Question

Translate each sentence into an equation.

Answer 1

Answers

1. 1/4 x M-6= (m+9)x2


Ps. Couldn’t do 4

Answer 2

Question 1

One fourth of m minus six is equal to two times the sum of m and 9:

• $\dfrac{1}{4}m -6=2(m+9)$

This is self-explanatory, please comment if something is unclear.

Question 2

Drew has 50 marbles; red, green and blue.

Equation for this:

• r + g + b = 50

He has six more red marbles than blue marbles:

Equation for this:

• r = b + 6

He has four fewer green marbles than blue marbles:

Equation for this:

• g = b - 4

Substitute r and g into first equation and solve for b:

• r + g + b = 50

• b + 6 + b - 4 + b = 50
• 3b + 2 = 50
• 3b = 48
• b = 48/3
• b = 16

Drew has 16 blue marbles.