MATHEMATICS HIGH SCHOOL

Please look at the question and answer

Answers

Answer 1

Answer:

Answer:

no . of items = 10

Position of mean = (n+1)/2

= 11/2 = 5.5th item

In the data 5.5 item is the average of 5th and 6th item

median = (x+2+x+4)/2

or 25= (2x+6)/2

or 50 = 2x +6

0r 2x = 44

x =22

Answer 2

Answer:

X=23

Step-by-step explanation:

11,13,15,19,_,_,30,39,46

The middle number is the first dash which is represented by x+2 which is equal to 25

25-2=23 which is x

Dash 2 which is represented by x+4 is equal to 23+4=27

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Write equivalent expressions for each:A. 2X+5X+7-3B. 4X-2Y=10XC. 2P+12+2P-8
What is the answer to this question 10+10x10
A gallon of milk costs $4.20. What is the cost per quart? (1 gallon = 4 quarts)

You guys can help me plz idc if you explain

Answers

Y=Mx+b is the answer for 15 I think

7. A cargo train covers 375 km in 15 hours. Find: b) time taken to travel 770 km.

Answers

Answer:

30 hours 48 minutes

Step-by-step explanation:

Using the relationship

average speed = $(distance)/(time)$ = $(375)/(15)$ = 25 Km / hour

Then

time = $(distance)/(speed)$ = $(770)/(25)$ = 30.8 hours = 30 hours 48 minutes

Answer:

30.8 or 30 hours and 48 mins

Step-by-step explanation:

375 km > 15 Hours

Divide 375 and 15, equals to 25.

So, to proof that 375 is equals to 15 hours, divide 375 and 25 then you will get the answer 15. :)

Now, divide 770 and 25 to get the time taken to travel 770km.

And the answer is 30.8 hrs or... 30hrs and 48mins

Welcome ;)

An equilateral triangle has an altitude length of 27 feet. Determined the length of a side of the triangle

Answers

27 radical 2 feet because its a special 30-60-90 triangle

Albert says that the two systems of equations show below have the same solutions determine in-state whether you agree with Albert. Justify your answer

Answers

Recall what portion of earth is included in the biosphere

Simplify 6a^2 - 2c + 2a^2 + 2c^2

Answers

Answer: 8a^2 + 2c^2 - 2c

Step-by-step explanation: It is a simple addition between 6a^2+2a^2. The other terms remain the same.

Answer:

2 • (2a2 + c2 - c)

Step-by-step explanation:

jill is making a long cape she needs 4 1/3 yards of blue fabric for the outside of the cape she needs 3 2/3 yards of purple fabric for the lining of the cape

Answers

Answer:

Jill needs 8 yards of fabric to make a cape.

Step-by-step explanation:

Givens

Jill needs 4 1/3 yards of blue fabric for the outside of teh cape.
Also she needs 3 2/3 yards of purple fabric for the lining.

In order to know the total number of yards Jill needs to make a cape, we first need to transform each mixed number into fraction. We do that multiplying the whole part with the denominator and then adding it to the numerator, as follows

$4(1)/(3)=(13)/(3) \n3(2)/(3)=(11)/(3)$

Then, we sum both fractions

$(13)/(3) +(11)/(3)=(13+11)/(3)=(24)/(3) =8$

Therefore, Jill needs 8 yards of fabric to make a cape.

Hey there, just subtract 4 1/3 from 3 2/3 to get your answer. 4 1/3=13/3 and 3 2/3=11/3, 13*3-11*3/3*3=39-33/9=6/9, 6/9 simplified is 2/3

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Just one more What is 35 = 5 |x+6|-10