Answer:
80 is less than or equal to 22+7x
8 DVDs
Step-by-step explanation:
I don't have the inequality signs sorry if you don't know its the symbol thats opening to the left with a line underneath
80 is less than or equal to 22+7x
subtract 22
58 is less than or equal to 7x
divide and flip the sign to the right
x is greater than or equal to 8.29
so he can buy 8 DVDs in total
Answer:
multiply 31.4x7.9 then add 9.5 to the answer to multiplication prob. Then add your answer in the first sentence. Then multiply 4.6 x 2 . I think that right,good luck : ) luck.
2 ways: Easy and hard
Hard=A
Easy=B
A: 1/2x+4
work from there so we do fun stuff with it
make something that can be simplified so
1/2x+4 times (2/2)=x+8
now square the whole thing and put the result in a square root thingie
(x+8)^2=x^2+16x+64
![\sqrt{x^2+16x+64}](https://tex.z-dn.net/?f=%20%5Csqrt%7Bx%5E2%2B16x%2B64%7D%20)
multiply the whole thing by 4/4 and put
![\sqrt{16} [\tex] on top so then [tex] \sqrt{x^2+16x+64}](https://tex.z-dn.net/?f=%20%5Csqrt%7B16%7D%20%5B%5Ctex%5D%20on%20top%20so%20then%20%0A%5Btex%5D%20%5Csqrt%7Bx%5E2%2B16x%2B64%7D%20)
times
![\frac{ \sqrt{16} }{4}](https://tex.z-dn.net/?f=%20%5Cfrac%7B%20%5Csqrt%7B16%7D%20%7D%7B4%7D%20)
=
![\frac{\sqrt{(16)(x^2+16x+64)}}{4}](https://tex.z-dn.net/?f=%20%5Cfrac%7B%5Csqrt%7B%2816%29%28x%5E2%2B16x%2B64%29%7D%7D%7B4%7D%20)
=
![\frac{ \sqrt{16x^2+256x+1024} }{4}](https://tex.z-dn.net/?f=%20%5Cfrac%7B%20%5Csqrt%7B16x%5E2%2B256x%2B1024%7D%20%7D%7B4%7D%20)
to solve it, factor out the 16 in the square root and then square root 16 to get 4
then it will be (4 times square root of equation)/4=square root of equatio
factor square root of equation and square root it and get x+8
divide by 2 to get 1/2x+4
B: 1/2x+4
put stuff that cancels out
1/2x+3x-3x+4+56-56
move them around
3 and 1/2x-3x+60-56
or
2x-3x+1 and 1/2x+30-20+30-36
then just add like terms to solve
Answer:
<em>its H</em>
Step-by-step explanation:
Im sure that this is the answer. The table cleary matches with my results.
Hope this helps,
-yuko
Answer:
5/9cd
Step-by-step explanation: