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3 years ago

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What is 3 2/5⋅2 1/3 ?as a fraction A. 5215B.6215C.71415D.8115

2 answers:

Sunny_sXe [5.5K]3 years ago

5 0

let's firstly convert the mixed fractions to improper fractions and then multiply.

$\bf \stackrel{mixed}{3\frac{2}{5}}\implies \cfrac{3\cdot 5+2}{5}\implies \stackrel{improper}{\cfrac{17}{5}}~\hfill \stackrel{mixed}{2\frac{1}{3}}\implies \cfrac{2\cdot 3+1}{3}\implies \stackrel{improper}{\cfrac{7}{3}} \\\\[-0.35em] ~\dotfill\\\\ \cfrac{17}{5}\cdot \cfrac{7}{3}\implies \cfrac{119}{15}\implies 7\frac{14}{15}$

sveticcg [70]3 years ago

4 0

Answer:

the answer is 5 2/15 i think this is right at least

Step-by-step explanation:

You might be interested in

Line segment AC where point B is located between A and C solve if AB=39 and AC=46 find BC

jeka94

Answer:

BC = 7

Step-by-step explanation:

AB + BC = AC

39 + BC = 46

BC = 46 - 39

BC = 7

6 0

3 years ago

Suppose that prior to conducting a coin-flipping experiment, we suspect that the coin is fair. How many times would we have to f

STALIN [3.7K]

Answer: b) 84

Step-by-step explanation:

Let p be the prior estimate of the required proportion.

As per given , we have

p =0.5 (The probability of getting heads on a fair coin is 0.5)

Significance level : $\alpha: 1-0.90=0.10\\$

Critical z-value (using z-value table ) : $z_{\alpha/2}=1.645$

Confidence interval width : w= 0.18

Thus , the margin of error : $E=\dfrac{w}{2}=0.09$

Formula to find the sample size ( if prior estimate of proportion is known.):-

$n=p(1-p)(\dfrac{z_{\alpha/2}}{E})^2$

Substitute the values , we get

$n=0.5(1-0.5)(\dfrac{1.645}{0.09})^2$

Simplify ,

$n=83.5192901235\approx84$ [Round of to the next whole number.]

Hence, the number of times we would have to flip the coin =<u>84</u>

hence, the correct answer is b) 84

8 0

3 years ago

Is -54 rational number whole number or integersis

Yuki888 [10]

Answer:

-54 is a integer and rational number

Step-by-step explanation:

7 0

4 years ago

Is this right and what's the answer for number 3?

Mumz [18]

That looks great! But say you chose number 2. You could say you organized it by multiplying single packs by the pieces of packs.

7 0

3 years ago

Read 2 more answers

Anumeha is mowing the lawns for a summer job. For every mowing job, she charges and initial fee of $10 plus a constant fee for e

ExtremeBDS [4]

Answer:

F(t) = 10 +5t

Step-by-step explanation:

Income equals the initial fee plus the hours worked times the hourly rate

We know the initial fee = 10

hours = t

hourly rate =r

F(t) = 10 + r*t

We know a 5 hour job is 35 dollars

35 = 10 + r*5

Subtract 10 from each side

35-10 = 10-10 +5r

25 = 5r

Divide by 5

25/5 = 5r/5

5 =r

The hourly rate is 5

F(t) = 10 +5t

8 0

3 years ago