Answer:
a=3
Step-by-step explanation:
The formula for direct proportion is
f = ka
Let f= 42 and a = 7
42 = k*7
Divide each side by 7
42/7 = k7/7
6 =k
f = 6a
Let f = 18
18 = 6a
Divide each side by 6
18/6 = 6a/6
3 =a
I believe it's b , hopefully this helps
Answer:
1: -7x +4x -11=22 Answer: <em> </em>x=−11
2: 3x - 5 = 7 Answer: x=4
3: 3(x + 7) = 5x
-7 Answer: x=14
4: 2(x-5) + 3x =20 Answer: x=6
Step-by-step explanation
1: <em> </em>x=−11
2: x=4
3: x=14
4: x=6
Above is the answers.
Down is the steps of the questions.
Example for question 1
1: Step 1: Simplify both sides of the equation.
2: Step 2: Add 11 to both sides.
3: Step 3: Divide both sides by -3.
<em><u>Hope this helps.</u></em>
$80 times 0.25 equals 20
80 minus 20 equals 60 bucks
1) variable
2) value
3) absolute value (maybe)
4) natural numbers
5) whole numbers
6) integers
