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The height above ground of a snowball thrown from a cliff is modeled by the function h(t) = -16t2 + 64t + 192, where h is height in feet and t is time in seconds. I d3on't know what to do with this i use to do this but know i forgot Guide me through this...

46 + 2d = 10 + 5d How would i do this problem step by step. I need these notes for the future

The difference of two numbers is 321. The larger number is 190 more than twice the smaller number. Which system of equations presents this information? (S = smaller number and L = larger number) I got: L-S=321(the difference) L=2S+190 What did i do wrong...

Mark is 5 years older than twice Jessica's age. The sum of their ages is 32. How old is Mark. Use M to represent Mark's age and J to represent Jessica's age. Which system of equation could be used to find mark's age? ~M=2J+5 M+2J=32 I think it is right pl...

Lisa is thinking about two positive integers. The larger integer is seven less than twice the smaller integer. The larger integer is also three more than the smaller integer. What is the larger of the two integers that Lisa is thinking about? ~So the prob...

y=1/2x + 3/4 6x+8y=10 Only looking for X Step's in what i did 1.~6x+8(1/2x + 3/4)=10 2.6x+ 8/2x + 24/4 =10 3.(2)(6x+ 8/2x + 24/4 =10)(2) 4.12x+8x+ 24/4=20 5.20x+6=20 6. 20x=14 7. x= 14/20 I don't know what i did wrong. Please help me and if you don't unde...

John has $20 to spend at a used bookstore. He wants to buy twice as many science fiction books as mystery books. Mystery books sell for $1.25. Science fiction books sell for $1.75. Tax is included in the prices. What is the greatest number of science fict...

System Of Elimination: Greg invested $11,000 in two accounts. The first account pays 5% interest per year. The second account pays 8% interest per year. Greg earned a total of $752.50 in interest at the end of the first year. How much did Greg invest in t...

What is the value of x + y in the solution to the system of equations below? x + 8y = 2 y = -0.25x I just need the best explanation so i can do all my other problems cause im confused.

never mind i got it it was F=S+10, sorry for wasting your time ^.^