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stepan [7]
3 years ago
14

I WILL GIVE BRAINLIEST

Mathematics
1 answer:
Ber [7]3 years ago
4 0

Answer:

The answer is 450

Step-by-step explanation:

I got this equation:

x- the speed in which the turtle walks

5x+5(x+10)=4.5x+150+x*(150)/(x+10)

I got x=40, x=-50/11, but you can't have negative speed, so the turtle's speed is 40 meters per hour. After that, I just plugged in x onto one of the expressions and got 450.

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In an arithmetic sequence, term 10 is 33 and term 22 is -3. What are the first 4 terms
Anarel [89]

9514 1404 393

Answer:

  60, 57, 54, 51, ...

Step-by-step explanation:

The general term of an arithmetic sequence is ...

  an = a1 +d(n -1)

We would like to find the first term (a1) and the common difference (d). We can use the two given terms to find these parameters.

  a10 = 33 = a1 +d(10 -1)

  a22 = -3 = a1 +d(22 -1)

Subtracting the first equation from the second, we get ...

  (-3) -(33) = (a1 +21d) -(a1 +9d)

  -36 = 12d

  -3 = d

Using this value in the first equation, we can find a1.

  33 = a1 +9(-3) = a1 -27

  60 = a1 . . . . . . . . . . . . . . add 27 to both sides

So, our sequence has first term 60 and a common difference of -3.

The first 4 terms are ...

  60, 57, 54, 51, ...

8 0
3 years ago
Answer ASAP!!!!!!! Segment BDSegment BD is a perpendicular bisector of segment ACsegment AC . AD=9x+3AD=9x+3 and DC=57DC=57 .
sergey [27]

AD = 9x + 3

DC = 57

ADC is a line, which is perpendicularly bisected by BD.

Thus AD = DC

9x + 3 = 57

9x = 57 – 3

9x = 54

x = 54/9

<span>x = 6</span>

8 0
4 years ago
3x+2y=16 solve for y
Vanyuwa [196]

Answer:

y = -3x/2 +8

Step-by-step explanation:

3x+2y=16

1. Isolate the y variable by transposing 3x to the right side.

2y=-3x+16

2y/2=-3x/2+16/2

y=-3x/2+8

Final answer: y = -3x/2 +8

8 0
3 years ago
PLEASE HELP AS SOON AS POSSIBLE
frutty [35]

Answer:

FALSE

TRUE

TRUE

Step-by-step explanation:

For median,

Arrange your numbers in numerical order.

Count how many numbers you have.

If you have an odd number, divide by 2 and round up to get the position of the median number.

If you have an even number, divide by 2. Go to the number in that position and average it with the number in the next higher position to get the median.

Source: https://www.verywellmind.com/how-to-identify-and-calculate-the-mean-median-or-mode-2795785

So for April median: 2.5, 3, 3.5, 3.5 (since we have 4 numbers we divide by 2 and we count by 2 places from left. Since we have even number data, we average 3 with the next higher position to get the median so (3+3.5)/2 = 3.25

For May apply same concept and you get median to be 2.25.

Median difference is 3.25-2.25 = 1

Therefore, statement 1 is false and statement 2 is true.

For average in May, add all numbers and divide by the number of data points so May= (2.5+3+3.5+3.5)/ 4 = 3.13

Apply same concept you for April and you get 2.38 as mean.

Mean difference is 3.13-2.38 = 0.75

Therefore, statement 3 is correct (true)

4 0
3 years ago
Y=–6x 2–12x – 2y=–4how many solutions does this linear system have?
MariettaO [177]
I think it would be 2 soulutions
7 0
4 years ago
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