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s2008m [1.1K]
3 years ago
12

What is the sum of (7-b)+(3b+2)

Mathematics
1 answer:
nadezda [96]3 years ago
4 0
(7 - b) + (3b + 2)

Open the parentheses (this is a simple addition question so there's no need to do anything)

7 - b + 3b + 2

Rearrange (not necessary but makes it easier)
3b - b + 7 + 2
2b + 9

-T.B.
You might be interested in
how many 1 3/5 inch thick books can fit on a 14 1/2 inch long bookshelf? help as soon as you can please
pychu [463]

Answer:

9  1/16 or about 9 books

Step-by-step explanation:

14.5÷1.6=9.625    9.625= about 9

4 0
3 years ago
Can someone give me the answers for these?
Katyanochek1 [597]

Answer:

a.  He started with $50 in the the account.

b.  The account grow by $10 dollars each week

c see graph

Step-by-step explanation:

y = 50 + 10x


We can rewrite this as

y = 10x+50

This is in the form y = mx+b

where m = 10 which is the slope and b =50 which is the y intercept

The y intercept = 50 is the starting value or the value when x = 0

a.  He started with $50 in the the account.


The slope is how much it grows by as x grows.  As x increase by 1 , y will grow by the slope or 10, so  the account will grow by 10 each week.

b.  The account grow by $10 dollars each week


c see graph

5 0
4 years ago
B. Simplify by making mathematical expression<br>9 is subtracted from 3 times the sum<br>5 and 6.​
KatRina [158]

Answer:

24

Step-by-step explanation:

3(5+6)-9

3(11)-9

33-9

24

5 0
3 years ago
Read 2 more answers
Which of the following is a value are perfect square
DiKsa [7]

Answer:

1, 81, and 121 are correct

Step-by-step explanation:

they are the only ones that do not have a decimal when squared

1=1

81=9

121=11

7 0
3 years ago
Read 2 more answers
Find m&lt;2 and m&lt;3 in the rhombus. The diagram is not to scale.
Umnica [9.8K]

Answer:

m∠2 = 118, and m∠3 = 31

Step-by-step explanation:

The 2 opposite angles of a rhombus are equal.

Angle 1 and Angle 2 are opposite to each other. Since Angle 1 is 118, angle 2 is also 118.

Now looking at the bottom triangle in the rhombus, the two sides are equal (given by 2 lines). Hence, the 2 opposite angles are equal. Since we know 3 angles of a triangle add up to 180 degrees, we can write: (let angle 3 be x):

x + x + 118 = 180

2x = 180 - 118

2x = 62

x = 62/2

x = 31

So m∠2 = 118, and m∠3 = 31

5 0
4 years ago
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