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3 years ago

Please help! Will mark Brainly!

Mathematics

1 answer:

Ulleksa [173]3 years ago

4 0

10 hot dogs and 5 hamburgers your graph would be 2y:1x

$\frac{2y}{1x}$

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Indicate the data relationship for each table.

Sonbull [250]

TABLE A = y=5x
TABLE B = y=-1/3x

5 0

3 years ago

Read 2 more answers

What is equivalent to 3(5+4)

Elden [556K]

Answer:

Step-by-step explanation:

4 0

3 years ago

Three solid shapes A, B and C are similar.

Archy [21]

Answer:

$\frac{3}{10}$

Step-by-step explanation:

step 1

Find the ratio of the height of shape A to the height of shape B

we know that

If two figures are similar, then the ratio of its surface areas is equal to the scale factor squared

Let

z-----> the scale factor

x----> surface area shape A

y----> surface area shape B

$z^{2} =\frac{x}{y}$

substitute

$z^{2} =\frac{4}{25}$

$z =\frac{2}{5}$

therefore

the ratio of the height of shape A to the height of shape B is equal to

$\frac{hA}{hB}=\frac{2}{5}$

step 2

Find the ratio of the height of shape B to the height of shape C

we know that

If two figures are similar, then the ratio of its volumes is equal to the scale factor elevated to the cube

Let

z-----> the scale factor

x----> volume shape B

y----> volume shape C

$z^{3} =\frac{x}{y}$

substitute

$z^{3} =\frac{27}{64}$

$z =\frac{3}{4}$

therefore

the ratio of the height of shape B to the height of shape C is equal to

$\frac{hB}{hC}=\frac{3}{4}$

step 3

Find the ratio of the height of shape A to the height of shape C

we have

$\frac{hA}{hB}=\frac{2}{5}$

$\frac{hB}{hC}=\frac{3}{4}$

Multiply

$(\frac{hA}{hB})(\frac{hB}{hC})=\frac{hA}{hC}$

$(\frac{2}{5})(\frac{3}{4})=\frac{6}{20}=\frac{3}{10}$

8 0

3 years ago

Paul has $20,000 to invest. His intent is to earn 11% interest on his investment. He can invest part of his money at 8% interest

hjlf

Answer:

In the 8% option , $5,000 should be invested

In the 12% option, $15,000 should be invested

Step-by-step explanation:

Let’s start with the total return.

Since the total return expected is 11%, the amount expected to be returned will be;

11/100 * 20,000 = $2,200

Now, let the amount invested at 8% interest be $x while the amount invested at 12% interest be $y

Mathematically;

x + y = 20,000 ••••••(i)

Now let’s work with the interest part;

On the 8% part, amount of interest expected is 8/100 * x

on the 12% part, amount of interest expected is 12/100 * x

8% of $x + 12% of $y = 2,200

Writing this fully mathematically, we have;

(8/100 * x) + (12/100 * y) = 2,200

8x/100 + 12y/100 = 2,200

Multiply through by 100

8x + 12y = 220,000 ••••••(ii)

Now we have two equations to solve simultaneously;

x + y = 20,000

8x + 12y = 220,000

From i, x = 20,000-y

Substitute this into ii

8(20,000-y) + 12y = 220,000

160,000-8y + 12y = 220,000

4y = 220,000 - 160,000

4y = 60,000

y = 60,000/4

y = $15,000

x = 20,000 -y

x = 20,000 - 15,000

x = $5,000

8 0

4 years ago

On a certain day the temperature in new york city was -4 degrees celsius and the temperature in austin was 10 degrees celsius. H

Ber [7]

+6 degrees is lower than new york

6 0

4 years ago