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andrey2020 [161]
3 years ago
5

Three eighths of the students in a class of 32 students are boys. How many students are boys?

Mathematics
2 answers:
kvv77 [185]3 years ago
6 0

Answer:

12 students are boys

Step-by-step explanation:

you can divide the number of students into 8 groups since 8 is in the denominator (4 per group), then multiply 4 by 3 since is in the numerator

nata0808 [166]3 years ago
4 0
12 because 1/8 is 4 4x3= 12
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Art [367]

Given expression is x² - 121

This is called Difference of Squared terms, we have a formula that is given as :-

a² - b² = (a - b) · (a + b)

Now using the above formula in the given expression, we get :-

x² - 121

x² - (11)²

here a = x and b = 11

x² - (11)² = (x - 11) · (x + 11)

but it says that student gave the answer as (x - 11) · (x - 11).

So, student's answer should be (x - 11) · (x + 11) instead of product of two (x - 11) terms.

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3 years ago
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2 years ago
Which of the following is equvalent to (16^3/2)^1/2<br>A. 6<br>B. 8<br>C. 12<br>D. 64
bagirrra123 [75]
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3 years ago
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Which co-ordinates do you plot to draw the graph of x + 2y = 3 ?
pychu [463]
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y=-1/2x+3
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3 years ago
An automobile manufacturer has given its van a 47.2 miles/gallon (MPG) rating. An independent testing firm has been contracted t
Romashka-Z-Leto [24]

Answer:

Test statistic = 1.664

Step-by-step explanation:

The hypothesis :

H0 : μ = 47.2

H1 : μ ≠ 47.2

Given that :

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Standard deviation, σ = 1.9

The test statistic :

(xbar - μ) ÷ (σ/√(n))

T = (47 - 47.2) ÷ (1.9/√(250))

T = (0.2 / 0.1201665)

Test statistic = 1.664

7 0
2 years ago
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