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3 years ago

5. Simplify the expressions below by combining like terms a) 4 + x + 3x + 2x - 2

Mathematics

1 answer:

zalisa [80]3 years ago

3 0

Answer:

6x + 2

Explanation:

4 + -2 = 2 and x + 3x + 2x = 6x

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love history [14]

Answer:

It's C

Step-by-step explanation:

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3 years ago

Dennis is cutting construction paper into rectangles for a project he needs to cut one rectangle that is 12 inches times 15 1/4

Nataly_w [17]

Answer:

Dennis need 288.91 square inches of construction paper for his project.

Step-by-step explanation:

Dennis is cutting construction paper into rectangles for a project.

He needs to cut one rectangle that is 12 inches times 15 1/4 inches

First convert the mixed fraction to improper fraction

$15\frac{1}{4} = \frac{(15\times4) + 1}{4} = \frac{61}{4}$

So the area of 1st rectangle is

$A_1 = 12\times \frac{61}{4} = 183 \: in^{2}$

He needs to cut another rectangle that is 10 1/3"" x 10 1/4""

The symbol " means inches

First convert the mixed fraction to improper fraction

$10\frac{1}{3} = \frac{(10\times3) + 1}{3} = \frac{31}{3}$

$10\frac{1}{4} = \frac{(10\times4) + 1}{4} = \frac{41}{4}$

So the area of 2nd rectangle is

$A_2 = \frac{31}{3}\times \frac{41}{4} = 105.91 \: in^{2}$

The total construction paper needed for this project is

$A = A_1 + A_2\\\\A = 183 + 105.91\\\\A = 288.91 \: in^{2}$

Therefore, Dennis need 288.91 square inches of construction paper for his project.

6 0

3 years ago

what is 0 + 0 + -2 + -2 +2 + -2 = ........ is it integer? why or why not ? PLS SHOW WORKKK HURRY PLS HELP ASAP

Morgarella [4.7K]

An integer is a whole number, in other words, a number that isn't a fraction or decimal.

0 + 0 + -2 + -2 + 2 + -2 = -4

-4 is an integer because it is not a fraction or decimal.

Best of Luck!

5 0

3 years ago

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MA_775_DIABLO [31]

Answer:

square root of 166, 13, 14

Step-by-step explanation:

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3 years ago

Determine the value of x in the diagram. 112 x < 68 112 =

nasty-shy [4]

Answer:

The value of x is 68, all the angles in a parrelelogram equal 360, 68 + 112 + 112 + x = 360, all the angles are 292, and subtracted from 360 you get 68

Step-by-step explanation:

3 0

3 years ago