Questions: Question 6 6 of 13 Evaluate and match each expression on the left to its value on the right, when x=4 and y=7. 12+x 3x+y 4y-10 1/2 xy 18 19 14 16

Transcript text: Question 6 6 of 13 Evaluate and match each expression on the left to its value on the right, when $x=4$ and $y=7$. \[ \begin{array}{l} 12+x \\ 3 x+y \\ 4 y-10 \\ \frac{1}{2} x y \end{array} \] \[ 18 \] 19 14 16

Solution

Evaluate $12 + x$ when $x = 4$.

Substitute $x = 4$ into the expression.

$12 + x = 12 + 4 = 16$

$\boxed{16}$

Evaluate $3x + y$ when $x = 4$ and $y = 7$.

Substitute $x = 4$ and $y = 7$ into the expression.

$3x + y = 3(4) + 7 = 12 + 7 = 19$

$\boxed{19}$

Evaluate $4y - 10$ when $y = 7$.

Substitute $y = 7$ into the expression.

$4y - 10 = 4(7) - 10 = 28 - 10 = 18$

$\boxed{18}$

Evaluate $\frac{1}{2}xy$ when $x = 4$ and $y = 7$.

Substitute $x = 4$ and $y = 7$ into the expression.

$\frac{1}{2}xy = \frac{1}{2}(4)(7) = \frac{1}{2}(28) = 14$

$\boxed{14}$

$\boxed{16}$
$\boxed{19}$
$\boxed{18}$
$\boxed{14}$

Was this solution helpful?

Unhelpful

Helpful

Questions asked by other users

< Previous Next >

Thank you for your feedback.

Copied!