Answer:
x=-b/2a
Step-by-step explanation:
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If you can buy [email protected] you must have at least 8(61)=488 cents
We get 488/75 = 6.50666... So at 75 cents a pop, you can buy 6 and have some change left over.
Answer: 6
If Ayana gave 1/5 of the peanuts to her sister and then 3/4 of what remained to another sister, she kept 1/5 for herself. It's because:
5/5 is what she got at the beginning
5/5 - 1/5 = 4/5 is what she gave to one sister
3/4 of what remained is 3/4 * 4/5 = 12/20 = 3/5 for another sister
So now 4/5 - 3/5 = 1/5 is what she kept for herself.
9/16.
There is no common factor to 9 and 16.
No number can go into 9 and at the same time go into 16.
So in simplest form it is still = 9/16
It would be (3y+1)(y+5), because the factors of 3 are 1 and 3, and factors of 5 are 1 and 5, 3*5=15,1*1=1, 15 and 1 make a sum of 16
