2 years ago

Which of the following BEST describes how to use the addition property of equality to isolate the variable y below? 2=Y-2/3

Mathematics

1 answer:

damaskus [11]2 years ago

4 0

To solve this equation isolate the variable and add 2/3 to both sides

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Raju bought seven notebooks of two hundred pages and five of hundred pages, for 107 rupees. Joseph bought five notebooks of two

olga nikolaevna [1]

Answer:

Large books = 11

Small books = 6

Step-by-step explanation:

7x + 5y = 107

7x = 107 - 5y

x = 107/7 - 5y/7

5x + 7y = 97

5 (107/7 - 5y/7) + 7y = 97

535/7 - 25y/7 + 7y = 97

535/7 + 24y/7 = 97

535 + 24y = 679

24y = 679 - 535

y = 144/24 = 6: So x =

7x + 5(6) = 107

7x = 107-30

x = 77-7 = 11

8 0

2 years ago

What is the slope of the equation-3=-4(x-5)

scZoUnD [109]

You need to simplify it first.
$-3=-4(x-5)$
Use distribution
$-3=-4x+20$
y=mx+b
m=slope
your slope is -4 :)

5 0

2 years ago

Which of the following are prime factors of both 24 and 42? Select all that apply.

BlackZzzverrR [31]

Answer:

2 and 3

Step-by-step explanation:

So, 24=2x2x2x3

42=2x3x7

3 and 2

4 0

1 year ago

Read 2 more answers

Find the limit. (If an answer does not exist, enter DNE.) lim Δx→0 (x + Δx)2 − 3(x + Δx) + 2 − (x2 − 3x + 2) Δx

yawa3891 [41]

$\displaystyle\lim_{\Delta x\to0}\frac{(x+\Delta x)^2-3(x+\Delta x)+2-(x^2-3x+2)}{\Delta x}$

Expand the numerator as

$x^2+2x\Delta x+(\Delta x)^2-3x-3\Delta x+2-x^2+3x-2=(2x-3)\Delta x+(\Delta x)^2$

Then in the limit,

$\displaystyle\lim_{\Delta x\to0}\frac{(2x-3)\Delta x+(\Delta x)^2}{\Delta x}=\lim_{\Delta x\to0}(2x-3+\Delta x)=\boxed{2x-3}$

3 0

2 years ago

9% percent are in the band. the band has 180 members.how many people are in school

dimulka [17.4K]

9% of n is 180
0.09n=180
n=2000

4 0

2 years ago