxes then divide 108 by 6 to get 18

3) 75 -30 to get remaining amount which is 45 then divide by 5 to get how much he will pay each month which is 9

4 24- 12= 12 the remaining for the 3 and divide by 3 to get 4

5) multiply 6 * 9 which is $54 which is cheaper than the $81

5 0

3 years ago

What is the equation of the line that passes through the point of intersection of the lines y = 2x − 5 and y = −x + 1, and is al

castortr0y [4]

Answer:

$y = \frac{1}{2}x - 2$

Step-by-step explanation:

Given lines,

y = 2x - 5,

y = -x + 1

Subtracting these two equations,

0 = 3x - 6

$\implies 3x = 6$

$\implies x = \frac{6}{3}=2$

By first equation,

$y=2(2) -5=4-5 = -1$

Thus, point of intersecting would be (2, -1).

Now, the equation of a line is y = mx + c,

Where,

m = slope of the line,

So, the slope of the line $y=\frac{1}{2}x+4$ is 1/2.

∵ two parallel lines have same slope.

Hence,

Equation of the parallel line passes through (2, -1),

$y+1=\frac{1}{2}(x-2)$

$y+1=\frac{1}{2}x - 1$

$y = \frac{1}{2}x - 2$

8 0

4 years ago

Please help asap <3

sladkih [1.3K]

Answer:

think it's A (0,6) if not then idk maybe D

6 0

4 years ago

Read 2 more answers

3x+30+x=10+2x+5x+2 <br> i need help fast

kupik [55]

Answer:

x=6

Step-by-step explanation:

Group Like Terms:

3x+x+30=10+2x+5x+2

Add similar elements 3x+x=4x:

4x+30=10+2x+5x+2

Add similar elements 2x+5x=7x:

4x+30=10+7x+2

Group like terms:

4x+30=7x+10+2

Add the numbers 10+2=12:

4x+30=7x+12

Subtract 30 from both sides:

4x+30-30=7x+12-30

Simplify:

4x=7x-18

Subtract 7x from both sides:

4x-7x=7x-18-7x

Simplify:

-3x=-18

Divide both sides by -3:

$\frac{-3x}{-3} =\frac{-18}{-3}$

Simplify:

x=6

Hence, the correct answer is 6

4 0

2 years ago

What percent of 21 is 105?

Natasha_Volkova [10]

Answer:

20%

Step-by-step explanation:

21/ 105

= 0.2 x 100

20%

6 0

3 years ago

Read 2 more answers