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crimeas [40]
3 years ago
7

Compare a number if it is decreased by 60% than increased by 80%.

Mathematics
1 answer:
gregori [183]3 years ago
8 0

Answer:

Step-by-step explanation:

x decreased by 60% = (1-0.60)x = 0.40x

x increased by 80% = (1+0.80)x = 1.80x

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Find the distance between points P(3, 4) and Q(4, -6) If necessary round to the nearest hundredth.
Andrei [34K]

Answer:

10.05 units

Step-by-step explanation:

We can find the distance between these points using the distance formula. The distance formula is:

\sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}

We know that x1 is 3, x2 is 4, y1 is 4, and y2 is -6, so we can substitute inside the equation.

\sqrt{(4 - 3)^2 + (-6 - 4)^2} \\\\\sqrt{1^2 + -10^2} \\\\\sqrt{1 + 100} \\\\\sqrt{101} \\\\\approx10.05

Hope this helped!

7 0
3 years ago
Can some one help thanks
kozerog [31]

Answer:

y = 8

Step-by-step explanation:

First substitute x with 6 in the equation

2y + 1/3(6) = 18

Multiple 1/3 with 6, which is 2

2y + 2 = 18

Solve the equation by subtracting 2 from both sides

2y + 2 = 18

    - 2     - 2

You get 2y = 16, so you divide 2 frm both sides

You get y = 8

4 0
3 years ago
Read 2 more answers
Prof Liu gave the same quiz to the students in her morning class and in her afternoon class. the average score for the two class
yaroslaw [1]

Answer:

Step-by-step explanation:

Given that Prof  Liu gave the same quiz to the students in her morning class and in her afternoon class. the average score for the two classes combined was 84.

(1) The average score for the students in the morning class was 80

(2) the average score for the students in the afternoon class was 86

Let m be the no of students in I class and n in II class

Total of I class = 80m and

Total of II class = 86n

Total of both classes = 80m +86n

Average =\frac{80m+86n}{m+n} = 84

m cannot be equal to n because in that case average would have been 83

If m >n, then say n =m+a

then average = \frac{80m+86m+86a}{2m+a} =84

Because 86 is more times added, average score would decrease hence we would not get 84.

So I class is getting less score of 80 to get a score average of more than 83 (the average) the class II should have more students.

4 0
4 years ago
ON A STUDY GUIDE! HELP PLEASE!<br><br> What is the value of x? <br><br> 6m + 3 = 2m - 4 / 2
Masteriza [31]

Subtract 2m from both sides : 4m + 3 = -2

Subtract 3 from both sides : 4m = -1

Divide by 4 on both sides : m = -1/4

8 0
3 years ago
Read 2 more answers
A fish is 4 feet under water and swims up 1 foot towards the surface. What is its position
vampirchik [111]

Answer: \Large\boxed{-3~\text{feet under water}}

Step-by-step explanation:

<u>Given information</u>

\text{Fish is 4 feet under water (-4)}

\text{Swims up by 1 foot (+1)}

<u>Derived expression from the given information</u>

\text{Position = Initial + Change}

<u>Substitute values into the given expression</u>

\text{Position = }(-4)+(1)

<u>Simplify the position</u>

\text{Position = }-3

<u>Therefore, the current position of the fish is:</u>

\Large\boxed{-3~\text{feet under water}}

Hope this helps!! :)

Please let me know if you have any questions

7 0
2 years ago
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