Answer:
7/1 - 7/1 + 17/1 = 17
Step-by-step explanation:
If Ann can build the model in 3 hours, then in 1 hour she gets 1/3 of it done. Likewise, if Sam can build the model in 6 hours, then in 1 hour he gets 1/6 of it done. We are looking to find how long it takes when they combine their efforts, so we will add the two together and set it equal to 1/x, x being the number of hours it takes for both of them to get the whole job done. The equation then looks like this:
. You will have to find the common denominator to add those fractions, and once you do, cross multiply to solve for x.
The uniforms will cost 1,360, so yes they have enough money to buy 11 uniforms.
Hope this helps.
Answer:
24/40 = 4/5
18/42 = 3/7
Step-by-step explanation:
Sana makatulong