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3 years ago

Can someone please help and please make sure it’s right :)

Mathematics

2 answers:

ZanzabumX [31]3 years ago

8 0

From corresponding angles theorem, we can see the 2 angles are equal.

16x+13=18x-1

2x=14

x=7

Done!

Any questions just leave them in the comments and I will answer.

german3 years ago

6 0

Answer:

Step-by-step explanation:

i think you do 34x + 12

bc it is a same side interior angle and i think that equals 180 and then you

34x+12=180

-12 - 12

34x= 168

------ ------

34 34

----------------------

i.dk i think it is 5 bc you get 4.98 so you round the 8 and it makes it a 4.10 which is 5

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The average value of two positive numbers is 30% less than one of the two numbers. By which percentage is average value bigger t

Viefleur [7K]

Answer:

75% bigger

Step-by-step explanation:

Let the first number be x and the second be y.

So:

$Average = \frac{x + y}{2}$

And:

$Average = (1 - 30\%) * x$ -----30% less than x

Substitute $Average = (1 - 30\%) * x$ in $Average = \frac{x + y}{2}$

$\frac{x + y}{2} = (1 - 30\%) * x$

$\frac{x + y}{2} = (1 - 0.30) * x$

$\frac{x + y}{2} = 0.70 * x$

$\frac{x + y}{2} = 0.70x$

Cross multiply

$x + y = 0.70x * 2$

$x + y = 1.40x$

Collect like terms

$1.40x - x = y$

$0.40x = y$

Make x the subject

$x = \frac{y}{0.40}$

$x = 2.50y$

So, the average is:

$Average = (1 - 30\%) * x$

$Average = (1 - 30\%) * 2.50y$

$Average =0.70 * 2.50y$

$Average =1.75y$

Rewrite as:

$Average =(1 + 0.75)y$

Express as percentage

$Average =(1 + 75\%)y$

This means that the average is 75% bigger than the second number

6 0

2 years ago

Please help i need answer for test

Korvikt [17]

Answer:

He did the complete opposite of what he needed to do

Step-by-step explanation:

The error is that when you need to find x - intercept, you need to replace the value of y with zero, not the y value.

Cause otherwise, what he did here is to find the y - intercept

If you have any questions about the way I solved it, don't hesitate to ask me in the comments below :)

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3 years ago

Fifteen students were asked how much money they spent to the nearest whole dollar, in the school cafeteria one week. Their respo

dem82 [27]

Answer:

Check Explanation.

Step-by-step explanation:

The histogram displaying the amount spent by the 15 kids in the school cafeteria in one week is shown in the attached image to this answer.

Hope this Helps!!!

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3 years ago

Laura earns $8.50 per hour baby-sitting for her neighbor. How much will Laura

Alex

Answer:

Just multiply the money per hour by the number of hours

Step-by-step explanation:

8.50•6.5

7 0

3 years ago

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jek_recluse [69]

Answer:

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Step-by-step explanation:

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3 years ago

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