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CaHeK987 [17]
3 years ago
8

What has to be the same in order to add fractions?​

Mathematics
1 answer:
RUDIKE [14]3 years ago
8 0
Answer: The denominator

Explanation: you can’t add 3/12 and 2/6. You would have to change it to 3/12 + 4/12.
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Indique la propuesta correcta con respecto a los instrumentos de medida: a) El Voltímetro A.C. Mide valor medio b) El Voltímetro
Gre4nikov [31]

Answer:

Las propuestas correctas son;

a) Voltímetro de CA Mide el valor medio

La magnitud del voltaje de corriente alterna varía periódicamente con el tiempo, dentro de un rango dado

El voltímetro de CA proporciona la lectura y, por lo tanto, mide el valor medio del voltaje, el voltaje pico o el R.M.S. valor de la tensión

b) El voltímetro de CC mide el valor máximo

Los valores de voltaje de un circuito de corriente de CC se fijan con el tiempo y, por lo tanto, el voltímetro de CC mide los voltajes máximos en el circuito.

c) El amperímetro de CA mide el valor medio

Similar a la medición de voltaje de CA, el amperímetro de CA mide el valor de corriente medio

d) El A.C. mide el valor efectivo

La raíz cuadrada media o R.M.S. valor es el valor medido por un R.M.S. Medidor de A.C.

e) El D.C. se conecta en paralelo

Todos los voltímetros se colocan en paralelo con el circuito desde el que se va a medir el voltaje.

Sin embargo, un amperímetro de CC está conectado en serie

Step-by-step explanation:

8 0
3 years ago
Find the unit rate : <br><br> Running 2.3km in 7 minutes
sp2606 [1]

Answer:

0.3

Step-by-step explanation:

pls give me brainliest plzzzzzz

4 0
3 years ago
Look at the figure. Drawing a transversal is the first step of which construction?
JulsSmile [24]

Answer:

Drawing transversal is the first step of the construction : A line parallel to HJ through point N

Step-by-step explanation:

To draw a perpendicular line at any point we need to draw an altitude at that point or angle of 90°

So, to draw a perpendicular line we do not need to construct a transversal at that point so drawing transversal can not be the step of construction : A line perpendicular to HJ through point N

But to construct two parallel lines : we need a transversal because by making equal corresponding angles two lines made be parallel.

Hence, Drawing transversal is the first step of the construction : A line parallel to HJ through point N

5 0
3 years ago
A student bought 1 box of crayons and 5 reams of paper for $54. She bought 5 boxes of crayons and 3 reams of paper $50. what is
Anettt [7]
Lets solve it using a system of equations, c is the price of crayons and p the price of reams of paper, so we have:
1c + 5p = 54
5c + 3p = 50
those equations represent the situation. Lets solve the system multiplying the first equation by -5 and adding it to the second, we have:
-5c - 25p = -270
<span> 5c + 3p = 50
</span>---------------------
0 - 22p = - 220
22p = 220
p = 10
and now substitute in the original equation:
<span>1c + 5p = 54
</span><span>1c + 5(10) = 54
</span>c = 4
7 0
3 years ago
what is a continent To eliminate the terms and solve for y in the fewest steps, by which constants should the equations be multi
Oliga [24]

Answer:

To eliminate solve for y, we need to eliminate x and we will do that by multiplying the first  equation by 8   and multiply the second equation by 9.

y=6

Step-by-step explanation:

In the equations:

9x + 3y = -18  -----------------------------------------------------------------(1)

8x + 7y = 10 --------------------------------------------------------------------(2)

To solve for  y, we will have to eliminate x

To eliminate x, we will follow the steps below;

multiply equation (1) through by 8   and multiply equation (2) through by 9

The resulting equations are

72x + 24y  = -144 ----------------------------------------------------------(3)

72x +  63y =  90  -----------------------------------------------------------(4)

Then we will go ahead and subtract equation  (4) from equation (3)

39y =234

divide both-side of the equation by 39

39y /39=234/39

y=6

7 0
3 years ago
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