All categories

3 years ago

The sum of 2 time a number and -7, added to 5 times the number

Mathematics

1 answer:

DIA [1.3K]3 years ago

4 0

Answer:

7x - 7

Step-by-step explanation:

Variable: X = the unknown number

2x + (-7) + 5x

= 7x - 7

You might be interested in

A school dance committee is made up of 2 freshman, 4 sophomores, 2 juniors, and 2 seniors.

qaws [65]

Answer:

4 and 6.

Step-by-step explanation:

There are 4 different grades represented, so for the first question, there are 4 ways that the students can sit if they must sit together by grade.

For the second question, there are 3 grades other than senior level, so it starts with 3 ways that the students can be seated. 3 ways x 2 students per way = 6 ways

7 0

2 years ago

PLS HELP !) POINTS What is the solution to the equation 5 + 9x = 50?

anygoal [31]

The solution should be x=5

5 0

3 years ago

Brainliest! And 89 points hurry dont have much time! There are 10 fish tanks at a pet store. The data shows the number of fish i

anastassius [24]

There are no tanks with less than 30 fish, so the first two groups ( 20-24) and (25-29) aren't used.

There are 3 tanks with 30-34 fish.

There are 3 tanks with 35-39 fish.

There are 3 tanks with 40-44 fish.

There are 1 tanks with 45-49 fish.

Now drag the bars for each group to the number of tanks.

See attached picture:

5 0

2 years ago

9c + 5a + 5a + b<br> Kssjjdkdd

Troyanec [42]

Answer:

10a+b+9c

Step-by-step explanation:

first you have to join the like terms then you add them then you write the answer, I hope you understood

9c+5a+5a+b

9c+10a+b

10a+b+9c

6 0

2 years ago

Read 2 more answers

I need to know this question for edge

Rus_ich [418]

Answer:

first function:

$f(x) = \dfrac{2 - 10}{2 - 0} x + 10 = \\ - 4x + 10$

second one:

$g(x) = \cfrac{ - 4 - 2}{2 - 0} x + 2 = \\ - 3x + 2$

now the intersection:

-4x+10=-3x+2

x=8

then y

y = -4×8+10 = -22

so it's

(8,-22)

4 0

2 years ago