Homework Help: Maths

Posted by Anonymous on Tuesday, August 2, 2011 at 6:09pm.

how would you write the following expressions using numbers, parentheses and other mathematical symbols.

1. Double the sum of twenty-five and eight.
2. The quotient of fifteen and three subtracted from the product of four and nine.
3.The difference between twenty and five multiplied by the sum of eight and two.
4.Three times the square root of the sum of nine and seven.

Maths - Ms. Sue, Tuesday, August 2, 2011 at 6:11pm
I'll get you started.

1.
2(25 + 8)

2.
(4 * 9) - (15/3)

I'll be glad to check your answers to the other two problems.
Maths - Anonymous, Tuesday, August 2, 2011 at 6:19pm
3.
(20-5)*8+2

4.(7+9)3

Is this correct? I seem to be struggling with this for some reason.
Maths - Ms. Sue, Tuesday, August 2, 2011 at 6:27pm
3. Good -- except it would be clearer if you put parentheses around 8 + 2
(20-5)*(8+2)

4. You didn't use the square root symbol. Let's see if I can do it.

3 √ (9 + 7)
Maths - Anonymous, Tuesday, August 2, 2011 at 6:36pm
Thank you so much for your help
Maths - Ms. Sue, Tuesday, August 2, 2011 at 6:41pm
You're very welcome.

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