All categories

3 years ago

Which expression is equivalent to x + x + x + 5 + 5 no mater what value substituted in for x

Mathematics

2 answers:

goldenfox [79]3 years ago

6 0

Answer:

3x+10

Step-by-step explanation:

So you're going to want to count the amount of X's their are (3) and put them together (3x). Then to simplify the expression, add the 5+5 together, since they are they same type of variables. Now, you put everything together (3x+10).

kipiarov [429]3 years ago

3 0

Answer:

3x+10

Step-by-step explanation:

You might be interested in

Mini made a recipe that yields 4 1/2 cups if each serving is 1/2 cup which expression will help many determine the number of ser

Black_prince [1.1K]

You have to divide the total about of cups by the serving size:

4 1/2 divided by 1/2 and you get the answer.

4 1/2 converted into an improper fraction is 9/2.

9/2 divided by 1/2 = 9

8 0

4 years ago

Read 2 more answers

FIND THE PERCENT DECREASE FROM 20 TO 17. round to nearest tenth if necessary.<br><br> give formula

solmaris [256]

Answer:

The percentage decrease is 15%.

Step-by-step explanation:

To find the percent decrease of any two numbers, subtract the numbers and divide it by the original.

So in this case:

20-17÷20

= 3÷20

= 0.15

Now convert to a percent.

0.15×100 = 15%

8 0

3 years ago

Shandra's parents put $1,500 in her bank account for college tuition. At an interest rate

gavmur [86]

Answer:

$6,427.99

Step-by-step explanation:

-We first find the effective annual interest rate as follows:

$i_m=(1+i/m)^m-1\\\\=(1+0.0825/2)^2-1\\\\=0.084202$

#We the use this rate to find the compounded amount after 18 years:

$A=P(1+i_m)^n\\\\=1500(1.084202)^{18}\\\\=6427.99$

Hence, the amount after 18 years is $6,427.99

5 0

3 years ago

Find the equation of a line through (0, 1) with slope m = 2.

Svetllana [295]

That would be : y = 2x + 1

4 0

3 years ago

Find the values of a and b such that<br> x^2 + 3x + 4 = (x + a)^2+ b

sesenic [268]

Answer:

$x {}^{2} + 3x + 4 = (x + a) {}^{2} + b \\ x {}^{2} + 3x + 4 = x {}^{2} + 2ax + a {}^{2} + b \\ = x {}^{2} + a {}^{2} + 2ax + b \\ 2a = 3 \\ b = 4 \\ a = \frac{3}{2} \\ b = 4$

8 0

3 years ago