All categories

3 years ago

What is 2 1/4 · 9 /5 ?

Mathematics

2 answers:

mario62 [17]3 years ago

8 0

Answer: 81/20 = 4 1/20

Step-by-step explanation:

The dot between the two fractions implies product.

Therefore, in solving 2 1/4 . 9/5, we first convert the improper fraction to a proper fraction:

2 1/4 = 9/4

9/4 × 9/5 = ?

First, we multiply the numerators: 9 x 9 = 81

Then the denominators: 4 x 5 = 20

=81/20 = 4 1/20

Ne4ueva [31]3 years ago

6 0

Answer:

4 1/20

Step-by-step explanation:

You might be interested in

A sample of n = 16 scores has a mean of M = 40 and a variance of s2 = 64. What is the estimated standard error for the sample me

vaieri [72.5K]

Answer:

$S.E = 2$

Step-by-step explanation:

Given

$Mean = 40$

$s^2 = 64$ ----- variance

$n = 16$ ------------ sample

Required

Determine the S.E

The estimated standard error (S.E) for the sample mean is calculated using the following formula:

$S.E = \frac{SD}{\sqrt n}$

Where

$SD = Standard\ Deviation$

$SD = \sqrt {s^2}$

$SD = \sqrt {64}$

$SD = 8$

So:

$S.E = \frac{SD}{\sqrt n}$

$S.E = \frac{8}{\sqrt{16}}$

$S.E = \frac{8}{4}$

$S.E = 2$

Hence: the estimated standard error for the sample mean is 2

4 0

3 years ago

OMG GUYS HELP ASAP!!!! THIS IS MY HW ALSO!

natka813 [3]

One point: draw the line a bit lower such that it touches the circle. A line from the center of the circle to the line will be perpendicular to it.

Two points: draw the line somewhere through the circle. There will be two intersection points.

Three points: can't be done.

3 0

4 years ago

I need to know how to do this question 3^4logx(2)

Vladimir79 [104]

Hmmm did you mean $3^{4log_x(2)} \ ?$

4 0

3 years ago

Rasheed bought two kinds of candy bars, chocolate and toffee, that came in packages of 2 bars each. He handed out 2/3 of the cho

Gnom [1K]

Answer:

Rasheed bought 3 packages of chocolate and 5 packages of toffee.

Step-by-step explanation:

In this case we have to found the number of bars that multiplied by the fractions presented give us an integer number and meets with the fact that the bars are an odd number because the packages came in packs of two bars.

For the case of the chocolate we have to find a number that meets this characteristics, we try with the number 6:

$6*\frac{2}{3} =4$