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strojnjashka [21]
3 years ago
6

What is the value of 2y- 6 if y = 12

Mathematics
2 answers:
Nuetrik [128]3 years ago
6 0

Answer:

18

Step-by-step explanation:

1.) 2y -6

2 ) 2(12) - 6

3.) 24 - 6

Answer ~ 18

1.) 12 equals y so put 12 in place of y

2.) Using PEMDAS, multiply 12 × 2 which equals 24.

3.) Then you subtract 6 from 24 which equals 18.

Likurg_2 [28]3 years ago
3 0

Answer:19

Step-by-step explanation:

The answer is 19 because you need to do 12*2 and then subtract 6. 24-6=19

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tom left at 1:00 p.m to walk to the pool . it took him 45 to walk there what time did get to the pool ?
lubasha [3.4K]

Answer: 1:45

Step-by-step explanation: If Tom left his house at 1:00 and it took him 45 minutes to get the pool, adding 45 minutes to 1:00 would make his arrival time 1:45. Therefore, he arrived at the pool club at 1:45. Have a great day!

8 0
3 years ago
If Benito earns $187.50 for 12.5 hours of work, how many hours must he work to earn $465.00?
jasenka [17]
\bf \begin{array}{cclll}
amount&hours\\
\textendash\textendash\textendash\textendash\textendash\textendash&\textendash\textendash\textendash\textendash\textendash\textendash\\
187.50&12.5\\
465&x
\end{array}\implies \cfrac{187.50}{465}=\cfrac{12.5}{x}

solve for "x"
6 0
3 years ago
What is the slope of the line ?
atroni [7]

Answer:

-2\frac{2}{3}

Step-by-step explanation:

The line passes through points (1,4) and (4,-4)

Slope (m) = change in y ÷ change in x

i.e m = \frac{-4 - 4}{4 - 1} = \frac{-8}{3} = -2\frac{2}{3}

8 0
3 years ago
What is the x-value of the solution to the system of equations?
ValentinkaMS [17]

Answer:

The solution to the system of equations is:

x=4,\:y=-3

Step-by-step explanation:

Given the system of equations

5x + 4y =8

2x- 3y = 17

solving the system of equations

\begin{bmatrix}5x+4y=8\\ 2x-3y=17\end{bmatrix}

\mathrm{Multiply\:}5x+4y=8\mathrm{\:by\:}2\:\mathrm{:}\:\quad \:10x+8y=16

\mathrm{Multiply\:}2x-3y=17\mathrm{\:by\:}5\:\mathrm{:}\:\quad \:10x-15y=85

\begin{bmatrix}10x+8y=16\\ 10x-15y=85\end{bmatrix}

10x-15y=85

-

\underline{10x+8y=16}

-23y=69

\begin{bmatrix}10x+8y=16\\ -23y=69\end{bmatrix}

solve for y

-23y=69

Divide both sides by -23

\frac{-23y}{-23}=\frac{69}{-23}

y=-3

\mathrm{For\:}10x+8y=16\mathrm{\:plug\:in\:}y=-3

10x+8\left(-3\right)=16

10x-24=16

10x=40

Divide both sides by 10

\frac{10x}{10}=\frac{40}{10}

x=4

Thus, the solution to the system of equations is:

x=4,\:y=-3

7 0
2 years ago
Before conducting some experiments, a scientist mixes 1/2 gram of Substance A with 3/4 grams of Substance B. If the scientist us
Tju [1.3M]

Answer: 10

<u>Step-by-step explanation:</u>

 (\frac{1}{2}+\frac{3}{4})÷\frac{1}{8}

= (\frac{1}{2}(\frac{2}{2})+\frac{3}{4})÷\frac{1}{8}

= (\frac{2}{4}+\frac{3}{4})÷\frac{1}{8}

= (\frac{5}{4})÷\frac{1}{8}

= (\frac{5}{4})x\frac{8}{1}

= \frac{40}{4}

= 10

4 0
3 years ago
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