4 years ago

What value make this sentence true 8 + ___ = 15 + 2

Mathematics

2 answers:

Hunter-Best [27]4 years ago

8 0

Answer: 9

Step-by-step explanation:

isn't it obvious

Semenov [28]4 years ago

8 0

Answer:

Step-by-step explanation:

8 + ___ = 15 + 2

Combine like terms

8 + ___ = 17

Subtract 8 from each side

8-8 + ___ = 17-8

___ = 9

9 is the number we need to fill in the blank

You might be interested in

On a number line, where is the number -1 in relation to the number -7?

valentinak56 [21]

the asnwer will be 7 cuz -7/-1

4 0

3 years ago

On a map, the scale shown is 1 inch: 20 miles. If a city is 900 square miles, what is the area of the city on the map?

WITCHER [35]

Answer:

2.25 square inches

Step-by-step explanation:

we know that

The scale is $1\ inch: 20\ miles$

That means

1 inch on a map represent 20 miles in the city

An area of $(1)(1)=1\ in^2$ on a map represent an area of $(20)(20)=400\ mi^2$ in the city

Applying proportion

$\frac{1}{400}\ \frac{in^2}{mi^2}=\frac{x}{900}\ \frac{in^2}{mi^2}\\\\x=900/400\\\\x=2.25\ in^2$

3 0

3 years ago

4 Times the sum of a number and 6 is 5 less than 3 times the same number. write an equation and solve for the number

Vladimir [108]

Answer:

-29

Step-by-step explanation:

4× (x+6) = -5. + 3x

4 times the sum of a number is 5 less than 3 times the same number

4×(x+6) = 3x - 5

4x + 24 = 3x - 5

x = -29

3 0

3 years ago

A polynomial g(x) has a factor of (x-a). What is the value of g(a)?

alexdok [17]

This is your answer (x-a).g(a)

8 0

3 years ago

Which table shows a proportional relationship between x and y?

Tanzania [10]

It's C.
multiply by 3
x = 4, y = 4x3 = 12
x = 5, y = 5x3 =15
x = 6, y = 6x3 =18

4 0

3 years ago

Read 2 more answers