Answer:
I would say 8.
Step-by-step explanation:
Using the Pythagorean Theorem, a2+b2=c2.
7^2+5^2=c^2
49+25=74
Now find the square roots of all numbers...
7+5= about 8.
I think adding because ur adding the two things together
Answer:
6 ketchup / 1 mustard
Step-by-step explanation:
3 ketchup = 0.5 mustard
6 ketchup per 1 mustard
3x + 2y = 39
5x - y = 13
Multiplying the last by two:
10x - 2y = 26
Adding to the first
13x = 65
x = 5
y = 5x-13 =25-13=12
Check:
3(5)+2(12)=39 good
5(5)-12=13 good
Answer: x=5, y=12
Unknown values can be taken as anything , for example : the most common is x for unknown values and sometimes, for angles we can take θ(theta).
it is totally upto you!
