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rodikova [14]
3 years ago
10

This makes no sense to me keep getting the wrong answers when i try to figure it out

Mathematics
1 answer:
satela [25.4K]3 years ago
4 0
To solve this problem, you'd want to start by finding the mean of the given numbers. To find the mean, add all the numbers together and divide by how many there are.

Next, you'll see that the question says one of the rents changes from $1130 to $930. So find the mean of all the numbers again, except include $930 in your calculation instead of $1130.

I got $990 as the mean for the given numbers, and $970 as the mean after replacing the $1130 with $930. Subtracting the two means gives you $20. So the mean decreased by $20.

Now for the median, all you need to do is find the median of the given numbers and compare them with the median of the new data. Because there are ten terms, you have to add the middle two numbers and divide by two. $990 + $1020 = 2010. 2010÷2 = $1005 as the first median.

The new rent is 930, so you have to reorder the data so it goes from least to greatest again. 745, 915, 925, 930, 965, 990, 1020, 1040, 1050, 1120. After finding the median again you get 977.5. Subtracting the two medians gives you $27.5 as how much the median decreased. Hope this helps!
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Answer:

6) c

7) d

Step-by-step explanation:

6) 25 + 15= 40

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Hope this helps!

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3 years ago
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Naily [24]

Answer:

D. 5/13

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3 0
3 years ago
Grapes cost $7.55 per pound. Evan wants to buy 4.8 pounds of grapes, and he estimates that he will need $32 to buy the 4.8 pound
gizmo_the_mogwai [7]
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8 0
3 years ago
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A tree trunk is pulled with a force of 3200 pounds by a truck's cable that makes an angle of 25° with the horizontal. What is th
elena-s [515]

Answer:

The vertical component of the force is 1352 pounds.

Step-by-step explanation:

Given that,

Force acting on the tree trunk, F = 3200 pounds

The truck's cable makes an angle of 25 degree with the vertical. We need to find the vertical component of the force. We know that the force is a vector quantity. The vertical component is given by :

F_y=F\sin\theta\\\\F_y=3200\times \sin (25)\\\\F_y=1352.37\ \text{pounds}

F_y=1352\ \text{pounds}

Hence, the vertical component of the force is 1352 pounds.

7 0
2 years ago
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