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Gemiola [76]
3 years ago
6

A surveyor is calculating the width of a canyon. He has taken the measurements shown below. What is the width of the canyon? Typ

e a numerical answer in the box below.

Mathematics
1 answer:
Serga [27]3 years ago
8 0

Answer:

480 ft

Step-by-step explanation:

To find the width (x), apply the similarity theorem of two similar triangles, which says that the corresponding lengths of two similar triangles are proportional.

Thus:

x/72 = 80/12

Cross multiply

12 × x = 80 × 72

12x = 5,760

12x/12 = 5,760/12

x = 480

Width of the canyon = x = 480 ft

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of the 80 guests invited to a wedding, 28 attended the wedding. What percent of the invited guests attended the wedding?
klasskru [66]

Answer:

35%

Step-by-step explanation:

% of guests who attended the wedding is number of guests who attended the wedding divided by the number of invited guests and the result multiplied by 100%

Therefore

28/80 x 100%

0.35 x 100%

35%

35% of the invited guests attended the wedding

4 0
3 years ago
Every set of three points is coplanar. <br> a. True<br> b. False
Ket [755]
We know that 3 point can creating always a plane 

so from this result the right choice is A. so is true 
4 0
3 years ago
The cost, C, in millions of dollars of producing T million tons of steel is modeled by the equation C = 220T + 1890.
kobusy [5.1K]

C = 220T + 1890.

Solve the equation for T.

220T = C - 1890

T = C/220 - 8.6

The steel produced is expected to be sold at a price of $310 per ton.

310 $/ton is a rate or slope. Write a linear equation where x is tons of steel produced and y is selling price of the steel.

y = 310x

Write and solve an equation to find the amount of steel produced if the selling price is equal to the cost of production.

* Here, note that the cost of production and tons of steel in the first equation is in the millions.  The equation we just wrote for the selling price was in x tons of steel. This only matters in regards to the units you specify because; million/million = 1

The unit multiplier of all variables must be specified as same. Either everything is in millions or not.

Here, I'll leave everything in millions, change x (tons of steel) to T (mill tons steel) and "y" to "S" in million dollars selling price.

S = 310T

Set equal to Cost equation.

220T + 1980 = 310T

Solve for T, million tons of steel produced.

1980 = 310T - 220T

1980 = 90T

T = 1980/90

T = 22 million tons steel produced


7 0
3 years ago
A model rocket is built to the scale 1:20, or 1 inch - 20 feet. The actual rocket is 4440 feet
tester [92]
The answer is 222. 20 divided by 1 is 20 so if you divide 4440 by 20 you get 222.


Hope this helped!
8 0
3 years ago
Read 2 more answers
Naomi is reading a book that has 420 pages she reads 35 pages each day how many days will naomi need to finish this book
posledela

Answer:

12 days

Step-by-step explanation:

420/35 to find amount of days to finish book

420/35 = 12

8 0
3 years ago
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