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3 years ago

1/4 +1/3 divided by4/5

Mathematics

1 answer:

ad-work [718]3 years ago

7 0

Answer:

2/3

Step-by-step explanation:

Do 1/3 divided by 4/5 first.

So we are going to flip 4/5 to 5/4. The equation is now:

1/4+1/3 times 5/4

Now we are going to do the multiplication since multiply and division is before adding and subtraction.

1/3 times 5/4 = 5/12

Now we have to add 1/4+5/12

With adding ( and subtracting) we have to find the common denominator which is 12

So now we have 3/12 + 5/12 = 8/12 which reduces to 2/3

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Am nevoie sa rezolvati urgent

vovikov84 [41]

Answer:

bhdjrhdb3rhbrhf be dbdbjdbdeydgsgeir

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3 years ago

Three students have started a fence-painting business. Working together, Pragnesh and Qazi can paint the fence in 2 hours. Simil

vlada-n [284]

Answer: 55.4 mins

Step-by-step explanation:

pragnesh and qazi = 2hrs

pragnesh and roghui = 3hrs

qazi and roghui = 4hrs

this means for every 1 hour they wold paint.

pragnesh and qazi = $\frac{1}{2}$ half of the fence

pragnesh and roghui = $\frac{1}{3}$

qazi and roghui = $\frac{1}{4}$ quarter of the fence

time taken when they all work together

= $\frac{1}{2}$ + $\frac{1}{3}$ + $\frac{1}{4}$

= $\frac{13}{12}$

= $\frac{12}{13}$

= 0.9231 × 60(mins)

= 55.4 mins

8 0

2 years ago

Less than 75% of workers got their job through internet resume sites. A researcher thinks it has increased.

Vera_Pavlovna [14]

Answer:

H0 : p = 0.75 against H1: p > 0.75 One tailed test.

Step-by-step explanation:

We state our null and alternative hypotheses as

H0 : p = 0.75 against H1: p > 0.75 One tailed test.

In this case H0 is not defined as p≤ 0.75 because the acceptance and rejection regions cannot be set up. Therefore we take the exact value of H0 : p= 0.75.

The claim is that the probability of the workers getting their job through the internet is greater than 75% or 0.75.

As H0 is supposed to be less than we choose H1 to be greater than equality.

5 0

3 years ago

Simplify 2^4 root 176 + 5^4 root 11

Misha Larkins [42]

Answer:

689 root 11

Step-by-step explanation:

simplify

16x4root11+5^4 root 11

64 root 11 +625 root 11

8 0

2 years ago

Multiply. Write your answer as a fraction in simplest form. −1/4×(−4/3)=

Sophie [7]

Answer:

$\frac{1}{3}$

Step-by-step explanation:

Given

- $\frac{1}{4}$ × - $\frac{4}{3}$ ( negative times negative = positive )

= $\frac{1}{4}$ × $\frac{4}{3}$ ( cancel the 4 on the numerator and denominator )

= $\frac{1}{3}$

5 0

2 years ago