Ask question

Ask question

All categories

3 years ago

10

The sum of two numbers is $30$. the difference of twice the larger number and three times the smaller number is $5$. what is the

positive difference between the two numbers?

1 answer:

Shtirlitz [24]3 years ago

8 0

X+y=30
2x-3y=5

y=30-x

2x-3(30-x)=30
2x-90+3x=30
5x=120
x=24

y=30-x
y=30-24
y=6

The positive difference between the two numbers is 18.

You might be interested in

Raphael went to the store and bought 2 1/2 pounds of chicken for $9.00. What was the cost per pound of the chicken? Round your a

Anon25 [30]

Answer:

3 3/5

Step-by-step explanation:

Raphel bought 2 1/2 pounds of chicken for $9

Therefore the cost per round of the chicken can be calculated as follows

9÷5/2

= 9×2/5

= 18/5

= 3 3/5

5 0

2 years ago

Whats the area of a circle with a diameter of 12 cm?

Vedmedyk [2.9K]

Answer:

113.1cm

Step-by-step explanation:

area= $\pi$ r²

r= half the diameter r=6

a= $\pi$ 6²

a= $\pi$ 36

a=113.1 cm

8 0

4 years ago

Answer right = get brainliest

saw5 [17]

Answer:

i believe u add all of them up

Step-by-step explanation:

3 0

3 years ago

Let f(x)=3x + 5 and g(x) = 3x2 - x - 10. Find (f/g)(x) and state it’s domain

koban [17]

Answer:

9x²-3x-25, Domain is all real numbers

Step-by-step explanation:

f(g(x)) = 3(3x²-x-10)+5

= 9x²-3x-30+5

= 9x²-3x-25

Domain is all real numbers

5 0

3 years ago

Simplify the expression below.

Ostrovityanka [42]

Answer: OPTION C.

Step-by-step explanation:

Given the following expression:

$4x(3x- 7) - 19x^2$

You can simplify this expression applying these steps:

First step: You must apply Distributive property:

$=12x^2-28x-19x^2$

Second step: You need to add the like terms.

Then, you get:

$=-7x^2-28x$

You can observe that this simplified expression matches with the expression provided in Option C.

3 0

3 years ago

Read 2 more answers