(5n^2-n) + (8n^2-2n)

Answers

Answer 1

Answer: 13n^2 -3n should be the answer

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Find the measure of a base angle of an isosceles triangle whose vertex angle measures 72.

Aubrey played on the playground 2 1/2 hours.How many minutes did she play?

Answers

1/2 is half. What's half of an hour? 30 minutes. 2 hours is 120 minutes. Just add those! 120 + 30 = 150. Final answer is 150 minutes. Hope this helped!

I believe Aubrey played for 150 minutes

If you measure the amount of water you drink in a day,would cups or pints give you a more precise measurement?Explain

Answers

cups because you probably drink about a cup or more when you get water

What are the prime factors of 72?

Answers

72= 2^3*3^2

Hope this helps~

The answer to this question should be 3x3x2x2x2 and when you did the times the answer will give you 72

#8 Dylan, Mike and Jeremy had $171. Mike had twice as much money as Dylan. Jeremy had three times as much money as Mike. How much money did Jeremy have?#9 we skipped this one

#10. Maddy had twice as many stamps as Simon. After Maddy sold 60 stamps, Sinom had twice as many stamps as Maddy. How many more stamps did Maddy have than Simon in the beginning?

Answers

Answer:

8. $114

10. 60 stamps

Step-by-step explanation:

Let Dylan have d, Mike have m, and Jeremy have j

3 of them have 171, so we can write:

1. $d + m + j = 171$

Mike has twice as Dylan, so we can write:

2. m = 2d

Jeremy had three times as Mike, so:

3. j = 3m

We can write equation 3 as m = j/3

Also, if we put this into equation 2, we have:

j/3=2d

d=j/6

Now we have d and m in terms of j. We put it into equation 1 and solve for j:

$(j)/(6) + (j)/(3) + j = 171\n(3j+6j+18j)/(18)=171\n(27j)/(18)=171\n27j=18*171\n27j=3078\nj=(3078)/(27)\nj=114$

Jaime has $114

10.

amount of stamps Maddy has is m and amount Simon has is s

Maddy had twice as many stamps as Simon:

m = 2s

Also

After Maddy sold 60 stamps, Sinom had twice as many stamps as Maddy:

s+60=2(m-60)

We put the first equation in the second and solve for s:

s+60=2(m-60)

s+60=2(2s-60)

s+60=4s-120

180=3s

s=60

THus, m = 2(60) = 120

So maddy had 120 - 60 = 60 more stamps than Simon

Identify which of these quadrilateral's are parallelograms.

Answers

Answer:

Opposite Sides equal

Opposite sides parallel

Step-by-step explanation:

What is not a pair of equivalent fractions for 5/8 and 1/2

Answers

11/17 and 2/3 they are not equivalent to 5/8 and 1/2.

hope this helps.

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Wow the teacher gave me so much homework was worderin if u people could help me with a few problems..-4a=4812+-132v+914=-23