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Dahasolnce [82]
3 years ago
8

Which number represents 4%?

Mathematics
2 answers:
Nuetrik [128]3 years ago
8 0
4/100 represents 4%. Hope it helps!
Helen [10]3 years ago
5 0

Answer:

0.04 or 4/100

Step-by-step explanation:

Think of a percentage as a very lazily written fraction. 4% = 4/100

Just convert the fraction to a decimal.

---

hope it helps

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Dara buys a small drink for $1.75. A large drink costs 1.6 times as much as a small drink.
natali 33 [55]

Answer:

2.6

Step-by-step explanation:

multiply 1.75 by 1.6

8 0
4 years ago
Read 2 more answers
Que presion manométrica debe de producir una bomba para subir agua del fondo del gran cañon ( elevación 730 m ) a indian gardens
Alexxandr [17]

Answer:

La presión manométrica debe ser 6,272,000 Pa = 61.9 atm

Step-by-step explanation:

La presión absoluta se refiere al valor de presión referido al cero absoluto o al vacío, sin presión atmosférica. Es decir, la presión absoluta es la presión con respecto al vacío total.

La presión manométrica es la que ejerce un medio distinto al de la presión atmosférica y representa la diferencia entre la presión real o absoluta y la presión atmosférica. Es decir, la presión manométrica se mide en relación a la presión atmosférica y se define como la diferencia entre presión absoluta (Pabs) y presión atmosférica predominante (Patm). La presión manométrica sólo se aplica cuando la presión es superior a la atmosférica.  

Entonces,  Pmanometrica = Pabs – Pamb

Para encontrar la presión a una profundidad h en un líquido sin movimiento, expuesto al aire cerca de la superficie de la Tierra, la presión manométrica puede ser calculada mediante:

Pmanometrica=ρ*g*Δh

donde ρ es la densidad del fluido, g la gravedad y Δh la variación en la altura.

En este caso:

  • ρ=1000 \frac{kg}{m^{3} } (densidad del agua)
  • g= 9.8  \frac{m}{s^{2} }
  • Δh=hfinal - hinitial= 1370 m - 730 m= 640 m

Reemplazando:

Pmanometrica=  1000 \frac{kg}{m^{3} } *9.8 \frac{m}{s^{2} } * 640 m

Resolviendo:

Pmanometrica= <u><em>6,272,000 Pa = 61.9 atm</em></u> (siendo 1 pascal = 9.869*10⁻⁶ atmósferas )

6 0
3 years ago
Consider this system of two linear equations.
katen-ka-za [31]

Answer:

Step-by-step explanation:

so these two lines cross at some point.. and they want to know the y point at which they cross... sooo..

solve them as a system to find the points that are common to both

Eq. 1)  5x -2y = 16

Eq. 2) -4x+6y=-15

i'll use the elimination method as these equations "lend" themselves to that way.. they are easy to solve that way .. in other words..

multiply Eq. 1 by 3  the add Eq. 2 .. to it... add the terms as columns....

    15x-6y = 48

<u> + ( -4x+6y=-15)</u>

=    11x+ 0y =33

x=3    

nice, now plug 3 in for x in one of the Eq.   try Eq. 1

5(3)-2y=16

15-2y=16

-2y =1

y = -\frac{1}{2}

since we're looking for the y coordinate...  that's your answer -\frac{1}{2}

4 0
3 years ago
-2x-9y=-25<br> -4x-9y=-23<br><br> Solution -1,3
Darina [25.2K]

Step-by-step explanation:

ask me if u dont understand

5 0
3 years ago
Kelly is taking a cross-country road trip. She was able to drive 325 miles in 2 days. If her car gets 30 miles to the gallon, ho
Zanzabum

Answer:

the awnser is 19,500

Step-by-step explanation:

you multiply 325 × 2=650 then you multiply 30×650=19,500

7 0
3 years ago
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