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Molodets [167]
4 years ago
15

The three inside angles (A,B and C) of a right angled triangle are in the ratio 7:18:11

Mathematics
1 answer:
Anastasy [175]4 years ago
6 0

This is overdetermined.  Without looking at the ratio (except for the order of the sides) the actute angles in a right triangle are complementary so the answer must be:

Answer: A=35°, C=90°, B=55°

We can do it the way they like.

7+18+11 =36

so to get 180 degrees we need to scale the ratio elements by a factor of 5.

7:18:11=35:90:55

A is the smallest.  We see C is indeed a right angle and B is complementary to A.

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How many solutions does 9x+5=9x+7
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There are 0 solutions to this problem because it cannot be re-arranged logically enough to come to a new conclusion.

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2 years ago
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Which equation is equal up to one-hundredth of 36? Is it 0.3*0.12 or 0.36÷0.12 or 0.3*1.2
Mumz [18]
Its 360 beacuse u multiply all of those numbers


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A car moves with an average speed of 45 miles/hour. How long does the car take to travel 90 miles? A. 2 minutes B. 2 hours C. 45
svlad2 [7]

We know that distance = rate(time). We need to solve for time here.

d = rt\\90 = 45t\\t = \frac{90}{45}\\t = 2


The car took 2 hours to travel 90 miles at a speed of 45 mi/hr


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3 years ago
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Original price: $38; Markup: 10% what is the price now
Solnce55 [7]

Markup: 11.11%

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3 0
3 years ago
The manager at a concert venue keeps track of the number of adult tickets and student tickets sold each day and the total money
poizon [28]

Answer: the number of adult and student tickets sold are (45, 29)

Step-by-step explanation:

Let x represent the number of adult tickets that were sold.

Let y represent the number of student tickets that were sold.

On Wednesday, a total of 74 tickets were sold. This means that

x + y = 74

x = 74 - y- - - - - - - - - - - - - - 1

If adult tickets are sold for $15 and student tickets are sold for $11 and the money collected was $994, it means that

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Substituting equation 1 into equation 2, it becomes

15(74 - y) + 11y = 994

1110 - 15y + 11y = 994

- 15y + 11y = 994 - 1110

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y = - 116/ - 4

y = 29

Substituting y = 29 into equation 1, it becomes

x = 74 - 29 = 45

6 0
3 years ago
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