Posted by **Marisol** on Saturday, April 7, 2007 at 8:02pm.

Do the exact calculation:

7182 x 2123= ________

Approximate to the nearest hundred

_____x_____=__________

Difference between exacct and approximate value=_______

Can you help me with another problem too?

N of the 20 coins are quarters and the rest are dimes. the total value of the coins is $3.50. Find N.

approxiamate to nearest hundred? Somebody has to be kidding, or they dont understand approximations...This is an nine digit number, and the question asks to approximate it to seven digits. That is NOT an approximation. Seven digits is rather precise.

Value=.25n + (20-n).10

3.5=.25n + 2 - .1n

1.5=.15n

n= 10

yeah that what the packet says... i should show my teacher or something. i need help with this one just setting up the equation: David is Y years old. in 15 years he will be 2 times as old as he was 10 years ago. David is____.

## Answer This Question

## Related Questions

- math (SIMPLE INTEREST)c - calculate the exact and approximate number of days i) ...
- math - An initial-value problem is given by the differential equation, f(x,y) = ...
- Math - Give the exact and approximate solutions to three decimal places. X^2-7x+...
- 5th grade math - In 2000 the population of goddard was 5,554. The population of ...
- algebra help - I need help with this problem not understanding it. Give exact ...
- math - Find the approximate value of the volume of the right circular cone of 20...
- math - A) If x^2+y^3−xy^2=19, find dy/dx in terms of x and y. dy/dx=...
- math - Identify the property or rule that justifies each step in the calculation...
- Calculus(Urgent help) - f(x)=x^3-3x^2+3x+1 near 2 (at a=2) A. Use Linear ...
- Calculus Please Help - A) If x^2+y^3−xy^2=5, find dy/dx in terms of x and...

More Related Questions