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Evgen [1.6K]
2 years ago
7

Bobby is 28cm shorter than Daniel. Roy is 19 cm taller than Daniel. Find the difference in height between Roy and Bobby.

Mathematics
1 answer:
Tcecarenko [31]2 years ago
6 0

Answer:

There is a 47cm difference between the two....

So you just added 28cm to 19cm to get 47cm....

Because 19-(-28) is 19 + 28.

Hope this helps :D

Step-by-step explanation:

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1- un tinaco se llena en 8 horas utilizando 4 llaves. en cuanto tiempo se llenara con 7 llaves?
svetoff [14.1K]

Answer: 4.6 horas.

Step-by-step explanation:

Podemos calcular el tiempo necesario por una llave:

si sabemos que se llena en 8 horas con 4 llaves, entonces una sola llave va a tardar 4 veces 8 horas en llenar el tinaco, es decir, una sola llave tarda:

4*8h = 32 horas

ahora, si usamos 7 llaves, el tiempo necesario va a ser un septimo de eso:

(32 h por llave)/(7 llaves) = 32/7 horas = 4.6 horas.

4 0
2 years ago
4x-y=2 <br>what is the solution ​
Rudiy27

Answer= y=-_

Step-by-step explanation:

y= -2+4x

4 0
2 years ago
How many radians in 54 degrees
amm1812
54° × π/180 = 0.9425radians
5 0
3 years ago
90 hundreds = how many thousands
alina1380 [7]

we know that

90 hundreds=90*100\\ =9,000

and

one.thousand=1,000

So

Divide

9,000 by 1,000

\frac{9,000}{1,000} =9

therefore

the answer is

9

3 0
3 years ago
Read 2 more answers
Please help me!!!You will get 20 points...
pashok25 [27]

Use the rule of 3, note that we will convert the hours to minutes:

60 - 84
75 - x

(75 * 84) / 60 = x
6,300 / 60 = x
105 = x

105 minutes = 1h 45m


Hope it helped,

Happy homework/ study/ exam!

4 0
3 years ago
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