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Goryan [66]
2 years ago
15

The sum of the measures of two angles is 140 degrees. The ratio of their measures is 3:4.

Mathematics
1 answer:
USPshnik [31]2 years ago
7 0

Answer: The measurement of the first angle would be 60 degrees and the second angle would be 80 degrees.

Step-by-step explanation: They both are equal to the ratio of 3:4 because 3 x 20 would be 60 and 4 x 20 is 80. When added together they would equal is 140 degrees.

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Using the table below, find the mean and median of the set of data.
Slav-nsk [51]

Using their concepts concept, we have that:

a) The mean of the data-set is of 81.6.

b) The median of the data-set is of 80.

<h3>What is the mean?</h3>

The mean of a data-set is given by the <u>sum of all observations in the data-set divided by the number of observations</u>.

In this problem, there are 2 + 8 + 6 + 3 + 9 = 28 observations, hence the mean is:

M = (70 x 2 + 75 x 8 + 80 x 6 + 85 x 3 + 90 x 9)/28 = 81.6.

<h3>What is the median?</h3>

The median of a data-set is the 50th percentile, the value that separates the median in two halfs.

This data-set has an even number of elements, hence the median is the mean of the 14th and 15th elements, as 28/2 = 14. Both elements are 80, hence the median is of 80.

More can be learned about the mean and the median of a data-set brainly.com/question/13202035

#SPJ1

5 0
1 year ago
A rectangular house measuring 50 feet by 24 feet is to have a gravel pathway of constant width built all around it. There is eno
Maksim231197 [3]
First, we determine the area of the rectangular house by multiplying the length by the width. That is,
             area of the house = (50 ft)(24 ft) = 1200 ft²
Given that all sides of the house should have the pathway, the length of the house plus the pathway should be 50+2x and the new width would be 24+2x. The new area minus the original area of the house should not be more than 345 ft². Thus, the equation would be,
                                   (50+2x)(24+2x) - 1200 ≤ 345 
3 0
2 years ago
A spinner is divided into 5 equal sections numbered 1 to 5. The theoretical probability of the spinner stopping on 3 is 20%. Whi
Natali5045456 [20]

.20 * 10000 =2000

Answer:

You should get 2000 3's in 10,000 spins (in theory)

6 0
3 years ago
use the numbers 8, 6, and 2 to create one operation to write an expression that includes one exponent and has a value of 8. use
riadik2000 [5.3K]

Answer:

Answer:

Step-by-step explanation:

1) One solution is to write, as our exponent:

2) Because this is special case of the Exponents Law, valid for every base ≠ 0.

3) Hence, including an exponent the numbers 6, 2 whose value is eight.

Therefore our expression is true

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Find the surface area of the composite figure​
Gnoma [55]

Answer:

=280 in^2

Step-by-step explanation:

----------------------------------------

Let's find the surface area of the pink rectangular prism first.

2*10=20+20=40

4*10=40+40=80

4*2=8+8=16

40+80+16=136

The surface area for the pink rectangular prism is 136 in^2.

-------------------->>>>>

Now, let's find the surface area of the green rectangular prism.

4*7=28+28=56

4*7=28+28=56

4*4=16+16=32

56+56+32=144

The surface area for the green rectangular prism is 144 in^2.

-------------------->>>>>

Now let's add the surface area of both rectangular prisms to find the surface area of the composite figure.

136+144=

=280 in^2

----------------------------------------

Hope this is helpful.

6 0
3 years ago
Read 2 more answers
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