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Anit [1.1K]
3 years ago
14

The class president wants to survey the students at the high school about the selection of food offered by the school cafeteria.

The president knows that there are 150 boys and 175 girls in the high school. Which of the following is a representative sample of the high school population?
A
Sample 1: 10 boys and 10 girls

B
Sample 2: 10 boys and 35 girls

C
Sample 3: 6 boys and 7 girls

D
Sample 4: 7 boys and 6 girls
Mathematics
1 answer:
lesantik [10]3 years ago
5 0

Answer:

C . Sample : 6 boy and 7 girls

Step-by-step explanation:

Data :

  Boys = 150

  Girls = 175

So ratio between boys and girls

     175/150  = 1.67

So when boy is 6

   6 ×1.667 = 7

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The sum of the measures of two angles is 180 degrees. One angle measures 3a and the other angle measures 2a-25 Find a. Then find
e-lub [12.9K]
The sum of the angles equal 180 degrees, so we plug the angle values into an equation:
3a + 2a - 25 = 180.
By combining like terms, this becomes:
5a - 25 = 180
Now, if we add 25 to both sides to isolate a, we get:
5a = 205
Finally, we need to divide both sides by 5 to find a, and we get:
a = 41

Yay! Now we have a. Now we just plug them into the original values! So:
2(41) - 25
Multiply out:
82 - 25
The first angle is equal to 57.

Then we use the second angle:
3(41)
Multiply out:
123
The second angle is equal to 123.

Hope this helps!
~Chrys

8 0
4 years ago
If the population of the United States is 2.8 x 10^8 and each person spends about $150 per year going to the movies (or renting
Aloiza [94]

Answer:

4.2 x 10^10

Step-by-step explanation:

2.8 x 10^8 x 1.5 x 10^2 = 4.2 x 10^10

3 0
3 years ago
By selling an exhaust fan for Rs. 1470, a man gains profit of 1/6 of its cost price. Find its cost price.​
Neporo4naja [7]

Answer:

₹245 is the cost

Step-by-step explanation:

Given:

Cost of the fan = ₹1470

1/6th =  1470/1  × 1/6

(do not cross multiply and simplify)

=  ₹245

4 0
2 years ago
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