MATHEMATICS MIDDLE SCHOOL

Linda did jumping jacks every night for a week.She did 75 on each of the first three nights and 2 times as many on each of the remaining nights.How many total jumping jacks did Linda do that week?​

Answers

Answer 1
Answer:

Answer:

Total number of jumping Jacks by Linda in 7 days = 825

Step-by-step explanation:

Total number of days Linda jumped = 7 days

Now, for first 3 days, jumping jacks each day  = 75

So, total jumping jacks in first 3 days = 75 x 3 = 225

Now, number of days left in the week = 7 days - 3 days = 4 days

Also,  for next 4 days, jumping jacks each day  = 2 x 75 = 150

So, total jumping jacks in last 4  days = 150 x 4 = 600

Hence, the Total number of jumping Jacks in 7 day

= Jumping Jacks in fist 3 days + Number of jumping jack in last 4 days

= 225 +  600

= 825

Hence, Total number of jumping Jacks by Linda in 7 days = 825

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PLEASE HELP!How would you suggest they change their prices?
1 ticket = .50
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Answers

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12=.42
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Erin is going to sew a jacket and a skirt, She 2 3/4 yards of material for the jacket and 1 1/2 yards of material for the skirt. Altogether how many yards of material does Erin need?

Answers

Convert to improper fraction then add together.

2 3/4 yards = 11/4

1 1/2 yards = 3/2

Then convert 3/2 into quarters = 6/4

Then add together 11/4 + 6/4 = 17/4 and convert back to mixed number

17/4 = 4 1/4 yards

A tree casts a shadow that is about 10 ft long. Javier, who is about 5 ft tall, is standing near the tree. Javier’s shadow is about 4 ft long. What is the estimated height, t, of the tree?A)8 ftB)12.5 ftC)15.5 ftD)18.5 ft

Answers

the tree is 11ft  
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Marissa rode her bike to the park and back home. She lives 2 3/10 miles from the park. How many miles did Marissa ride her bike in all?

Answers


If she rides twice the amount of 2 3/10 miles, then she rides 2.3 miles × 2, so that is 4.6 miles, which is 4 6/10 miles, which becomes 4 3/5 miles once simplified. The ending answer is that Marissa rode her bike 4 3/5 miles in all.

What is the difference of 4,047 and 2,191?

Answers

answer: 1,856
4,047 - 2,191 = 1,856

Kevin has 3 bags of apples weighing a total of 22 1/2 pounds.Two of the bags weigh 6 3/8 pounds and 3 1/4 pounds.How much does the third bag weigh?

Answers

3 bags total 22 and 1/2
bag1+bag2+bag3=22 and 1/2
two of the bags weight 6 and 3/8 and 3 and 1/4 so just assign them random bags
bag1=6 and 3/8
bag2=3 and 1/4
subsitute

6 and 3/8+3 and 1/4+bag3=22 and 1/2
we have to add them by making the bottom number same

 6 and 3/8+3 and 1/4
common one is 8
6 and 3/8+3 and 2/8
6+3/8+3+2/8
9+5/8


9 and 5/8+bbag3=22 and 1/2
subtract 9 and 5/8 from both sides
bag3=22 and 1/2-9 and 5/8
bag3=22+1/2-9-5/8
bag3=22+4/8-9-5/8
bag3=21+8/8+4/8-9-5/8
bag3=21+12/8-9-5/8
bag3=21-9+12/8-5/8
bag3=12+7/8
bag3=12 and 7/8

answe ris 12 and 7/8 pounds
First, you change 6 3/8 and 3 1/4 to a common denminator. 8

6 3/8= 6 3/8
3 1/4= 3 2/8 (x2)

Then add those.

6 3/8+ 3 2/8 = 9 5/8

Then subtract 22 1/2 and 9 5/8. (Common denominator)

22 1/2= 22 4/8 (x4)
9 5/8= 9 5/8

the 3rd bag is 12 7/8 lbs.

You can also add each bag (lbs) to see if it gets to 22 1/2
Hope this helps!
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