Step-by-step explanation:
<u>Tony</u>
pencils=p
pencil box=B
The equation will be:
4p+b=Total costs
<u>Mario</u>
Binders=B
coupon=c
Equation is:
6B-c=Total costs
Hope this helps!!!
Have a nice day :)
Answer: 2c + 6x - 28
Step-by-step explanation:
6x -18 + 2c - 10
add like terms
2c + 6x - 28
2.
-7x + 8x + 1 = x - 7
3.
4. d dimes and q quarters
d + q = 61
d + 3 = q
There's one more equation -- the problem is overconstrained. Let's solve what we have so far. Substituting,
d + d + 3 = 61
2d = 58
d = 29
q = d + 3 = 32
The last equation in cents is
1090 = 10d + 25q
Let's see if our solution still checks:
10(29) + 25(32) = 290 + 800 = 1090
That checks.
Answer: 29 dimes, 32 quarters
5.
1980 = (n-2)180
n-2 = 1980/180 = 11
n = 13
Answer: 13
Answer:
22.50
Step-by-step explanation:
874 = 900
38 = 40
900 / 40 = 22.5 = $22.50
(8*5*4) + (4*4*4)
8*5*4 for the prism at bottom
4*4*4 for the cube on the top