All categories

3 years ago

I need some help on 9 and 10

Mathematics

1 answer:

Bogdan [553]3 years ago

7 0

Answer:

question 9

92/11 or 8.36

Step-by-step explanation:

angle on straight line is 180

:. 10x+1 + 12x-5 = 180

collect like terms

10x+12x = 180+5-1

22x = 184

divide both sides by the coefficient of x

22x/22 = 180/22

:. x = 180/22(to d lowest form= 92/11)

or 8.36

You might be interested in

When you multiply (3+6i)(3+7i) you get an answer of the form a+bi. Find a.

stiks02 [169]

(3 + 6i)(3 + 7i)

FOIL: First, Outside, Inside, and Last

3 x 3 = 9

3 x 7i = 21i

6i x 3 = 18i

6i x 71= 42i

9 + 21I + 18I + 42I = 9 + 81I

a = 9

B = 81I

5 0

4 years ago

The orginal price :$45.00;markdown: 20%

Finger [1]

$36 because 20% of 45 is 9 and 45 - 9 is 36!

3 0

4 years ago

Read 2 more answers

Martin will earn $20 per hour at a new job. During training he will earn $15 per hour. What percent of Martin’s regular hourly r

Contact [7]

Answer:

75%

Step-by-step explanation:

To find the percentage, you would divide the training hourly rate by Martin's regular hourly rate and multiply the quotient by 100

If martin normally earns $20 and he earns $15 during training, that means you would divide 15 by 20.

15/20=.75 and .75x100=75, so Martin earns 75% of his regular hourly rate during training

Please mark as brainliest ;)

4 0

2 years ago

PLEASE HELP I GIVE BRAINLIEST

bearhunter [10]

Slope-intercept form is:

$\sf y=mx+b$

Where 'm' is the slope and 'b' is the y-intercept.

Only the first equation is in slope-intercept form, so that crosses out the first and last options. It also crosses out the second option since the first equation is already in slope-intercept form.

For the third option, let's convert the second equation into slope-intercept and see for ourselves:

$\sf 3y+x=-3$

Subtract 'x' to both sides:

$\sf 3y=-x-3$

Divide 3 to both sides:

$\sf y=-\dfrac{1}{3}x-1$

So option C is correct.

8 0

4 years ago

Read 2 more answers

What is 8 3/4 - 7 1/2

lara31 [8.8K]

let's firstly convert the mixed fractions to improper fractions and then subtract, bearing in mind that the LCD of 4 and 2 is 4.

$\bf \stackrel{mixed}{8\frac{3}{4}}\implies \cfrac{8\cdot 4+3}{8}\implies \stackrel{improper}{\cfrac{35}{4}}~\hfill \stackrel{mixed}{7\frac{1}{2}}\implies \cfrac{7\cdot 2+1}{2}\implies \stackrel{improper}{\cfrac{15}{2}} \\\\[-0.35em] ~\dotfill\\\\ \cfrac{35}{4}-\cfrac{15}{2}\implies \stackrel{\textit{using the LCD of 4}}{\cfrac{(1)35~~-~~(2)15}{4}}\implies \cfrac{35-30}{4}\implies \cfrac{5}{4}$

6 0

3 years ago