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vesna_86 [32]
2 years ago
5

- Mariana debe tomar dos pastillas; una cada 6 horas y otra cada 9 horas. Si a cierta hora toma las dos pastillas juntas, ¿despu

és de cuantas horas volverá a tomarlas simultáneamente?
Mathematics
1 answer:
Fofino [41]2 years ago
7 0

Answer:

Mariana takes the two pills together after 18 hours.

Step-by-step explanation:

Mariana must take two pills; one every 6 hours and another every 9 hours.

She take two pills together. Let she takes the two pills together after t hours at the time when she take initially.

To find the time to take the two pills together, take the least common multiple of 6 and 9.

6 = 2 x 3

9 = 3 x 3

So, the least common multiple is 2 x 3 x 3 = 18

So, she takes the two pills together after 18 hours.

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Suppose y varies directly with x. Write a direct variation equation that relates x and y. Then find the value of y when x= 18.
DIA [1.3K]

Answer:

y=kx

y=48

Step-by-step explanation:

y=kx

8=3k

k=8/3

y=kx

y=8/3 × 18

y=48

4 0
2 years ago
The price of a cycle is reduced by 25 per cent. The new price is reduced by a further 20 per cent. The two reductions together a
pantera1 [17]
It should be 40 percent.

You can think of it as starting with 100 as in 100 dollars or 100 tic tacs

If you take away 25%, you take away 25 tic tacs and now you only have 75.

From your 75, you take away 20% which is equal to 15. 75- 15=60

If you look at the end result of 60, you can see that that is 100 - 40 so 40% of the total was taken off
5 0
3 years ago
A researcher plans to study the causal effect of a strong legal system on economy, using data from a random sample of U.S. count
kogti [31]

Answer:

Based on expert opinion the regression does not suffer from omitted variable bias

Step-by-step explanation:

<em>Based on expert opinion the regression does not suffer from omitted variable bias </em>because its indicators taking values of 1 and 0 where 1 would represent taking action by the legal system  and 0 would represent not taking action by the legal system. as

The researcher plans to regress national income per capita based on the effect of the legal system

applying the formula for addressing omitted variable bias ( attached below )

7 0
3 years ago
I need help plzz its due TODAYYY
kobusy [5.1K]

Answer:

1st box: Asso. prop= m+(4+x)

2nd box: Comm. Prop= m+4=4+m

3rd box: iden. prop= m+0=m

4th box: Zero prop: m x 0=0

3 0
3 years ago
Help this is due today
Gelneren [198K]

Answer:

2 1/2 I think

Step-by-step explanation:

you find the L.C.M for all the fractions and multiply it. You should end up with whole numbers.

It should look like this

2n+3n=2

n= <u>2n+3n</u><u> </u> = <u>5</u>

2 2

n= 2 1/2

8 0
2 years ago
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