Answer:
One cup of coffee is $3.25
Step-by-step explanation:
Create a system of equations where c is the cost of a cup of coffee and d is the cost of a donut
2c + 4d = 10.5
c + 5d = 8.25
Solve by elimination by multiplying the top equation by -5 and the bottom equation by 4
-10c - 20d = -52.5
4c + 20d = 33
Add them together and solve for c
-6c = -19.5
c = 3.25
So, a cup of coffee is $3.25
Answer:
16:10, 4:2.5, 24:15
Step-by-step explanation:
i multiplied each value by 2 and 3 and on the second one i divided by 2
brainliest pls
Answer:
2
Step-by-step explanation:
2(x+5) this is the most you can simplify it
2(2x+4) but you can factor out another 2 so it is 4(x+2)
Answer:
43.0825
Step-by-step explanation:
I don't know if the tax is percentage or just adding
Answer:
hypotenuse is 22.47 m
Step-by-step explanation:
The length of both legs of a right angle triangle are 8m and 21 m
We need to find the hypotenuse
To find hypotenuse we use Pythagorean theorem
Hypotenuse is AC and other two legs are AB and BC

Hypotenuse ^2 = 8^2 + 21^2
hypotenuse = 
= 
= 
= 22.47
So the length of the hypotenuse is 22.47 m