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3 years ago

I need help with 7, 10, and 13

Mathematics

1 answer:

Alexus [3.1K]3 years ago

6 0

(2000 - 150) / 67
27

(3000 - 400) /6
434

(20 - 7) / .75
17

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Consider the following equation x= r-h/y.Solve the equation for h

Flura [38]

x= r - h/y subtract r from both sides

x-r = -h/y multiply each side by -y

-y(x-r) = h

-xy +yr = h

6 0

3 years ago

Read 2 more answers

What integer is equivalent to 25 3/2?

ELEN [110]

Answer:

$25\frac{3}{2} =26.5$

Step-by-step explanation:

This mixed number can be separated into 25 and $\frac{3}{2}$ . Convert the fraction to a decimal by plugging it into a calculator, then add 25.

If you meant what whole number is equivalent, that does not exist.

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2 years ago

Helppp this is my math test <br><br> Which model is 85% shaded?

Anettt [7]

Answer:

Model 1 represents 85% shaded area.

Step-by-step explanation:

Here, each model consists of equal sized rectangles.

Please refer to attached figure to know the model number.

Model 2 (on top right of question figure) contains a total of 20 such rectangles out of which 13 are shaded. As per formula of percentage:

$\text{Percentage of shaded area} = \dfrac{\text{Number of shaded rectangles}}{\text{Total number of rectangles}} \times 100\\\Rightarrow \dfrac{13}{20}\times 100 = 65\%$

Model 3 (on bottom left of question figure) contains a total of 16 such rectangles out of which 10 are shaded. As per formula of percentage:

$\text{Percentage of shaded area} = \dfrac{10}{16}\times 100 = 62.5\%$

Model 4 (on bottom right of question figure) contains a total of 16 such rectangles out of which 13 are shaded. As per formula of percentage:

$\text{Percentage of shaded area} = \dfrac{13}{16}\times 100 = 81.25\%$

Model 1 (on top left of question figure) contains a total of 20 such rectangles out of which 17 are shaded. As per formula of percentage:

$\text{Percentage of shaded area} = \dfrac{17}{20}\times 100 = 85\%$

Hence, model 1 is the correct answer.

3 0

3 years ago

Evaluate the following expression when x = 3 and y = 4:<br> 2x + y2 - 1

Nimfa-mama [501]

Answer:

Step-by-step explanation:

x = 3

y = 4

2x + y² - 1

2(3) + 4² - 1

2(3) + 16 - 1

6 + 16 - 1

22 - 1

4 0

3 years ago

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A bag contains 8 milk and 9 dark chocolates.

Triss [41]

Answer

P(milk)= 8/17

P(not milk)=9/17

Because 8+9=17

hope this was helpful!!!!

4 0

3 years ago