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...2. 13 in 2 hrs. 8x13=104 in 8 hrs. 3. 7 to 4

**49**/7=7 7x4=28**49**to 28 4. 110.50 in**1**week 25x110.50=2762.50 2762.50 in 253 Answers · Science & Mathematics · 09/01/2008

I think #4. is B :

**49**+ 8 = 57**49**- 10 = 39 57 - 39 = 18 For #**1**. I think that**1**apple =**1**/2 pear so I tried to**do**it & this is how far I got : 5A + 6B = 8B...6 Answers · Science & Mathematics · 11/08/2008

Maan this is loong!! anyway:

**1**. let x be**john**3x be mary so: x + 3x = 140 coins simplify: 4x = 140 divide by 4 x = 35...1 Answers · Science & Mathematics · 26/08/2007

...7/2. ------- Check work (something

**John**obviously didn't**do**! :-)... f(x) = -2x^2 + 5x + 7 f(-**1**) = -2(-**1**)^2 + 5(-**1**) + 7 f(-**1**) = -2(**1**) - 5...2(7/2)^2 + 5(7/2) + 7 f(7/2) = -2(**49**/4) + 35/2 + 7 f(7/2) = -**49**/2 + 35/2 + 14...3 Answers · Science & Mathematics · 18/03/2013

find

**1**% of £35 = £0.35 multiply by 40 = £0.35 * 40 = £14 £14 + £35 = £**49**4 Answers · Science & Mathematics · 11/10/2009

...which is 500. divide it by all (total) which is 1000. So, 500/1000 =

**1**/2. you**do**the rest.1 Answers · Science & Mathematics · 08/09/2008

...again. mean = 19 standard deviation = 6 at 12, z = (12 - 19)/ 6 = -

**1**.17 or p = 0.1210 at 23, z = (23-19)/6 = 0.67 or p = 0.7486...the sample means if the population’s variance is**49**. population: variance =**49**standard deviation = sqrt(s^2) = sqrt(**49**...1 Answers · Science & Mathematics · 22/12/2007

...to get the total rate. Sam can

**do**a job in 4 days, which is**1**/4 jobs per day. Lisa can**do**a job in 6 days, which is**1**/6 jobs per day. Tom can...1 Answers · Science & Mathematics · 07/01/2010

...

**1**+**1**/6)x the total of 4200= George+**John**+Charles or 4200= (**1**+**1**/7)(**1**+**1**/6)x +(**1**+**1**/6)x + x Expand...and you will find the denominator to be 42 .... 4200=**49**/42 x+ 42/42 x + 56/42 x= 147/42 x x=4200...6 Answers · Science & Mathematics · 05/11/2008

...then

**1**/(2pi), and area is**1**/(4pi). By the way, you can**do**this exactly by separating...and this one is about 6.**49*** 10^-8, so it is ...don't know what exactly**John**was**doing**, but...5 Answers · Science & Mathematics · 24/05/2008