3 years ago

Expand and simply a) 2(4c+5d)+3(c-3d) b) 6(3m+n)-4(m-n)

Mathematics

1 answer:

dezoksy [38]3 years ago

3 0

Answer:

a. 11x + d

b. 15m + 10n

Step-by-step explanation:

a. 2(4c+5d) + 3(x-3d)

Break the brackets:

2*4c + 2*5d + 3*x - 3*3d

= 8x + 10d + 3x - 9d

Collect like termsL

= 8x + 3x + 10d - 9d

= 11x + 1d

b. 6(3m+n) - 4(m-n)

Break the brackets:

= 6*3m + 6*n - 3*m - 4*(-n)

= 18m + 6n - 3m - (-4n)

= 18m -3m + 6n + 4n

= 15m + 10n

Hope this helped :3

You might be interested in

What is the median for 76,84,93,67,82,and 76

Lapatulllka [165]

First arrange the numbers from least to greatest:

67, 76, 76, 82, 84, 93

The median is the middle number. But since we have two numbers that are in the middle we have to find the average of them.

76 + 82 = 158
158/2 = 79

So your answer is 79

3 0

3 years ago

Read 2 more answers

In a class of c children there are 16 boys what fraction of the class are boys

ZanzabumX [31]

Answer:

Step-by-step explanation:

c/16

8 0

3 years ago

Round 576.558 to the nearest tenths place

Semenov [28]

Answer:

576.6

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

A farmer wants to fence an area of 6 million square feet in a rectangular field and then divide it in half with a fence parallel

pogonyaev

3x +2y A =xy = 6,000,000 y = 6,000, 000/x L = 2x + 12,000,000/x 3- (12,000,000/x^2) = 0 3 = 12, 000,000/x^2 sqrt x^2 = sqrt 4,000,000 x = 2,000 and y = 3,000 <span>
</span>

8 0

3 years ago

Please answer this as soon as possible thank you I appreciate it

jok3333 [9.3K]

Not enough information

8 0

3 years ago

Expand and simply a) 2(4c+5d)+3(c-3d) b) 6(3m+n)-4(m-n)​

Expand and simply a) 2(4c+5d)+3(c-3d) b) 6(3m+n)-4(m-n)