3 years ago

The ratio of Chris and Dom's ages is

Mathematics

1 answer:

Paraphin [41]3 years ago

6 0

<h3>♫ - - - - - - - - - - - - - - - ~Hello There!~ - - - - - - - - - - - - - - - ♫</h3>

➷ 3x + 7 / 4x + 7 = 4/5

Cross multiply:

5(3x + 7) = 4(4x + 7)

Expand:

15x + 35 = 16x + 28

Subtract 28 from both sides:

15x + 7 = 16x

Subtract 15x from both sides:

x = 7

4(7) = 28

Dom is 28 years old

➶ Hope This Helps You!

➶ Good Luck (:

➶ Have A Great Day ^-^

↬ ʜᴀɴɴᴀʜ ♡

You might be interested in

Plz help thankssssssssssssssss

Kisachek [45]

what do you need help with

5 0

3 years ago

Yesterday, I ran less than 5 kilometers but more than. 1,200 meters. How far could I have run?

taurus [48]

Less then 5 kilometers and more then 1,200 meters obv

7 0

2 years ago

25% of what nember is 19

attashe74 [19]

You would do 0.25x (x is the unknown total number)=19. It is because of is a multiply sign, so 0.25*x=19. Divide both sides by 0.25 and you get 76 as your answer.

6 0

3 years ago

Read 2 more answers

Factor completely<br> 3x ^2 + 2xy - y ^2

NemiM [27]

3x2+2xy−y2

=(3x−y)(x+y)

Answer:

(3x−y)(x+y)

5 0

2 years ago

Read 2 more answers

The demand function of blankets at COMESA is given by the equation P=60-2Q find the units of good Q ,when P=12 and use integrati

lions [1.4K]

Answer:

a. 24

b. 864

Step-by-step explanation:

a. The demand function is:

P = 60 - 2Q

When P = 12:

12 = 60 - 2Q

2Q = 60 - 12

2Q = 48

Q = 48/2 = 24

b. Consumer surplus is given as the integral of Demand function:

$CS = \int\limits {[P(Q) - (p)(Q)] \ dQ\\$

This implies that:

$CS = \int\limits {60 - 2Q} \, dQ\\\\CS = 60Q - Q^2\\\\CS = (60 * 24) - 24^2\\\\CS = 1440 - 576\\\\CS = 864$

7 0

3 years ago