Math Questions?

Question

1. Write the proportion that is equivalent to the given statement.
If Maria hit 8 home runs in 15 softball games, then she should hit 24
home runs in 45 games.
2. Determine whether each pair of fractions is proportional.
is 5/8 equal to 75/120
3. is 12 gallons of paint over 8,329ft squared = 9 gallons of paint over 1,240ft squared.
4. A store has T-shirts on sale at 2 for $5.50. At this rate, what do five T-shirts cost?

Answer 1

for number 1, the proportion would be:
8/15=24/45 (8 over 15 and 24 over 45)


for number 4 you multiply 5.50 by 4, then add to it what 5.50 divided by 2 is:
5.50(4)+2.75=total cost
22+2.75=$24.75 as the cost of 5 tshirts.

for number 2, 5/8 equals .625 and 75/120 equals .625 also...they're both the same

sorry they're not in the right order...i could'nt figure out number 3..try and figure it out yourself.

Answer 2

1. 8:15
2. Yes. 5 x 15 = 75 and 5 x 15 = 120
3. No
4. Each T shirt is $2.75, so 5 will be $13.75

Answer 3

to solve porportions cross multiply...if the cross products are equal the proportions are equal
1..8/15 = 24/45 ????does 8*45 = 15*24 yes

5/8 = 75/120 if 5*120 =8*75 yes

12/8329 = 9/1240 if 12*1240=9*8329 no

2/5.50 = 5/x
solve using similar methos 2x=5.5*5
5.5*5=27.50 so 2x = 27.50 so x = 13.75

Answer 4

since you have answes for 1,2,4,5, here's 3:
No, it isn't equal