Posted by **Mitch** on Thursday, October 6, 2011 at 1:31pm.

WORD PROBLEM:

Tims tet grades in french were:

86,96,88,91

what score must Tim make on his next test to average 92?

a 89

b 93

c 97

d 99

I said 99. because when you add all

numbers its 460/5 = 92

2) the water level indicator measures the rise and fall in meters of the water level in a resevoir. The o on the gauge indicates the normal water level in the reservoir. The water level at the end of the summer was

-2 and at the end of winter it was 1.

Find the difference between the 2 levels.

-2 - 1 = -3

-3 is the difference between the 2 levels.

is that right?

- math questions -
**drwls**, Thursday, October 6, 2011 at 1:37pm
1) 99 is correct

2) I would call it a change of +3, since the water level rose going from summer to winter.

- math questions -
**Ms. Sue**, Thursday, October 6, 2011 at 1:40pm
1)

He has a total of 378 points now.

Total possible for 5 tests is 500 points.

0.92 * 500 = 460 needed for 92%

460 - 378 = 82% needed on next test.

2) The difference is 3 meters

- math questions -
**Mitch**, Thursday, October 6, 2011 at 2:07pm
for no 1)

I'm confused the data is:

86 96 88 91 which = 361

with a test score of 99

added in its;

86 96 88 91 and 99 = 460 /5 = 92%

and i don't understand how you get 3 meters

i got -3 meters

-2-1=

-2 + -1 = -3

- math questions -
**Ms. Sue**, Thursday, October 6, 2011 at 2:13pm
I'm sorry. I was wrong for number 1. I added the wrong group of numbers.

DrWLS is right (as usual) :-)

- math questions -
**Mitch**, Thursday, October 6, 2011 at 2:18pm
OK SO 1ST ONE IS 99

I Still don't understand how its +3 difference?

can you explain?

- math questions -
**Ms. Sue**, Thursday, October 6, 2011 at 2:37pm
It was 2 meters below normal at the end of the summer. It was 1 meter ABOVE normal at the end of winter. The water rose 3 meters in the intervening months.

- math questions -
**marko**, Thursday, October 6, 2011 at 2:43pm
OK I get it now

thank you

- math questions -
**Ms. Sue**, Thursday, October 6, 2011 at 2:53pm
Marko/Mitch -- please keep the same name on your posts.

## Answer This Question

## Related Questions

- M A T H - WORD PROBLEM: Tims tet grades in french were: 86,96,88,91 what score ...
- math,correction - can someone correct this for me please. Statistics. Sam must ...
- math correction - can someone correct this for me.or teach me if i'm wrong ...
- Math - To pass a course with a C grade, a student must have an average of 70 or ...
- Math - A boy's test grades are 68 , 72, 78, 80 and 86. What grade must he get on...
- math - The average of 5 numbers is 28. What would the 6th number have to be to ...
- math - Ted must have an average of 70 or more in his summer course to obtain a ...
- 6th grade math - Chris has made the following grades on five math test. 90,74,86...
- Math - After 4 tests, Amanda's average score was 88. What score must she earn on...
- Java - Need help asap. You are given a list of students' names and their test ...

More Related Questions