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3 years ago

Do these pairs of values (x and y) represent two quantities that are

Mathematics

2 answers:

Sedbober [7]3 years ago

7 0

Answer:

Step-by-step explanation:

3/5 is equal to .6. however it can be simplified from 6/10, 9/15, etc

but 4/6 cannot be simplified to 2/5

mojhsa [17]3 years ago

6 0

Answer: B) No, because not all of the pairs represent the same ratio

For each row, divide y over x

Row 1: y/x = 5/3 = 1.67 approximately

Row 2: y/x = 7.4 = 1.75

Row 3: y/x = 10/6 = 1.67 approximately

Row 4: y/x = 15/9 = 1.67 approximately

We see that row 2 has a ratio different from the others. If we were able to ignore this row, then the answer would be "yes x and y are proportional". However, we cannot ignore this row so that's why the answer is choice B.

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In the right -angled tringles began the ABC in the ED :8cm ,and DC :10cm then the length of the air

fgiga [73]

ED:8cm,DC:10 so the air is HD:18

7 0

3 years ago

Line Equation from Two Points

Verdich [7]

Hi!

We can use point-slope form to solve this.

$y-y_{1} =m(x -x_{1})$

$y_{1}$ and $x_{1}$ will be from one of the points.

First, we have to find $m$ , the slope. We can use the slope equation to get this.

$\frac{y_{1} -y_{2} }{x_{1} -x_{2} }$

Plug in your points:

$\frac{4-0}{8-(-8)} =\frac{4-0}{8+8} =\frac{4}{16} =\frac{1}{4}$

Your slope is $\frac{1}{4}$

Now plug points and slope into point-slope equation. We will use (8, 4).

$y-4=\frac{1}{4} (x-8)$

Now, if you want to get it into y = mx + b form, you have to solve for y:

$y-4=\frac{1}{4} (x-8)$

$y-4=\frac{1}{4} x-2$

$y=\frac{1}{4} +2$

Your equation is $y=\frac{1}{4} +2$

For more information on how to get the equation of a line when given two points, see here:

brainly.com/question/986503

7 0

2 years ago

Answer this question Angie and her friends are 3/4 of a pizza.Her brother joe ate 2/3 of what was left.How much did joe eat?

Alja [10]

If Angie and her friends ate 3/4 of a pizza, that means that 1/4 is left.
Joe ate 2/3 of 1/4 of a pizza. To find out how much he ate, multiply 1/4 by 2/3.

$\frac{1}{4}* \frac{2}{3}= \frac{2}{12}$ because you multiply fractions straight across.

Your answer is 2/12 or 1/6 of the pizza

4 0

2 years ago

Read 2 more answers

The solution shown for the equation is incorrect. What is the correct solution? What is the error?

Degger [83]

-9(3-r)=45
-27+9t=45
9r=45+27
R=72/9
R=8
The answer is 8 not -8

5 0

3 years ago

loria has some dimes and quarters. If she has 18 coins worth a total of $2.25, how many of each type of coin does she have?

VashaNatasha [74]

Answer:

dimes: 5