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Anastaziya [24]
3 years ago
6

Can someone show me the working out for this questions and not just tell me the answer please the equation is;

Mathematics
1 answer:
Sergeeva-Olga [200]3 years ago
6 0
Do the same thing to both sides as long as not divide by zero
PEMDAS
parenthasees
exponents (include square root)
multiplication or division
addition or subtraciton


5y/6-2y/3+5=y
interesting
isolate the variable
subtract 5 from both sides
5y/6-2y/3=y-5
subtract y from both sides
5y/6-2y/3-y=-5
try to clear fractions by multplying by greatest common multiplue of 6,3, and 1 which happens to be 6
multiply both sides by 6
5y-(2 times 2y)-6y=-30
5y-4y-6y=-30
add like terms
-5y=-30
multiply -1
5y=30
divide both sides by 5
y=6
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I need help finding the y-intercept of these, I am no good with slope and tables. ;-;
zubka84 [21]

Answer:

1. -4

2. 6

3. -6

(i hope this is right •_•)

Step-by-step explanation:

<u>First table</u>

When the x coordinate is 0, that point is your y intercept. For the first one, your y intercept is -4.

<u>Second table</u>

For the second one, we need to do a bit of counting. We can see the x coordinates go before and after zero, but the table does not show us 0. So, we're going to have to calculate the slope. Bear with me here, I'm a little tired and this might be rambling ;-;

So, the formula for calculating slope is \frac{y_{2} -y_{1}}{x_{2}-x_{1}}. I'm going to use those first two points to get my slope. We're going to say the first point is point 1 and the second point is point 2 (genius, i know lol). So, let's substitute in the x and y values.

\frac{9-12}{-3-(-6)}

And simplify...

\frac{-3}{3}

So, your slope is -1. We can use that. We just have to count down.

If the x is -2, the y is 8. If the x is -1, the y is 7. And if the x is 0....(drumroll please) the y is 6! So, your y intercept is 6.

<u>Third table</u>

Now, this table isn't very nice either and doesn't have an x as 0 for us. Hmpf. But we can still do what we did above. I'll just skip the explanation and you can observe my steps.

\frac{-3-(-5)}{9-3}

\frac{2}{6}

\frac{1}{3}

Let's count down....

If x = 3, y = -5

If x = 2, y = -5 1/3

If x = 1, y = -5 2/3

If x = 0, y = -6

8 0
3 years ago
What is the domain of the function 2 sqr (x-6)
meriva

Answer:

36? I think I’m not

Positive

Step-by-step explanation:

3 0
3 years ago
Need help with this problem
Zanzabum

Answer:

C. Priya needs to charge at least $21 per bracelet.

Step-by-step explanation:

117b - 505 \ge 1952

Add 505 to both sides.

117b \ge 2457

Divide both sides by 117.

b \ge 21

Answer: C. Priya needs to charge at least $21 per bracelet.

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Celinda and Elsa deliver a 24-minute presentation. They each present for the same amount of time. For how mar
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