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natali 33 [55]
2 years ago
9

What is the most efficient first step to isolate the variable term on one side of this equation?

Mathematics
1 answer:
stich3 [128]2 years ago
3 0
Answer: subtract 5 from both sides

Explanation: get rid of the 5 before moving on to isolating the variable
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A battery manufacturer randomly tests 500 batteries and finds that 3 are defective.
ale4655 [162]
To find this answer, we must first find the percentage of batteries that are defective. We can do this by dividing 3 by 500.

3 / 500 = 0.006

So our percentage of defective batteries is 0.6%.

Now, to find out how many defective batteries would be in a batch of 12000, we just need to multiply the constant (percentage of defective batteries) by the amount in the new batch.

12000 * 0.006 = 72

In a shipment of 12,000 batteries, 72 will be defective, so the correct answer choice would be B.
Hope that helped =)
5 0
3 years ago
Una maquina que fabrica tornillos produce un 3% de piezas defectuosas. Si hoy se han apartado 51 tornillos defectuosos cuantos t
grin007 [14]

Answer:

1700 tornillos

Step-by-step explanation:

Dado que la máquina produce un 3% de tornillos defectuosos en un día. Produjo 51 tornillos defectuosos en un día.

Deje que el número total de tornillos producidos ese día sea x

Por lo tanto;

3% de x = 51

3/100 * x = 51

x = 51 * 100/3

x = 1700 tornillos

7 0
2 years ago
Ari lives 4/5 of a mile from the park she has already walked 3/4 of the way to the park. How far has ari walked
Olin [163]
3/4 of 4/5 = 3/4 x 4/5 = 12/20 = 3/5 of a mile (= 1056 yards)
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Are lines JN and KM parallel?
Ahat [919]

Answer:yes

Step-by-step explanation:

8 0
2 years ago
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What is the expression 3(x+6)+21+14x in simplest combined form
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Step-by-step explanation:

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