3 years ago

What is the sum of (3x + 5) and (4x - 4)?

Mathematics

1 answer:

asambeis [7]3 years ago

5 0

Answer:

7x+1

Step-by-step explanation:

(3x+5) + (4x-4)

3x+4x+5+(-4)

7x+5+(-4)

7x+5-4

7x+1

You might be interested in

An angle measures 26.9 degrees. What is its complement?

Degger [83]

Answer:

63.1°

Step-by-step explanation:

Complementary angles sum 90°

90 - 26.9 = 63.1°

8 0

2 years ago

Bruce saved $35.00 to buy a new video game. The game's original price was $42.00, but it was on sale or 30% off. The sales tax r

Tems11 [23]

Bruce does have enough money to buy the video game.

x/42 = 30/100

x=12.60 - This is the amount of money the video game is without tax

x/12.60 = 5/100

x=0.63 - sales tax amount

0.63+12.60=13.23 - amount of video game with tax

6 0

3 years ago

If n-2 = 1/16, then n could be which of the following?

arlik [135]

The answer is E.4

The equation is: $n ^{-2}= \frac{1}{16}$

Since $x^{-a}= \frac{1}{ x^{a} }$ , then $n^{-2} = \frac{1}{n^{2} }$

Therefore, the equation is:
$\frac{1}{ n^{2} } = \frac{1}{16}$
⇒ $n^{2} = 16$
$n= \sqrt{16}=4$

6 0

3 years ago

Read 2 more answers

The length of the hypotenuse of a right triangle is 40 centimeters. The legs of the triangle are the same length. How long is ea

djverab [1.8K]

28.284 You square 40 then find what is the square root of 800<span />

7 0

3 years ago

Emilio borrows $1200 from a bank with 8% simple interest per year. How much will he have to pay back total in 2 years?

Vinil7 [7]

Answer:

Step-by-step explanation:

1200÷2=600

8 0

3 years ago