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3 years ago

I don’t understand how to do this!!!! HELP

Mathematics

1 answer:

Margarita [4]3 years ago

6 0

Let m = the total number of medals.

To find the total number of medals we can use either of the clues they gave us.

If Tara's team received 8 medals and that was 1/3 of the medals. That must mean that:

m x 1/3 = 8
What number divided by 3 is 8? Well, that is 24. Thus, the total number of medals is 24.

Note: we can check to see if 1/2 of 24 is 12, the total number of medals Jennifer team received, and it checks out!

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lesantik [10]

The answer is 21 7/8.

The quantity of the paper needed is the area of parallelogram with a height 3 1/2 and base 6 1/4. The area of a parallelogram (A) is the product of its height (h) and base (b):
A = h * b

We have:
$h = 3 \frac{1}{2} = 3 + \frac{1}{2} = \frac{3}{1} +\frac{1}{2}= \frac{3*2}{1*2}+\frac{1}{2}=\frac{6}{2}+\frac{1}{2}=\frac{7}{2} \\ \\ b = 6 \frac{1}{4} = 6 + \frac{1}{4} = \frac{6}{1} +\frac{1}{4}= \frac{6*4}{1*4}+\frac{1}{4}=\frac{24}{4}+\frac{1}{4}=\frac{25}{4}$

Thus, the area of paralleogram is:
$A = b * h = \frac{7}{2} * \frac{25}{4} = \frac{7*25}{2*4} = \frac{175}{8} = \frac{168+7}{8} = \frac{168}{8} + \frac{7}{8} = 21+ \frac{7}{8}=21\frac{7}{8}$

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3 years ago

A movie theater had tickets at $12 for adults, $7 for students and $5 for children under 12 years old. A total of 278 tickets we

mamaluj [8]

Answer:

Step-by-step explanation:

Multiply the members of the revenue equation by 2:

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Three linear equations in three unknowns. Solve.

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3 years ago

Please please help me

rjkz [21]

Answer:

D. 102.6 in²

Step-by-step explanation:

The area of the square is 9 in² (3 × 3 = 9)

The area of the rectangle is 30 in² (3 × 10 = 30)

The area of the circle is 63.585 (a = πr², a = 3.14 × 4.5² - remember that the radius of a circle is half of the diameter)

Now, we can add these numbers together. 9 + 30 + 63.585 is 102.585 in² which is 102.6 in² rounded to 1 decimal place.

Hope this helps!

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2 years ago

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ankoles [38]

I’m pretty sure it’s 6n

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3 years ago

What is the circumference of a circle with a diameter of 21cm, rounded to the nearest tenth

otez555 [7]

Answer:

Step-by-step explanation:

22/7 * 21 = 66cm

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