All categories

3 years ago

What is 7+6x evaluated for x=3

Mathematics

2 answers:

stellarik [79]3 years ago

3 0

Answer:25

Step-by-step explanation:plug in 3 to 6 (multiply)

add 18 to 7

Ira Lisetskai [31]3 years ago

3 0

25, 6x3=18 then add 7 to get 25.

You might be interested in

Help i would like an explanation if possible and Im not smart

sesenic [268]

Answer:

3/16

Step-by-step explation

1/2 x 3/8

7 0

2 years ago

Plz help ASAP !! will mark u brainlist

kogti [31]

Answer:

D. The 4th choice.

Step-by-step explanation:

We can see from the graph that the point (-2, -5) is excluded from the line since there is there an open circle.

The domain is all real numbers except -2.

The range is all real numbers except -5.

3 0

4 years ago

Read 2 more answers

Use substitution to solve the following system of equations. What is the value of y? {3x+2y=12{5x−y=7 A) y = -3B) y = 3C) y = -2

Vlad [161]

<em>Answer</em>

B) y = 3

<em>Step-by-step explanation</em>

Given the system of equations:

$\begin{gathered} 3x+2y=12\text{ \lparen eq. 1\rparen} \\ 5x-y=7\text{ \lparen eq. 2\rparen} \end{gathered}$

Isolating x from equation 1:

$\begin{gathered} 3x+2y-2y=12-2y \\ 3x=12-2y \\ \frac{3x}{3}=\frac{12-2y}{3} \\ x=\frac{12}{3}-\frac{2}{3}y \\ x=4-\frac{2}{3}y\text{ \lparen eq. 3\rparen} \end{gathered}$

Substituting equation 3 into equation 2 and solving for y:

$\begin{gathered} 5(4-\frac{2}{3}y)-y=7 \\ 5\cdot4-5\cdot\frac{2}{3}y-y=7 \\ 20-\frac{10}{3}y-y=7 \\ 20-\frac{13}{3}y=7 \\ 20-\frac{13}{3}y-20=7-20 \\ -\frac{13}{3}y=-13 \\ (-\frac{3}{13})\cdot-\frac{13}{3}y=(-\frac{3}{13})\cdot-13 \\ y=3 \end{gathered}$

6 0

1 year ago

G(t)=t³+5t²; Find g(-1)

erik [133]

Answer:

I need points sorry bbh

Step-by-step explanation:

6 0

3 years ago

"Two less than the total of a number and five"

tino4ka555 [31]

Answer:

Step-by-step explanation:

6 0

3 years ago