3 years ago

Help with these 4 EQUATIONS . ( PLEASE SHOW WORK) WILL MARK AS BRAINLIEST

1 answer:

3 0

8x+y=18
Y=3x-22
8x+3x-22=18
11x=40
X=40/11
Y=3×40/11-22
Y=-122/11
X=40/11
Y=-122/11

X+8y=17
X=y+8
Y+8+8y=17
9y=9
Y=1
X=1+8
X=9
Y=1

9x+y=58 Y=2x-8 9x+2x-8=58 11x=66 X=6 Y=2(6)-8 Y=12-8 Y=4 X=6
X+8y=21 X=2y+1 2y+1+8y=21 10y=20 Y=2 X=2 (2)+1 X=5 Y=2

You might be interested in

A computer randomly picks a number from the group 105, 106, 107, 108, 109, 110, 111, 112, 113, 114. What is the probability the

nikdorinn [45]

I think 3/10 is the answer

8 0

3 years ago

Read 2 more answers

Which of the following is a good way to quickly determine whether 3⁄12 and ¼ are equal? A. Inverse multiplication B. Reciprocal

fredd [130]

Personally I think the answer would be c. Cross multiplication

5 0

4 years ago

Read 2 more answers

Need help big time this is due at 11:59 please help

natita [175]

Answer:

D) 12

Step-by-step explanation:

7 + 4 + 1 = 12

Hope that helps!

4 0

3 years ago

Read 2 more answers

The current temperature is 48 degrees Fahrenheit it is expected to drop 1.5 degrees each hour. Determine in how many hours the t

kumpel [21]

Answer:

18 hours

Step-by-step explanation:

Plz give brainliest i'm getting desperate

5 0

3 years ago

Read 2 more answers

If g(x) = 5x2^2 - 10x + 9 and h(x) = -3x3^3+ 5x - 6, find g(x) - h(x)?

AnnZ [28]

Answer:

B) $g(x) - h(x) = 3x^3 - 5x^2 - 15x + 15$

Step-by-step explanation:

Here, the given functions are:

$g(x) = 5x^2- 10x + 9 \\h(x) = -3x^3+ 5x - 6$

Now, g(x) - h(x) is :

$(5x^2- 10x + 9) - ( -3x^3+ 5x - 6)\\= 5x^2- 10x + 9 + 3x^3 - 5x + 6\\= 3x ^3 + 5x ^2+ (-10 x - 5 x) + (9 + 6)\\= 3x^3 - 5x^2 - 15x + 15$

⇒ $(5x^2- 10x + 9) - ( -3x^3+ 5x - 6) = 3x^3 - 5x^2 - 15x + 15$

B) Hence, $g(x) - h(x) = 3x^3 - 5x^2 - 15x + 15$

3 0

3 years ago