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deff fn [24]
3 years ago
11

Mark think of a number mark doubles it and add 2.9 to get answer of 30.6 form an equation with x from the information

Mathematics
1 answer:
lakkis [162]3 years ago
8 0

Answer:

2x + 2.9 = 30.6

Step-by-step explanation:

We are to represent the unknown number that Mark thinks of with x

If Mark doubles this unknown number, he multiplies it by 2 and the unknown number becomes - 2x

He then adds 2.9

The equation becomes 2x + 2.9

The answer of the above equation is 30.6

This gives : 2x + 2.9 = 30.6

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List P contains m numbers; list Q contains n numbers. If the two lists are combined to produce list R, containing m + n numbers,
Anarel [89]

Answer: YES

Step-by-step explanation:

We need to write out the expressions

P= {m}

Q= {n}

R= {m+n}

If 2m=n then we can say;

P= {½n} Q= {n} & R= {³/²n}

It is obvious that the smaller number in Q is greater than the largest number in P

We can make some assumptions.

Let n= (x,y,z)

Consequently,

P={½x,½y,½z} Q={x,y,z} and R= {1.5x,1.5y,1.5z}

Therefore the median will be the middle element,

Median of P= ½y

Median of Q = y

Median of R = 1.5y

And 1.5y>1.5y

Then we can agree that the median of R is greater than the median of both P and Q

5 0
4 years ago
If the temperature on the ground is 70 F then
harina [27]

Answer: try to (x) each one by the answer to -0.0035 +70

Step-by-step explanation:

5 0
4 years ago
Read 2 more answers
A person who is 3 m tall casts a shadow that is 6 m long. At the same time, a building
podryga [215]

Answer:

13.5 meters

Step-by-step explanation:

25 / 2 = 13.5

because if a human is 3 meters tall and cast 2 times the length of himself then if a building casts 25 meters then it should be 2 times less than its shadow.

6 0
3 years ago
I need helpp please
IrinaK [193]

Answer:

Total is $138.75 which is answer D

Step-by-step explanation:

15*3.5= $52.50

15*5.75= $86.25

Total is $138.75

3 0
3 years ago
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The question is in the Picture C:
Ghella [55]

no

you can't have two of the same numbers

3 0
3 years ago
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