Answer:
For equation 21-b=11 given in the statement
the answer is b=10
Step-by-step explanation:
This is the equation: 21-b=11
If we sum '-21' to both sides of equation, we have
21-b-21=11-21, which leaves us to: -b=-10
Now lets multiply the equation from above by '-1', we obtain that b=10
Answer: y=kx/w^2
Step-by-step explanation:
y is directly proportional to x
y∝x
y=kx
y inversely proportional to the square of w.
y ∝ (1/(w)^2)
y=k/w^2
y=kx/w^2
The right answer should be the third choice
Answer:
7 17/49
Step-by-step explanation:
Convert mixed numbers to fractions:
= 90/7 ÷ 7/4
Apply the fraction rule:
= 90/7 * 4/7
Multiply fractions:
90 * 4 / 7 * 7
Simplify:
360/49
Convert improper fractions to mixed numbers:
= 7 17/49
i am so sorry me dont know