Answer:
(x, y) = (77/240, -3/10)
Step-by-step explanation:
It is convenient to write the equations in standard form.
Multiplying the first equation by 21 gives ...
21y = 24x -14
Multiplying the second equation by 8 gives ...
24x +9y = 5
Then the system of equations in standard form is ...
Subtracting the first from the second, we get ...
(24x +9y) -(24x -21y) = (5) -(14)
30y = -9
y = -9/30 = -3/10
Substituting this into the second equation, we have ...
24x +9(-3/10) = 5
24x = 7.7 . . . . . . . add 27/10
x = 7.7/24 = 77/240
The solution is (x, y) = (77/240, -3/10).
Answer:
25 cups of flour
Step-by-step explanation:
we know that
A bakery uses 8 tablespoons of honey for every 10 cups of flour
so
using proportion
Find out how many cups they use with 20 tablespoons of honey
the answer is ×=19. should be easy after that
13.70$ would be the answer.
I estimated like the problems say, so if you need an exact answer just comment. :)
IQR (interquartile range) is Q3 - Q1. In this data set, Q3 is 13, and Q1 is 7.
13-7 is 6.
Hope this helps!