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Cloud [144]
3 years ago
9

System of equations how to for this problem?

Mathematics
1 answer:
MrMuchimi3 years ago
6 0
Its 7y
 hope this helpeddd!
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The measure of an angle is 3 what is the measure of a complementary angle
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The measure of its complementary angle is 87 degrees. When two complimentary angles are added to each other they equal 90 degrees. 
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You are traveling to Colombia, where the currency is the Colombian peso (COP). The exchange rate is USD/COP 1,983.24 . How many
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You would have 198,324 pesos. All you have o do is multiply 1,983.24 by 100
8 0
3 years ago
Please help on one math question
kipiarov [429]

Hello from MrBillDoesMath!

Answer:

225

Discussion:

Sum ( 2n - 1)                  from  n = 1 to 15              

= Sum(2n) - Sum(1)        from n = 1 to 15

= 2 Sum(n) - Sum(1)       from n = 1 to 15

= 2* 15(15+1)/2  - (1 + 1 + .. + 1)

The first value comes from the fact that the sum of the first n integers is  n(n+1)/2. The latter value sums 15 1's.

= 2 * 15 * 16/2 - 15                    => 2/2 = 1

= 15*16 - 15                               => 15*16 = 240

= 240 - 15

= 225

Thank you,

MrB

6 0
3 years ago
Read 2 more answers
the length of a rectangle is 2 units less than a number, and the width is 4 units more than the length. which of the following e
cestrela7 [59]
L=n-2, W=4+L=n+2

A=LW, since L=n-2 and W=n+2 we have:

A=(n-2)(n+2)  so it could be this expression or the expansion

A=n^2-4
4 0
3 years ago
The Sears tower in Chicago is 1450 feet high. A model of the tower is 24 inches tall. What is the ratio of the height of the mod
miskamm [114]

The ratio of the model's height to actual height of tower is 1:725

Step-by-step explanation:

Given

Actual height of Sears Tower = H_a = 1450 feet

Height of Model = H_m = 24 inches

We can divide the actual height by the model's height to find the scale

Let z be the ratio of the height of the model to the actual height

z = \frac{H_m}{H_a}\\z = \frac{24\ inches}{1450\ feet}\\z = \frac{12\ inches}{725\ feet}

The ratio should be in same unit.

We know that

1 ft = 12 inches

Then

z = \frac{1}{725}\\z=> 1:725

Hence,

The ratio of the model's height to actual height of tower is 1:725

Keywords: Ratios, models

Learn more about ratios at:

  • brainly.com/question/10941043
  • brainly.com/question/10978510

#LearnwithBrainly

6 0
3 years ago
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