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3 years ago

7 − 3x + 3 + 8x combining like terms

Mathematics

2 answers:

Lemur [1.5K]3 years ago

8 0

Answer:

10+5x

Step-by-step explanation:

7 and 3 are like terms and 7+3=10

-3x and 8x are also like terms and -3x+8x=5x

Therefore you have 10+5x

Darya [45]3 years ago

5 0

Answer:

10-11x

Your welcome

Step-by-step explanation:

First, sort out the variables and the non-variables:

(7+3)-(8x+3x)

Then add the variables and the non-variables:

10-11x

Your Welcome

(I am 99.9% sure this is right)

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326.59 rounded to 1 decimal place

vekshin1

Answer:

326.6

Step-by-step explanation:

6 0

3 years ago

Write a number with two decimals places that is bigger than 4 1/5 but smaller then 4.25 (Could u explain so i can actually under

zubka84 [21]

The possible answers are:
4.21
4.22
4.23
4.24

Explanation:
We want a number between 4 1/5 and 4.25. We will convert 4 1/5 to a decimal first:

Divide 1 by 5: 1/5 = 0.2.

This makes 4 1/5 = 4 + 1/5 = 4 + 0.2 = 4.2.

We want a number between 4.2, which can be written as 4.20, and 4.25. Any number between will do, so the possible answers would be
4.21, 4.22, 4.23, or 4.24.

7 0

3 years ago

Read 2 more answers

Factor completely 49x2 − 81. a. (7x 9)2 b. (7x − 9)2 c. (7x 9)(7x − 9) d. 7x − 9

vredina [299]

Use the property
(a -b)(a+ b) = a^2 - b^2

49x^2 - 81 = (7x + 9)((7x - 9)

3 0

4 years ago

Read 2 more answers

Can anyone explain to me how to solve for this?

il63 [147K]

Answer:

x = 11

Step-by-step explanation:

The angle formed by two secants is half the difference of the intercepted arc angles.

m∠D = ½ (mBS − mCE)

60 = ½ (173 − (5x − 2))

120 = 173 − 5x + 2

5x = 55

x = 11

6 0

3 years ago

Is the ordered pair a solution of y ≥ 2x − 5? a. (3, 1) b. (1, −4)

Deffense [45]

Answer:

a. Yes

b. No

Step-by-step explanation:

To find if an ordered pair is a solution to the inequality, substitute its x and y values for the x and y in the inequality and solve. If the equation is true, then it is a solution. If it is not, then it is not a solution.

1) First, substitute the x and y values of (3, 1) into the inequality. So, substitute 3 for x and 1 for y:

$1 \geq 2(3)-5\\1\geq 6-5\\1\geq 1$

1 is greater than or equal to 1, so (3,1) is a solution.

2) Second, do the same with the point (1, -4). Substitute 1 for x and -4 for y:

$-4\geq 2(1)-5\\\\-4\geq 2-5\\-4\geq -3$

However, -4 is not greater than or equal to -3, thus (1, -4) is not a solution.

4 0

3 years ago