Answer:
Step-by-step explanation:
25^2=7^2 + x^2
49 + x^2 = 625
x^2= 576
square both sides
x=24
Answer:
4 of the next 10 will be lattes
Step-by-step explanation:
8 /20 were lattes
divide top and bottom by 4
2/5 were lattes
10 drinks will be sold
10 * 2/5 = 4
4 of the next 10 will be lattes
Answer:
k = 4/25 or 0.16
Step-by-step explanation:
Given the following data;
y = 4/5
x = 5
To find the variation constant, k;
y is directly proportional to x
Mathematically, y = kx
Substituting into the formula, we have;
4/5 = k5
Cross-multiplying, we have;
4 = 25k
k = 4/25