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olga nikolaevna [1]
3 years ago
14

3(y-1)=y-11 plz solve this equation with explaination

Mathematics
2 answers:
Fittoniya [83]3 years ago
4 0

Answer:

-14

Step-by-step explanation:

3(y-1)=y-11

3y-3=y-11

y=3-11

y= -14

Multiply 3 into (y-1)

Then substitute 3 for Y

bringthe 3 over the equal sign to y

3y-3 = -3-11

y = -14

stellarik [79]3 years ago
3 0
3(y-1)=y-11

Distribute:
3y - 1 = y- 11

Add 11 to both sides

3y - 12 = y

subtract 3y on both sides

-12 = -2y

Divide by 2y

y= 6
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Plz help guys, it is a pretty easy sum​
RoseWind [281]

Answer:

a3+13a

Step-by-step explanation:

sorry I don't know how to solve this

7 0
3 years ago
Read 2 more answers
DEF is a dilation image of ABC. What is the scale factor?
horsena [70]

Answer:

Option (2)

Step-by-step explanation:

ΔDEF is a dilation image of ΔABC.

Rule for the dilation,

Scale factor = \frac{\text{Length of one side of the image triangle}}{\text{Length of one side of the original triangle}}

                    = \frac{DE}{AB}

                    = \frac{4}{8}

                    = \frac{1}{2}

Therefore, scale factor by which ΔABC is dilated is \frac{1}{2}.

Option (2) will be the correct option.

7 0
2 years ago
Which of the following is true for this table?<br><br> Will give brainliest for correct answer.
marshall27 [118]

It could be seen from the table that when x is 2, the y value is 0. Thus, it can be concluded that the x intercept is (2,0)

The correct answer is B

6 0
3 years ago
Math 2 Of high school
Daniel [21]

Answer:

  • B. BC = 18 so ∆ABC ~ ∆DEF by SAS

Step-by-step explanation:

\bf \cfrac{AB}{DE}  =  \cfrac{BC}{EF}

  • \bf \cfrac{15}{10}  =  \cfrac{BC}{12}
  • \bf  \cfrac{3}{2}  =  \cfrac{BC}{12}
  • \bf BC =  \cfrac{3}{2}  \times 12
  • \bf 3 \times 6
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So, ∆ABC ~ ∆DEF by SAS.

<h3><u>------------------------------------</u></h3>
7 0
2 years ago
charissa ordered 3 cans of lemonade for each person at her party. She also ordered 1 pizza for every 4 people. If she ordered 6
krek1111 [17]

Answer:

72 cans

Step-by-step explanation:

step 1

Find the number of people

we know that

She ordered 1 pizza for every 4 people

using proportion

Find out the number of people for 6 pizzas

\frac{1}{4}=\frac{6}{x}\\\\x=24\ people

step 2

Find the number of cans ordered

we know that

Charissa ordered 3 cans of lemonade for each person

so

using proportion

Find out the number of cans of lemonade she ordered for 24 people

\frac{3}{1}=\frac{x}{24}\\\\x=24(3)\\\\x=72\ cans

7 0
3 years ago
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