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Yakvenalex [24]
3 years ago
12

Plz help and explain

Mathematics
1 answer:
Nitella [24]3 years ago
5 0

Answer:

ask a teacher or parent for help.

Step-by-step explanation:

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The United States Air Force has 19 women for every 81 men enlisted. If a squadron has 250 members, approximately how many are me
Gnoma [55]

Answer:

Approximately the number of men is 203 and number of women is 47.

Step-by-step explanation:

It is given that the United States Air Force has 19 women for every 81 men enlisted.

It means the ratio between men and women is 81:19.

Sum of ratio is

81+19=100

Therefore for each 100 people, there are 81 men and 19 women.

Total number of peoples is 250.

\frac{250}{100}=2.5

In 250 members the number of men is

2.5\times 81=202.5

The numbers of persons cannot be a fraction values or a decimal value, therefore the number of men is 203.

In 250 members the number of women is

2.5\times 19=47.5\approx 47

Therefore approximately the number of men is 203 and number of women is 47.

5 0
3 years ago
In Triangle BCD, BC=BD, and angle B =13x-35, angle C = 5x-19, angle D=2x+14. Find the measure of each angle
aleksandr82 [10.1K]

Answer:

B = 108

C = 36

D = 36

Step-by-step explanation:

Given

B =13x - 35

C = 5x - 19

D=2x+14

BC = BD

Required

Determine the measure of each angle

The angles in a triangle sum up t 180. i.e.

B + C + D = 180

Since BC = BD, then C = D

B + C + D = 180 can then be rewritten as:

B + C + C = 180

B + 2C = 180

Substitute values for B and C

13x - 35 + 2(5x - 19) = 180

Open Bracket

13x - 35 + 10x - 38 = 180

Collect Like Terms

13x + 10x = 180 + 38 + 35

23x= 253

Divide both sides by 23

x = 11

To get the measure of each angle, substitute 11 for x in the expressions of B, C and D

B =13x - 35

B = 13 * 11 - 35

B = 108

C = 5x - 19

C = 5 * 11 - 19

C = 36

D=2x+14

D = 2 * 11 + 14

D = 36

5 0
3 years ago
Given (x)= 17- x^2, what is the average rate of change in f(x) over the interval [1, 5]?
mr_godi [17]

Answer:

The average rate of change of f(x) over the interval (1, 5) is -6.

8 0
3 years ago
Find the length of the side and perimeter of the square whose area is given<br>(a) 49 sq.m​
Alja [10]

Answer:

Length 7metres

Perimeter 28 metres

Step-by-step explanation:

Area of a square is L²

To get the length of one side is thus√L²

√49=7 metres

Perimeter will be length by 4

7×4=28 metres

7 0
3 years ago
Kylie is ordering 9 pizzas for her party. Each pizza is either thin crust or deep dish. Each thin crust pizza costs $20, and eac
nirvana33 [79]

Answer:

the answer is A. 2 thin crust pizzas

8 0
2 years ago
Read 2 more answers
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