Complete: 1/2 of 15 = 6,00 + ; 6x + 3 = 21 × 3

Question

ScanSolve AI Tutor · Accepted Answer

Here are the solutions for the problems:

Calculate $\frac{1}{2}$ of 15.
$\frac{1}{2} \times 15 = \frac{15}{2} = 7.5$
Set up the equation and solve for the blank.
$7.5 = 6.00 + \text{blank}$ $\text{blank} = 7.5 - 6.00$ $\text{blank} = 1.5$
The completed equation is: $\frac{1}{2}$ of $15 = 6.00 + \boxed{\text{}1.5\text{}}$

3.1.2
Calculate the value on the right side of the equation.
$21 \times 3 = 63$
Set up the equation with the blank as an unknown variable, let's call it $x$ .
$6 \times x + 3 = 63$
Subtract 3 from both sides of the equation.
$6x = 63 - 3$ $6x = 60$
Divide both sides by 6 to solve for $x$ .
$x = \frac{60}{6}$ $x = 10$
The completed equation is: $6 \times \boxed{\text{}10\text{}} + 3 = 21 \times 3$

Complete: 1/2 of 15 = 6,00 + ; 6x + 3 = 21 x 3