8t+3 = 15t-11

3+11=15t-8t

14=7t

how did u get t=2.14??

- Tue Sep 21, 2010 10:57 am
- Forum: Pre-Algebra
- Topic: Solving Q 8t+3 = 15t-11, Double Check A t = 2.14
- Replies:
**1** - Views:
**1489**

8t+3 = 15t-11

3+11=15t-8t

14=7t

how did u get t=2.14??

3+11=15t-8t

14=7t

how did u get t=2.14??

- Fri May 28, 2010 11:21 am
- Forum: Arithmetic
- Topic: Ratios: 2 drinks made w/ concentrate & water
- Replies:
**2** - Views:
**2357**

1st: 2 cans drink to 5 cans water: drink/water=2/5=0.4

2nd: 500mL drink to 1000mL water: drink/water=5/10=1/2=0.5

0.5 is bigger

2nd: 500mL drink to 1000mL water: drink/water=5/10=1/2=0.5

0.5 is bigger

- Wed Aug 05, 2009 10:38 pm
- Forum: Pre-Algebra
- Topic: two numbers. The difference is 24 and the sum is 60.
- Replies:
**5** - Views:
**5383**

So 60 - 24 = 36, 36/2 = 18, 18 + 24 = 42

checking: 42 - 18 = 24 and 42 + 18 = 60

the numbers are 18 and 42

Thanks

checking: 42 - 18 = 24 and 42 + 18 = 60

the numbers are 18 and 42

Thanks

- Sat Aug 01, 2009 1:19 am
- Forum: Pre-Algebra
- Topic: two numbers. The difference is 24 and the sum is 60.
- Replies:
**5** - Views:
**5383**

There are two numbers. The difference is 24 and the sum is 60. What are the two numbers?

is there a formula for this?

is there a formula for this?