Answer:
1 hotdog cost $2.25
1 popcorn cost $3.5
Step-by-step explanation:
Let the price of hotdog be and that of popcorn be p
For the first hour;
15p + 14h = 84 •••• (i)
for the second hour;
18p + 16h = 99 •••••(ii)
so we want to solve these two equations simultaneously
In equation 1,
14h = 84-15p
h = (84-15p)/14
Simply insert this into equation ii
18p + 16(84-15p)/14 = 99
Multiply through by 14
252p + 1344 - 240p = 1386
1386-1344 = 252p-240p
12p = 42
p = 42/12
p = $3.5
to get cost of hotdogs;
h = (84-15p)/14
Substitute p = 3.5
h = (84-52.5)/14
h = 31.5/14
h = 2.25
Answer:
925%
Step-by-step explanation:
Multiply 9.25 by 100/100. Since 100/100 = 1, only multiplying by 1 and not changing the value of our number.
9.251×100100=925100
925/100 is 925 over 100 and means 925 per 100. 925 "per 100" means 925 "percent" or 925%
9.25 = 925%
Answer:
Step-by-step explanation:MJKHGFDSASZDFGHJKKJJKHVFFGFBHGYFDRTGBNHBHJYYGJGGYBJHGGHYUYDSRFGYHJHHHBGYGGH B
The derivative of
is
.
In this exercise we must apply the definition of derivative, which is described below:
(1)
If we know that
, then the derivative of the expression is:




The derivative of
is
.
We kindly invite to check this question on derivatives: brainly.com/question/23847661