I believe this is right but I’m not 100%
Answer:
Cost of a slice of cake is $0.80
Step-by-step explanation:
Let the cost of 1 bun be x
Then, cost of 1 slice of cake = (x+0.20)
A/q,
7x + 8(x+0.20) = $10.60
7x + 8x + 1.6 = 10.60
15x = 10.60-1.6
x = 9/15
x = 0.6
Now cost of a slice of a cake = x + 0.20
= $(0.6+0.20)
=$ 0.80
Thank you
Answer:
3/5
Step-by-step explanation:
1/2 can be written as 50%
2/3 can be written as 66.66%
3/5 can be written as 60%
Percent formula : is/of = %/100
18 is what percent of 20...
is = 18
of = 20
% = x
sub and solve
18/20 = x/100
cross multiply
(20)(x) = (100)(18)
20x = 1800
x = 1800/20
x = 90 <=== so 18 is 90% of 20
Answer:
x= -3
Step-by-step explanation:
x equals to -3 is the standard form