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SCORPION-xisa [38]
2 years ago
12

In a middle school classroom there are 4 boys for every 6 girls. How many

Mathematics
2 answers:
Hoochie [10]2 years ago
3 0

Answer:

12

Step-by-step explanation:

SIZIF [17.4K]2 years ago
3 0

Answer:

12 boys

Step-by-step explanation:

4/(4+6) × 30

= 4/10 × 30

= 12

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Oliga [24]

Answer:

2,2

Step-by-step explanation:

4 0
2 years ago
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A triangle has an angle that measures 90°. What type of triangle could it be? (Choose all that apply)
OLEGan [10]

Right and scalene. A right triangle has an angle that measures to be 90° and using the pythagorean theorem, we know that the triangle is scalene, meaning that all three sides have different side lengths. (:

3² + 4² = 5²

4 0
3 years ago
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Products produced by a machine has a 3% defective rate. What is the probability that the first defective occurs in the fifth ite
labwork [276]

Answer: The required probability is 0.1328.

Step-by-step explanation:

Since we have given that

n = 5

Probability of success = p = defective rate = 3% = 0.03

Probability of failure = q = 1-p = 1 - 0.03 = 0.97

So, we will use "Binomial distribution":

probability that the first defective occurs in the fifth item inspected would be

P(X=1)=^5C_1(0.03)^1(0.097)^4\\\\P(X=1)=0.1328

Hence, the required probability is 0.1328.

6 0
2 years ago
A number x increased by 4 is less than -18
Bond [772]

x + 4 < -18

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5 0
2 years ago
Please help with this!!!
ehidna [41]

Answer:

  47.25 ft³

Step-by-step explanation:

The volume of the prism is given by the formula ...

  V = Bh . . . . . . . B is the area of the base, h is the height.

The height of the prism is given as 6 ft. The area of the base is the area of the triangular entrance. The formula for that area is ...

  A = 1/2bh . . . . . . b is the base, h is the height

Using the given values for the entrance base and height, we get ...

  A = 1/2(4.5 ft)(3.5 ft) = 7.875 ft²

Then the volume of the tent is ...

  V = (7.875 ft²)(6 ft) = 47.25 ft³

The tent volume is 47.25 cubic feet.

8 0
2 years ago
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