All categories

3 years ago

Need helpppp gajsgajshajda

Mathematics

1 answer:

marissa [1.9K]3 years ago

8 0

Answer: 1.) 14.66666666666667
2.) 20

Steps:
1.) 180 = 3x + 136
180 -136 = 3x
44 = 3x
44/3 = x
14.66666666666667 = x

2.) 70 + x = 90
x = 90 - 70
x = 20

I would appreciate brainliest if this was helpful and correct! ;)

You might be interested in

Write the equation in vertex form of the parabola with the vertex (-4,-4) that goes through the point (-2,-16)

Brrunno [24]

Answer:

$- 3(x + 4) {}^{2} - 4$

Step-by-step explanation:

Vertex form is

$a(x - h) {}^{2} + k = f(x)$

We know that h and k are both -4. Let x be -2 and y be -16.

$a( - 2 + 4) {}^{2} - 4 = - 16$

$a(2) {}^{2} - 4 = - 16$

$4a - 4 = - 16$

$4a = - 12$

$a = - 3$

So the equation in vertex form is

$- 3(x + 4) {}^{2} - 4$

5 0

3 years ago

Which ordered pair is a solution of the equation 4x-2y=16?

Lisa [10]

Substitute the coordinates of points to the equation.

$4x-2y=16$

$A.\ (-5,\ -3)\\\\4(-5)-2(-3)=16\\-20+6=16\\-14=16\ \ \ FALSE\\\\B.\ (-5,\ 3)\\\\4(-5)-2(3)=16\\-20-6=16\\-26=16\ \ \ FALSE\\\\C.\ (6,\ -4)\\\\4(6)-2(-4)=16\\24+8=16\\32=16\ \ \ \ FALSE\\\\D.\ (6,\ 4)\\\\4(6)-2(4)=16\\24-8=16\\16=16\ \ \ \ CORRECT\\\\Answer:\ \boxed{D.\ (6,\ 4)}$

5 0

3 years ago

Simplify the ratio of 35:14

Shalnov [3]

Step-by-step explanation:

35 : 14

Divide by 7

5 : 2

We cannot divide it further so the answer is 5 : 2

3 0

3 years ago

3х + 9y - 8x - 2y +7

Sonja [21]

Answer:

-5x+7y+7

Step-by-step explanation:

3х + 9y - 8x - 2y +7 can be written like the equation below to help solve it

3x-8x+9y-2y+7

=-5x+7y+7

7 0

3 years ago

Plssssss answerrrrrrr

densk [106]

Don’t take my word for it but I think 3rd option

8 0

3 years ago

Need helpppp gajsgajshajda​

Need helpppp gajsgajshajda