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4 years ago

47, , 55, 59, , 67 whats the next 2 numbers

Mathematics

2 answers:

malfutka [58]4 years ago

4 0

Step-by-step explanation:

47, _, 55, 59, _, 67

The pattern is to add 4 to each term to get the next term.

47, 51, 55, 59, 63, 67

So the next two terms are 71 and 75.

zmey [24]4 years ago

3 0

Answer: 75,83

Step-by-step explanation: add by 8 to every number

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3 years ago

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4 years ago

How do you solve it?

Elis [28]

At heart we're being asked for a line through two points,

$(40^\circ \textrm{ C}, 355 \textrm { m/s}) \quad \textrm{and} \quad (49^\circ \textrm{ C}, 360 \textrm { m/s})$

In general the line through (a,b) and (c,d) is

$(y-b)(c-a)=(x-a)(d-b)$

Check that you understand why both (a,b) and (c,d) are on this line.

Here our indepedent variable, instead of x, is T, temperature. Our dependent variable is v, velocity. Substituting,

$(v - 355)(49 - 40) = (T - 40)(360 - 355)$

$9(v - 355) = 5(T - 40)$

$v-355 = \frac 5 9 T - \frac{200}{9}$

$v= \frac 5 9 T - \frac{200}{9} + 355$

$v= \frac 5 9 T + \frac{2995}{9}$

That's our answer; let's check it.

When T=40, v = (5/9)40 + (2995/9) = 355 good

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