Oranges=r
apples=a
12<em>r</em>+7<em>a</em>=5.36
-12<em>r </em> -12<em>r</em>
What you do on one side you do on both sides
12 on the left cancels out
7<em>a</em>=5.36-12<em>r</em>
/7 /7 /7
Divide 7
7 on the left cancels out
5.36/7=0.76....
left with
<em>a</em>=0.76-12<em>r</em>/7
so the apples cost $0.76 each
to get the cost of the oranges (<em>r</em>) you do the same as you did to get the cost of the apples.
Also on the other equation for 8 oranges and 5 apples you might get different answers but you will see that they are close/similar to the same answers as you will get for the last equations.
-5 x 2y = 22
2y = 22 / -5 which is -4.4
y = -2.2
Substitute:
-6x + 11 = 18
-6x = 7
x = 7 / -6
Answer:
80 is the actual number
Step-by-step explanation:
(28/7)(6)=24
24 x 100=2400
2400/30=80
80 x .3 = 24
Sin^5 x = <span>1/16 (10 sin(x) - 5 sin(3x) + sin(5x))</span>
Remember that both the denominator and the square root function cannot have values less than 0. So to figure what values can go into each we need to do a little math. Set both the denominator and the under the radical equal to 0
x + 2 = 0 x - 3 = 0
x = -2 x = 3
Since they must be those numbers or bigger 3 is the larger of the 2 the final answer is
x >= 3 Type in greater than into the box
