One way to look at this is to make 2 equations and treat it as a set of equations. We will make the cost of a donut equal to x, and the cost of a coffee equal to y.
Harold's order:
4x + 2y = 4.08
Melinda's order:
2x + 3y = 3.92
To combine these equations, we need to cancel out either x or y:
4x + 2y = 4.08
<span>2x + 3y = 3.92
</span>
4x + 2y = 4.08
<span>4x + 6y = 7.84
</span>
4x + 2y = 4.08
<span>-4x - 6y = -7.84
</span>
We can now combine these equations:
4x + 2y = 4.08
<span>-4x - 6y = -7.84
</span>
-4y = -3.76
y = 0.94
Therefore the cost of a large coffee is $0.94. We can plug this into either original equation to find the cost of a donut.
<span>4x + 2y = 4.08
</span>4x + 2(0.94) = 4.08
4x + 1.88 = 4.08
4x = 2.20
x = 0.55
The cost of a donut is $0.55, and the cost of a large coffee is $0.94.
Answer:
80km in 4/5
Step-by-step explanation:
60km × <u> </u><u> </u><u> </u><u>3</u><u> </u><u> </u>= 15×3=45
4
80km × <u> </u><u> </u><u> </u><u>4</u><u> </u><u> </u>= 16×4 =64
5
64 is the answer
ers as the elements in the rows near the bottom.
C.
have higher atomic numbers than the elements in the rows near the bottom.
D.
have lower atomic numbers than the elements in the rows near the bottom.
Answer:
120 degrees
Step-by-step explanation:
Rsm right?