Answer:
a. 
b.
c. 
Step-by-step explanation:
a. In the account are 6 deposits of the paid that Tom gets each month and the initial $1240. Let 
be the paid Tom gets each month, then:
Solving for :
b)Let 
be pounds contained in the first box, 
the pound in the second box, 
the pounds in the third box and 
the pound in the fourth box, then:
Substitute the value of in the last equation:
Substitute all the equation in the first and solve for :
Solving for x2,x3, and x4:
c) Simon is ordering 5 cans and 5 racquets, the total from the cans is 5(4)=$20. Let x be the cost of each racquet,
Solving for x:
4x - y = 61
2y = x
substitute x = 2y in first equaation:-
4(2y) - y = 61
7y = 61
y = 61/7
so x = 2 * 61/7 = 122/7
y = 8 5/7 and x = 17 3/7
The answer is 9.
This is a cube root.
9 cubed, or 9 the the third power, is 729
Answer:
x=4 and y=2
Step-by-step explanation: Step 1: Solve x+3y=10 for x:
x+3y=10
x+3y+−3y=10+−3y(Add -3y to both sides)
x=−3y+10
Step 2: Substitute−3y+10for x in2x+2y=12:
2x+2y=12
2(−3y+10)+2y=12
−4y+20=12(Simplify both sides of the equation)
−4y+20+−20=12+−20(Add -20 to both sides)
−4y=−8
−4y
−4
=
−8
−4
(Divide both sides by -4)
y=2
Step 3: Substitute 2 for y in x=−3y+10:
x=−3y+10
x=(−3)(2)+10
x=4(Simplify both sides of the equation)
So your answer would be x=4 and y=2
Hope this helps
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