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Rus_ich [418]
1 year ago
15

For every left handed person, rhere are about 4 right handed people. If there are 30 students in a class, predoct the number of

students who are right handed
Mathematics
1 answer:
hjlf1 year ago
7 0

Answer:

4 right handlers for everytime 5 people

solution:

4/5. = x/30

x = (4)(30)/5

x= 24

there are 24 right handed people

Step-by-step explanation:

I am left handed so I know this is true :)

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What is the slope of the line ?
atroni [7]

Answer:

-2\frac{2}{3}

Step-by-step explanation:

The line passes through points (1,4) and (4,-4)

Slope (m) = change in y ÷ change in x

i.e m = \frac{-4 - 4}{4 - 1} = \frac{-8}{3} = -2\frac{2}{3}

8 0
3 years ago
Lines l and k are parallel to each other. A=120 degrees. and C=80 degrees. What is the number of degrees in B??
Aleonysh [2.5K]

Answer:

B = 160°

Step-by-step explanation:

This is how I solved it (I hope the explanation isn't too confusing):

Since L and K are parallel, I drew a straight line from A to B. By doing this, I'm making a triangle: ΔABC

Then I solved for the angles of the triangle. First, we are given that ∠C = 80° and ∠A = 120°. Although, when I drew the vertical line from A to B, it made a 90° (see attachment).

So what we basically did was break ∠A into two parts: an angle inside ΔABC and one outside. To find the interior angle, simply subtract 90° from 120° to get 30°.

There are 180° in a triangle, so add the two interior angles you know:

30° + 80° = 110°

Then subtract 110° from 180° to find the final interior angle which is:

180° - 110° = 70°.

To find the measure of angle B, you must add all of the parts together, so the 90° outside angle and the 70° interior angle:

90° + 70° = 160°

5 0
3 years ago
What is the maximum height of the apple equation which formula is -16x^2+56x+40
inn [45]

40; base it off of the y-intercept [C]. What is the unit of measurement?

7 0
3 years ago
The average price of a gallon of milk is $3.31. If the price increases .88% each year , how much will a gallon of milk cost in 2
musickatia [10]

Answer:

$3.94

Step-by-step explanation:

You will need to use the compound interest formula for this.

P(1+\frac{r}{n} )^{nt}

P = initial balance

r = interest rate

n = number of times compounded annually

t = time

Your equation will look like this:

3.31(1+\frac{.0088}{1} )^{20} = 3.94

5 0
3 years ago
Match the best measure to each situation. 1. The weights of wrestlers on the team varies by 74 lbs. mode 2. The most popular M&a
borishaifa [10]

Answer:

Situation                                                                                    Best measure  

1. The weights of wrestlers on the team varies by 74 lbs.     range


2. The most popular M&M's color is green.                           mode


3. The mean price for an mp3 download is $1.96.                 mean


4. Half of the students in 3rd hour PE are 15 or older.           median


Step-by-step explanation:

1. The weights of wrestlers on the team varies by 74 lbs. This is the range, the difference between the maximum and the minimum value.

2. The most popular M&M's color is green. This is the mode, the value more repeated.

3. The mean price for an mp3 download is $1.96. This is the mean.

4. Half of the students in 3rd hour PE are 15 or older. This is the median, the value in the half of the values


3 0
3 years ago
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