All categories

2 years ago

Please help with math!!!!!!!

Mathematics

1 answer:

iVinArrow [24]2 years ago

7 0

Answer:

Step-by-step explanation:

5a. 7 < x

b. 2< 2x

c. 8 > x

d. 3 > x/29

joe = j

christina = c

Aaron = a

j = 3a , c = a-6 total ages is 149

149 = j + c+ a

149 = 3a + a-6 + a

149 = 5a-6

add 6 to both sides

149 + 6 = 5a-6+6

155 = 5a

a = 155/5

a = 31

c = a - 6

c = 31 - 6

c = 25

You might be interested in

Use the following functions for 10–12:

Step2247 [10]

h(x) = f(x) + g(x) = $h(x) = 18.5x-16$
h(x) = g(x) – f(x) = $h(x) = 23.5x-40$
h(x) = 4g(x) = $h(x) = (84x-112)$

<u>Step-by-step explanation:</u>

Here we have , f(x) = -2.5x + 12; g(x) = 21x - 28 or $f(x) = -2.5x + 12, g(x) = 21x - 28$ .

10. Find h(x) = f(x) + g(x).

⇒ $h(x) = f(x) +g(x)$

⇒ $h(x) = ( -2.5x + 12)+( 21x - 28)$

⇒ $h(x) = ( 21x-2.5x )+( 12 - 28)$

⇒ $h(x) = 18.5x-16$

11. Find h(x) = g(x) – f(x).

⇒ $h(x) = g(x)-f(x)$

⇒ $h(x) = ( 21x - 28)-( -2.5x + 12 )$

⇒ $h(x) = ( 21x+2.5x )+( -12 - 28)$

⇒ $h(x) = 23.5x-40$

12. Find h(x) = 4g(x).

⇒ $h(x) = 4g(x)$

⇒ $h(x) = 4( 21x - 28)$

⇒ $h(x) = (84x-112)$

6 0

3 years ago

Pls help im taking a test

diamong [38]

Answer : b
Explanation

8 0

3 years ago

ABCD is a parallelogram. m∠x = ° m∠y = ° m∠z = °

Alex

Answer:

24 68 89

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

Tomas correctly spelled 18 out of 20 words in his last spelling quiz.what percent of the words did Tomas spell correctly

Ivan

18/20=9/10 9*10=90%
use the fraction or decimal then multiply by 100 or ten depending

3 0

4 years ago

Read 2 more answers

Find the volume of a cylinder with a radius of 3 cm and a height of 7 cm. A) 9π cm3 B) 21π cm3 C) 42π cm3 D) 63π cm3

Liula [17]

Volume of a cylinder is π * r^2 * h
so 3^2 * 7 * π = 9 * 7π = 63π cm^3

The answer is D.

5 0

3 years ago

Read 2 more answers