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Over [174]
4 years ago
9

Can someone help me with this problem pls

Mathematics
1 answer:
GREYUIT [131]4 years ago
8 0

Answer:

my answer was 7.5

Step-by-step explanation:

    2

2b+3b-10

4b+3b-10

10-7b=3b fraction bar means divide so...

3b

__                       2

4b because... b-2b=4b and 8-4b=4b

3/4 =7.5 because 4 cant go into three so you add a decimal and a zero and move decimal up and 4 can go into 30 7 time which equals 28 and 30-28 is 2 add another zero and its 20 and 4 goes in 5 times which equals 20 and 20-20=0 so its 7.5 (i hope this helps ;)


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lisov135 [29]
I don't even get this
8 0
4 years ago
Find the measure of each angle.
motikmotik

Answer:

m∠2 = 98°,   m∠3 = 82°

Step-by-step explanation:

I'm going to assume this is a straight angle

  • Supplementary angles

Supplementary angle are two angles that equal 180°

m∠2+m∠3=180°

<h3>-Substitute</h3>

m∠2+m∠2-16=196°

<h3>add both side by 16°</h3><h3 />

2m∠2=196°

<h3>Divide both sides by 2</h3><h3 />

m∠2=98°

Since we said m∠3 = m∠2 - 16°

m∠3 = 82°

6 0
3 years ago
Solve. d + 4 = –1 A. –5 B. –3 C. 3 D. 5
77julia77 [94]
The answer to your question is -5
7 0
3 years ago
Read 2 more answers
Understanding this proof for the proposition "For all integers a, gcd(9a+4, 2a+1) = 1.
olganol [36]

First line because 4(2a+1)=8a+4 and 9a+4-(8a+4)= a


Second line because a times 2 =2a and 2a+1-2a=1


<span>Although the second equality is more or less obvious since 2a+1 leaves a remainder of 1 when divided by a.</span>

3 0
4 years ago
In a cafeteria, 3/10 of the students ate eating salads, and 3/5 are eating sandwiches. There are 30 students in the cafeteria. H
Daniel [21]

Answer:

1/10 or 3kids

Step-by-step explanation:

First you want to take 3/5 into 10nths so you do 3/5 times two and you get 6/10 then you add up 6/10 and 3/10 and you get 9/10. 30÷ 9/10 is 27 so 3 kids are having other things

5 0
3 years ago
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