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<span>Let the wall's length be y. So the fence parallel is also y.
We form the equation;
2x + y = 240
Now the area A is x*y, which is given as 5500.
We have 2 equations with 2 variables. Solve them and get the answer.
xy = 5500
2x + y = 240
Y = 5500/x
2x + (5500/x) = 240
2x^2 - 240x + 5500 = 0
x^2 - 120x + 2750 = 0
Work out the value(s) of x from above. </span>
X = number of cds on the rack
x + 7 = 30
x = 30 - 7
x = 23 <== so there are currently 23 cds on the rack
Answer:
When graphed, the function will have a y-intercept at
(0,-21)
and a vertex at
(2,-25)
Step-by-step explanation:
Answer:
16 2/3
Step-by-step explanation:
If we divide 300 by 100, then we get 1/100th percent of 300, which is 3. Divide the difference, 50 by 3 and thats the percent we save.
16 2/3
Hope this helps!
