How do i rearrange a(x-y)=b(z-x) to make x the subject?

Answers

Answer 1

Answer:

Answer:here's ur answer

Step-by-step explanation:

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Carlotta is making blue and orange necklaces in several lengths. For each necklace, her ratio of blue beads to orange beads is 3 to 2. How many orange beads will Carlotta need for a necklace of 60 beads?

Answers

Answer:

Carlotta needs 24 orange beads for her necklace.

Step-by-step explanation:

For each necklace, the ratio of blue beads to orange beads is 3 to 2. or 3:2

Total beads given to make a necklace is = 60

Let the number of orange beads be = x

The ratio is 2 orange beads out of 5 total beads

So, we can represent the ratio as:

$(2)/(5)=(x)/(60)$

$5x=120$

x=24

Hence, Carlotta needs 24 orange beads for her necklace.

Blue beads needed = $60-24=36$

We can also check the ratio for blue beads to orange beads:

$(36)/(24)$

Divide by 4, we get

$(9)/(6)$

Divide by 3, we get

$(3)/(2)$ ...... (the given ratio)

Therefore, Carlotta needs 24 orange beads for her necklace.

5x=60
x=12
2x=24

......

Gerry has two different part-time jobs, and he had work 20 hours per week at each job. He earns $8 per hour at one job. Which expression represents how much Gerry earned last week if he earns d dollars per hour at this other job?A- 20+20d
B- 160+ 20d
C- 40+ d
D- 160+ 8d
PLZZZZZZ ANSWER THX!!!!!!

Answers

The correct answer for the question that is being presented above is this one: "Last week's earnings = 40d."

Gerry has two different part-time jobs, and he had work 20 hours per week at each job. He earns $8 per hour at one job.

Last week's earnings = 20d + 20d
Last week's earnings = 40d.

20d+20Answer:

Step-by-step explanation:

What is the mean of 13,7,8 an 4

Answers

The mean is 8.

Thanks!

Find the slope of (0,1) and (2,7)

Answers

slope is $\frac { y_(2) - y_(1)}{ x_(2) - x_(1)}$

if we plug in your coordinates we get:
$\frac { y_(2) - y_(1)}{ x_(2) - x_(1)} \n \frac {7-1}{2-0} \n \frac {6}{2} \n 3$

Therefore, the slope of (0,1) and (2,7) is 3.

slope= y2-y1
x2-x1
So in this case 7-1=6
2-0=2
This makes the answer 3

Find tan A for the triangle below.
a. 2.5 b. 0.4 c. 2.67 d. 0.375

Answers

It's A. 2.5

It's not B that person is wrong.

Answer:

Step-by-step explanation:

Yeah

How do I work out the following simultaneous equations?x+3y=11 and 2x-y=11

Thank you, this is part of my half term homework and I really need to understand how to do this as soon as possible , thank you!

Answers

I'll show you two ways.

By substitution:

$x+3y=11\n2x-y=1\n\nx=11-3y\n2x-y=1\n\n2(11-3y)-y=1\n22-6y-y=1\n-7y=-21\ny=3\n\nx=11-3\cdot3\nx=11-9\nx=2\n\n\boxed{(x,y)=\left(2,3\right)}$

By elimination:

$x+3y=11\n 2x-y=1|\cdot 3\n\nx+3y=11\n\underline{6x-3y=3}\n7x=14\nx=2\n\n 2+3y=11\n3y=9\n y=3\n\n\boxed{(x,y)=\left(2,3\right)}$

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