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prohojiy [21]
3 years ago
5

There are 85 children in a school

Mathematics
1 answer:
Radda [10]3 years ago
7 0

Answer:

85/2=42.5~43

42 or 43 boys

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Which of the following represents the equation for volume?( A) L x H (B) L x W (C)
Y_Kistochka [10]
The answer to that would be D!
4 0
4 years ago
Find the value of x and y to the nearest tenth
Readme [11.4K]
The value of 'x' is 24.2 and the value of 'y' is 46.5.

To solve this, we do the following steps.
<u>Step 1:</u> Divide 'y' into 2 parts, 'a' and 'b'. 'a' would be the lower leg of the 45°-45°-90° triangle, while 'b' is the lower leg of the 30°-60°-90° triangle.<em>
</em><u>Step 2:</u> Given the hypotenuse (34) of the 30°-60°-90° triangle, solve for 'b' using the cosine of 30°.
    cos30° = b/34 [adjacent over hypotenuse]
    b = 34cos30° [cross-multiply]
    b = 29.4
<u>Step 3:</u> Solve for the 90° leg (the side opposite the 30° angle) using the Pythagorean Theorem. We will name this leg "h" (cuz height).
     l² + l² = hyp²
     29.4² + h² = 34²
     h² = 1156 - 864.36
     √h² = √291.64
     h = 17.1
<u>Step 4:</u> Solve for 'x' by using the 45°-45°-90° triangle ratio (1:1:√2). √2 would be the hypotenuse of the 45°-45°-90° triangle, while 1 would be both congruent legs.     
  Side 'h' is one of the legs; side 'a' is the other. Since these legs are congruent, 'a' also measures 17.1. Now all we need to do is solve for 'x', which is our hypotenuse. To do this, we simply multiply the measure of side 'h' or 'a' by √2.
     x = 17.1 × √2
     x = 24.2
<u>Step 5:</u> Now that we got the value of 'x', solve for 'y' by adding the measures of sides 'a' and 'b' together.<em>
</em><u />     y = a + b
     y = 17.1 + 29.4
     y = 46.5

And there you have it! <em>Hope this helps.</em>
     <em>
</em>
5 0
3 years ago
Hannah loves to shop. She can shop in 1/9 of the mall in 1/4 of an hour. If she continues at this rate, how much of the mall can
DiKsa [7]
4/9s of the mall per hour. 1/9 + 1/9 + 1/9 + 1/9
7 0
3 years ago
Plz I need help’mmmmmmmm
Anna007 [38]

Answer:

Therefore,

C=\pi d\\C\approx 3.14 \times d\\C\approx 43.96\ inches

Step-by-step explanation:

Let Assume Some Diameter of a Circle, to Solve it

Diameter = d = 14 inch ( say )

C =Circumference

Pi =constant = 3.14

To Find:

C = ?

Solution:

Formula for Circumference of a Circle is given as

C=\pi d

Where,

C = Circumference

d = Diameter

Now Substitute d = 14 inches we get

C=3.14\times 14\approx 43.96\ inches

This way we can find the circumference for any 'd' i.e Diameter

Therefore,

C\approx 43.96\ inches

6 0
4 years ago
The tolerance for a plank of wood at a factory is 3 yd + 0.002 yd. Which of the following
Jet001 [13]

Answer:

3.012 Yards

If that is an answer choice (which I suppose it is, as I have the sme question).

I will explain why:

Firstly the answer choices (A: 2.998, B. 3.001, C: 2.999) all fall below 3.002 yards, even though they aren't enough, it is still within a reasonable range, far closer to 3.002 than 3.012. Therefore, It would be your answer!~

3 0
3 years ago
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