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klio [65]
3 years ago
9

What was the original number if after an increase of 40%, it became 420.

Mathematics
2 answers:
Nady [450]3 years ago
8 0

Answer:

300

Step-by-step explanation:

Solve for x.

x+(2/5*x)=420

x=300

Eva8 [605]3 years ago
6 0

Answer:

168

Step-by-step explanation:

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Lesechka [4]

Answer:

x=y^2-2

Step-by-step explanation:

This graph, is a parabola that opens to the right.

To answer this question, we just use the vertex form of a sideways parabola- x=a(y-k)^2+h.

In this case, the vertex is (-2, 0), and our value of a is 1, since it opens to the right.

This gives us: x=1(y-0)^2+(-2)

Which simplifies to: x=y^2-2.

Also, the answer to the previous two questions are wrong.

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2 years ago
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The team plays 20 matches. 

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An equivalent expression for n x a using only addition
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Question 13
natali 33 [55]

Answer:

y - 7 = (x + 5)

Step-by-step explanation:

Point-slope form: y - y1 = m(x - x1)

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