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1.A football team has won 38 games out of 70 played and still has 50 games to play.How many of these games must they win in order that the percentage of games won for the entire season is 60%?

2.An open box is constructed by starting with a rectangular sheet of metal 10cm by 14cm. Square peices are cut out of the corners and the resulting flaps are folded upward to make a box. If the box is 2 cm deep, find its volume.

3.A man divides a basket of apples among his four neighbors. The first neighbor got half the apples, the second neighbor got one-quarter of the apples,the third neighbor received one fifth of the apples, and the fourth neighbor got 6 apples. How many apples were in the basket?

4. Paul and rachel decided to create their own thermometer scales. On Paul's scale water freezes at 30DegreesP and boils at 130DegreesP. On Rachel's scale water freezes at 0DegreesR and boils at 150DegreesR. What temperature on Paul's scale corresponds to a temperature of 30DegreesR?

2007-11-14 13:28:30 · 6 answers · asked by James R 1 in Science & Mathematics Mathematics

Please try to explain the steps to me.

2007-11-14 13:29:04 · update #1

6 answers

Q1.

70 games + 50 games = 120 games

10% of 120 games = 12

50% of 120 games = 60

60 games (50%) + 12 games (10%) = 60% : 72 games

72 games - 38 games played = 34 games

34 wins are needed to = 60%

Q2.

120 cm3

Q3.

120

Q4.

30 to 130 = 100 difference

0 to 150 = 150 difference

150 / 100 = 1.5

30 / 1.5 = 20

Answer = 20DegreesP

2007-11-14 13:35:30 · answer #1 · answered by Anonymous · 0 0

1) Total games to play is 70 + 50 = 120 games
60% of 120 is 120(.6) = 72 games
they have won 38 games so far so 72-38=34 still to be won.

2) 10 x 14 has to have 2cm cut from each corner so the volume will be 6 x 10 x 2 = 120 cm^3

3) 1 = 1/2 + 1/4 + 1/5 + x
1 = 10/20 + 5/20 + 4/20 + x
1 = 19/20 + x
x = 1/20 = 6 apples
total apples were 60 + 30 + 24 + 6 = 120

4) 0 celcius = m(30) + b
b = -30m
100 celcius = m(130) -30m
100 = 100m
m = 1
b = -30
for paul celcius = x - 30

for rachael celcius = (2/3)x
so 2/3(30) = 20 celcius

for paul 20 = x - 30 = 50 for paul

2007-11-14 13:55:28 · answer #2 · answered by J D 5 · 0 0

for question 1::

the answer is they need to win 72 total games and 34 games in addition to the ones they've already won.

70+50=120 (total games at end of season)
60% of 120 = 72 (total games need to win for 60%)
72(total) - 38(already won) = 34(need to win)

they need to win 34 more games!

2007-11-14 13:39:32 · answer #3 · answered by Allie 1 · 0 0

the 3 one is easy! the last n/r got one fifth so 6 times 5 is 30, half of 30 is 15, so you have 15 left one 1/4 is about 9apls so you have 6. I hope that helps!!!!!!!!

2007-11-14 13:39:37 · answer #4 · answered by Anonymous · 0 0

1) they must win 34 more games

2) 120 cm^3
3) 120

4) 20 degreesP

2007-11-14 13:38:07 · answer #5 · answered by info2know 3 · 0 0

the tax is 6% and the in simple terms suited value of the e book is 8.40 3 so what you're finding for is the unique value. 8.40 3 is one hundred% of the value so subtract 6% from 8.40 3 so 8.40 3 * 0.ninety 4 = 7.ninety 4 is the unique value till now tax that's the nicely suited answer in simple terms attempt it in opposite 7.ninety 4 * a million.06 = 8.40 3

2016-12-08 22:14:48 · answer #6 · answered by Anonymous · 0 0

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