Answer:
Step-by-step explanation:
The total cost that farmer McHenry assumes to sell his tomatoes at the farmer´s market includes: the gas, the stand and the price tags. The expression is the following:
Total cost = $2,50 + $1 + $0.50
Total cost = $4
Farmer McHenry's revenue depends on the number of tomatoes he sells:
Revenue (t)= Price* t
Revenue (t)= $0.50(t)
To know how many tomatoes, he must sell so that the cost equals his revenue, you must equal both expressions and then find t:
$4=$0.50 (t)
t= $4/$0.50
t= 8
He must sell 8 tomatoes.
What are you trying to solve for? x and y?
Answer:
x = 8
y = 146
Error = 4.86%
Step-by-step explanation:
Number of business class passenger = x
and the economy class passenger = y
Total number of passengers = 154
x + y = 154 ------(1)
Cost of business class tickets and economy class tickets are €320 and €85 respectively.
Total amount received by airlines is €14970.
320x + 85y = 14970
64x + 17y = 2994 --------(2)
Multiply equation (1) by 17 and subtract from equation (2)
(64x + 17y) - (17x + 17y) = 2994 - 2618
47x = 376
x = 8
From equation (1),
8 + y = 154
y = 154 - 8
y = 146
Airline officer wrote down the amount received as €14270
Then difference from the actual amount received = 14970 - 14270
= €700
% Error = 
= 
= 4.676
≈ 4.68%
Therefore, x = 8 and y = 146
and % error = 4.68%
We are given the following data in tabulated form:
Call minutes, y Bill
Amount ($), x
125 75
150 85
175 95
200 105
We can see that for every 25 increase in call minutes,
there is a constant 10 increase in bill amount. Therefore the equation relating
the two variables is linear. The call minutes is y while the bill amount is x,
therefore:
y = m x + b
where m is the slope and b is the y-intercept
Calculating for the slope m:
m = (y2 – y1) / (x2 – x1)
m = (150 -125) / (85 – 75)
m = 2.5
So, y = 2.5 x + b
Calculating for b using the 1st pair:
125 = 2.5 (75) + b
b = - 62.5
So the final equation is:
y = 2.5 x – 62.5
To match, simply plug in the value of the bill amount ($)
as x in the equation and the answer will be y which is the call minutes.
Answer:
B; 3/14
Step-by-step explanation:
