3 years ago

Plz help need answer for test

Mathematics

1 answer:

mylen [45]3 years ago

6 0

(3x+20)+(8x-16)=180

Combine like terms:

11x+4=180

Then solve

11x=176

X=16

You might be interested in

How do I solve this?

klio [65]

Answer:

Its very easy all you have to do is substitute the -3 into the x

Step-by-step explanation:

8 0

3 years ago

There are 156 sixth graders and 7 sixth grade teachers.There are 120 fifth graders and 5 fifth grade teachers.Which grade has lo

Katen [24]

Fifth grade has 24 students per each teacher.
Sixth grade has about 23 students per teacher.

Sixth grade is lower.

4 0

3 years ago

Read 2 more answers

Of the 81 astronauts in the space program, 43 are in outer space. What is the ratio of the number of astronauts on Earth to the

erastovalidia [21]

Answer:

38:81

Step-by-step explanation:

There are a total of 81 Astronauts in the space program.

Out of these, 43 are in outer space.

We are to determine the ratio of the number of astronauts on Earth to the total number of astronauts.

Number of Astronauts on Earth = Total Number - Number in Outer Space

=81-43 = 38

Therefore:

Number of astronauts on Earth : The total number of astronauts. = 38:81

3 0

3 years ago

Read 2 more answers

In a sale, normal prices are reduced by 12%

gulaghasi [49]

132.88/88=1.51
1.51*100=151
the normal price is £151

3 0

4 years ago

Read 2 more answers

Solution to the system<br> y=-x2-3x+2<br> y=x+6

worty [1.4K]

Answer:

$x=-2,y=4$

Step-by-step explanation:

$y=-x^2-3x+2$

$y=x+6$

$x+6=-x^2-3x+2$

$x^2+x+6=-3x+2$

$x^2+4x+6=2$

$x^2+4x+4=0$

$(x+2)(x+2)=0$

$x=-2$

$y=(-2)+6=4$

8 0

3 years ago