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Hoochie [10]
3 years ago
14

The ratio of boys to girls in a class is 3:1. There are 36 students in the class. How many students are boys?

Mathematics
2 answers:
ziro4ka [17]3 years ago
6 0

HEYA FRIEND..

.

.

.

YOUR ANSWER IS 27

.

.

HOPE IT WILL HELP YOU UP.

.

HAVE A GREAT DAY

ĶÁŤÉ

Georgia [21]3 years ago
4 0

Answer:

27

Step-by-step explanation:

Let's call boys and girls 3x and x respectively. Since 3x + x = 36, x = 9. Boys = 3x = 3 * 9 = 27.

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Mrs. Dodson has a jar full of pennies and quarters. There are 120 coins in the jar worth a
Anton [14]

<em><u>Answer: 10.</u></em>

<em><u /></em>

<em><u>Step-by-step explanation:</u></em>

<em><u>DIVISION. 120/12.</u></em>

<em><u>That is hard! Here's a trick.</u></em>

<em><u>12x9= 99=9=108. Or 12x6=66+6=72.</u></em>

<em><u>We will stick with 12x9,  that equals 108.</u></em>

<em><u>We should add another 12 until we get to 120. </u></em>

<em><u>108+12=120. That is 10 times. The trick was...</u></em>

<em><u>dividing by 12 is hard, so lets say 12x4. I can put 4 and 4 together.</u></em>

<em><u>44 then and another 4. That is 48. So 12x4=48.</u></em>

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5 0
3 years ago
3.5 x + 4 + 2.7 x<br>How do I solve​
elixir [45]

Answer:

3.5x+6.7

Step-by-step explanation:

simplify step-by-step.

3.5x+4+2.7

Combine Like Terms:

=3.5x+4+2.7

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7 0
3 years ago
Select the correct answer from each drop-down menu.
vodomira [7]

Answer:

f(x) approaches positive infinity.

g(x) approaches negative infinity.

the y-intercept of f(x) is less than the y-intercept of g(x).

Step-by-step explanation:

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therefore, with x going to positive infinity, also f(x) goes to positive infinity.

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3 0
3 years ago
What is the radius of a sphere whose surface area is 100cm²?
wariber [46]

Answer:

r≈2.82

Step-by-step explanation:

Hope this helps and have a great day!!!

3 0
3 years ago
Read 2 more answers
Ruchi measured the area of her kitchen as 2.81 times 10 Superscript 4 square units. When she recorded the area, she wrote 2.81 t
yanalaym [24]

Answer:

The following statement is true:

She is incorrect because 2.81 times 10^4 is around 30,000 so the units must be smaller than feet. She most likely measured in inches.

Step-by-step explanation:

Area of the kitchen measured = 2.81 · 10⁴ = 28100

Lets evaluate all the statements

<h3>1) She is correct because dimensions of rooms must always be measured in feet and area would be square feet.</h3>

This statement is WRONG because if the dimension were measured in feet, the total area of the kitchen would be 28100 ft², which is too large of a kitchen. 28100 ft² can easily fit 10 medium sized full house of 2800 ft² or even a big building.

<h3>2) She is correct because 2.81 times 10^4 ft squared is equivalent to 2, 810 ft squared, which is an average size for a kitchen since area is always so much more than length</h3>

This statement is wrong because 2.81 ft· 10⁴ft = 28100 ft² NOT 2810 ft².

28100 ft² cannot be the size of the kitchen as discussed before.

<h3 /><h3>3) She is incorrect because 2.81 times 10^4 is around 30,000 so the units must be smaller than feet. She most likely measured in inches.</h3>

The statement is CORRECT because 2.81 in· 10⁴in = 28100 in² ≅ 30000 in² = 208 ft² , which can easily be the size of a kitchen.

<h3 /><h3>4) She is incorrect because 2.81 is a small number. She probably measured in yards to arrive at such a small value.</h3>

The number she calculated was not 2.81, it was 2.81 · 10⁴, which in yards become a very large value for a kitchen

3 0
3 years ago
Read 2 more answers
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