Math Help to make sure answer is right?
you first need to convert all the "whole number fractions" (mixed fractions) to improper fractions.... for example... 4 1/2 is equal to the mixed fraction 9/2.... [(4*2) + 1]/2 = 9/2 i.e. [(whole number * denom) + num]/denom sooo.... the given should now look like this with mixed fractions... (1/3 / 9/2) * (13/8 * 17/3) ---------------------------------- (1/2 * 1/3) + (3/4 / 6) now to divide a fraction by another fraction you simply take the first fraction... and multiply by the 'flip' (or reciprocal) of the second fraction... i.e. reversing the num and denom of the second fraction... your problem should turn from looking like this... (1/3 / 9/2) * (13/8 * 17/3) ---------------------------------- (1/2 * 1/3) + (3/4 / 6) to looking like this... (1/3 * 2/9) * (13/8 * 17/3) ---------------------------------- (1/2 * 1/3) + (3/4 * 1/6) .... where given 3/9 is same as 1/3 which then should look like this... (2/27) * (221/24) ------------------------ (1/6) + (3/24) then on top in the numerator... you can 'cancel' terms... 2 goes into 24... so 2 becomes 1 and 24 is now 12 and on bottom... the LCM (lowest common denom) is 24... so 1/6 is the same as 4/24... combine with the 3/24 and you get 7/24 in the denominator of above... 221/324 ------------ 7/24 now remember what I said up above about dividing one fraction by another?.... use that principle of 'flipping' here... so now you have... 221/324 * 24/7.... but wait... 324 in the denom and 24 in the num are both divisible by 12.... so 324 becomes 27 and 24 become 2... so now you have... 221/27 * 2/7 = 442/189 reduced... basically what I did was take 221/324 * 24/7.... and divide both top and bottom above by 12 442/189 should be your daughter's final answer... not what she has... or... 2 and 64/ 189 ths... hope this helps... BTW... I just compared my answer to the above person's to see if we came out with the same result.... notice that the person turned '1/6' into 2/24... not '4/24' what it should be... which when added to 3/24 will be 7/24... not 5/24... and then flipped to 24/7, not 24/5 trust me... I checked my math a couple times... and I still get what I get...
Ratios!!! help please!! make sure they are right!?
here is what i need to do tell me the answers!!! simplest form! 30 to 12 5:20 49:42 15 to 13 28 feet:35 feet 24 minutes to 18 minutes 75 seconds:150 seconds 12 feet:60 feet
I need to make sure if i am right any boody if not please help. Multiple choice. Thanks?
3. Glenn Andrews recently bought a new motorbike for $3,950. If he had to pay 6 percent sales tax on the bike, what was the total cost of the bike? A. $4,187 B. $4,010 C. $3,713 D. $2,370 4. Alice Correa bought three yards of cloth to make a dress. The cloth was on sale for $1.93 per yard. How much did Alice pay for the cloth if the sales tax was 5 percent? A. $2.02 B. $5.79 C. $5.82 D. $6.08 I think 3.B and 4.A if not please help anyboody. Thanks if u respond
I need to make sure if i am right any boody if not please help. Multiple choice. Thanks?
5. Mary Stevens earns $6 an hour at her job and is entitled to time-and-a-half for overtime, and double time on holidays. Last week she worked 40 hours of regular time, 6 1/2 hours of overtime, and 8 hours of holiday time. How much did she earn? A. $74.37 B. $140.00 C. $190.75 D. $394.50 6. Juan Ramirez sells suits in a major department store on weekends. He earns a commission of 5 percent on the first ten suits, and if he sells more than ten, he earns an additional 3 percent on the additional suits. Last weekend Juan sold thirteen $250 suits. What was his commission? A. $147.50 B. $185.00 C. $210.40 D. $260.00 I think i am litle wrong. I think 5.B 6.C