All categories

3 years ago

What is the simplified expression for Negative 3 (2 x minus y) + 2 y + 2 (x + y)?

Mathematics

2 answers:

Agata [3.3K]3 years ago

8 0

Answer:

7y-4x

Step-by-step explanation:

Lana71 [14]3 years ago

5 0

Answer:

$7y - 4x$

Step-by-step explanation:

$-3 (2x-y)+2y+2(x+y)\\$

Step 1: Open the brackets

$= -6x+3y +2y +2(x+y)\\=-6x +3y + 2y +2x + 2y$

Step 2: Bring the similar variables together

$=-6x +2x \ +3y + 2y + 2y$

Step 3: Simplify by adding/subtracting the coefficients of the similar variables

$= - 4x +7y$

Step 4: Rearrange as required.

You might be interested in

Tom drove 130 Miles at the speed of 65 mph, and then 200 more miles at the speed of 30 mph. What was his average speed for the e

ch4aika [34]

47.5 mph- because 30+65 equals 95 and 95 divided by 2 is 47.5

7 0

2 years ago

Can someone help me with question please :) .

navik [9.2K]

Answer: C,D

Step-by-step explanation:

3 0

2 years ago

Read 2 more answers

Show ALL your calculations.

Nesterboy [21]

Answer:

<DEB= 125 degrees

Step-by-step explanation:

To get this, you would need to know all 2 angles of the triangle.

To find the first angle, simply do 180-107 to get 73(because supplementary angles add up to 180 degrees).

Next, 180-52(given angle)-73 to get 55 because the 3 angles of a triangle add up to 180(triangle angle sum theory).

You would see that <DEB is part of another supplementary angle so, do 180-55 to get 125.

<DEB=125 degrees.

8 0

2 years ago

Read 2 more answers

Earth Day 40 people volunteer to work at the city park clean-up 10 of the 40 volunteer are high school student the coordinator w

o-na [289]

Answer:

25%

Step-by-step explanation:

5 0

2 years ago

The mean daily rainfall for a week was 5.5mm.for the first six days the mean rainfall was 1mm.How much rainfall on the seventh d

spayn [35]

Answer:

There was 32.5mm of rainfall on the seventh day.

Step-by-step explanation:

Mean of a data-set:

The mean of a data-set is the sum of all values of a data-set divided by the number of values in the data-set.

The mean daily rainfall for a week was 5.5mm.for the first six days the mean rainfall was 1mm.

This means that during the week(7 days), the total amount of rain was of:

$6*1 + x = 6 + x$

How much rainfall on the seventh day ?

This is x. We have that:

$\frac{6 + x}{7} = 5.5$

$6 + x = 7*5.5$

$6 + x = 38.5$

$x = 38.5 - 6 = 32.5$

There was 32.5mm of rainfall on the seventh day.

7 0

3 years ago