2 years ago

How do I do #12? Please show all work. Please help!

Mathematics

1 answer:

hammer [34]2 years ago

5 0

You have the ratio set up correctly:

2x+2/12 = x+3/21

Now cross multiply:

2x+2 * 12 = x+3 * 21

Simplify:

24x + 24 = 21x + 63

Subtract 24 from each side:

24x = 21x + 39

Subtract 21x from each side:

3x = 39

Divide both sides by 3:

x = 39/3

x = 13

You might be interested in

14 POINTS! PLEASE HELP!!!!

aleksandr82 [10.1K]

Answer:

Do (8, -9) times 5 for both numbers

Step-by-step explanation:

3 0

3 years ago

Use square ABCD for this problem<br><br> IF AC=26,find BC.

katen-ka-za [31]

Answer:

x= $\sqrt{338}$

Step-by-step explanation:

$a^2+b^2=c^2$

$x^2+x^2=$ $26^2$

$2x^2=26^2$

$2x^2=676$

/2 /2

$x^2=338$

$\sqrt{x^2} =\sqrt{338}$

x= $\sqrt{338}$

8 0

2 years ago

Read 2 more answers

El valor del 0 en el número 60,152?

andreev551 [17]

The value of the 0 in the number 60,152 is the thousands place.

6 = ten thousand

0 = thousand

1 = hundreds

5 = tens

2 = ones

Hope helps!-Aparri

8 0

2 years ago

Find the principle that yields and interest of Rs.2240 at the rate of 10% p.a. in a years 6 months.

Vinvika [58]

Step-by-step explanation:

I=PRT/100

p=I/RT×100

p=2240/10×2×100

p=11200

5 0

2 years ago

If $525 is 40% of my take home pay for 1 week how much to I make in a week

Vlada [557]

Answer: 525=2/5 so 1/5=262.5 and multiply that by 3 is 787.5 2/5 plus 3/5 is 100% so you would make 787.5

Step-by-step explanation:

8 0

2 years ago

Read 2 more answers