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irinina [24]
2 years ago
6

Solve the equation. -4.6p - 6.3p + 3.9= -9.18

Mathematics
2 answers:
Advocard [28]2 years ago
8 0

Answer:

I got u

Step-by-step explanation:

start by adding together -4.6p and 6.3p to get 1.7p. rewrite the equation as 1.7p + 3.9 = -9.18 then subtract 3.9 on both sides to get 1.7p= -13.08 then divide that by 1.7 and p= -7.6

im not 100% sure so im sorry if its wrong

KiRa [710]2 years ago
4 0

Answer: P=1.2

Step-by-step explanation:

-4.6p-6.3p+3.9=-9.18

simplify

-10.9p+3.9=-9.18

-10.9p=-13.08

p=1.2

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Answer: 1 1/2

Step-by-step explanation:

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If x=3 calculate the value of x3-x
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Suppose y varies directly with x, and y = -4 when x = 25. What is x when y = 10? SHOW ALL YOUR WORK HERE OR YOU WON'T GET CREDIT
Stolb23 [73]

Answer:

x = -62.5

Step-by-step explanation:

y = kx

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y = (-4/25)x

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yes,yes,yes,no :) hope it helps

Step-by-step explanation:

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aliina [53]

Answer:

(a) Five

(b) Thirteenth

Step-by-step explanation:

We have the mean is 12.6 and

that 11 occurs 4 times, 12 occurs 7 times, 13 occurs 9 times, and 14 occurs f times.

How many children are there in all (that is the sum of the frequencies).

4+7+9+f

20+f

Alright so the mean could be found by doing:

\frac{4(11)+7(12)+9(13)+f(14)}{20+f}

But we are given this is also equal to: 12.6.

So we have

\frac{4(11)+7(12)+9(13)+f(14)}{20+f}=12.6

I'm going to simplify what I can on top.

\frac{245+14f}{20+f}=12.6

I'm going to write 12.6 as \frac{12.6}{1} because I want to cross multiply:

\frac{245+14f}{20+f}=\frac{12.6}{1}

(245+14f)(1)=12.6(20+f)

Distribute:

245+14f=252+12.6f

Subtract 12.6f on both sides:

245+1.4f=252

Subtract 245 on both sides:

1.4f=7

Divide both sides by 1.4:

f=5

There are five 14 years old.

(b) I would say 13 is good age to represent this bunch.

The means was 12.6 which when rounded is 13.

The mode is 13 because it is the most occurring

The median is also 13. Why? If you list out the data 13 will be the middle number. Or you could say there are 25 kids and if I divide it by 2, I get 12.5.  This means you only need to count to the 13th kid with the ages in order to tell with the median is.

There are 4 eleven yr olds.

There are 7 twelve yr olds.  That is 11 kids so far.

So the median has to be included in the 9 thirteenth yr olds.

3 0
3 years ago
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