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irga5000 [103]
3 years ago
13

If construction costs are $160,000 per kilometer, find the cost of building the new road in the figure

Mathematics
1 answer:
MAVERICK [17]3 years ago
7 0

Answer:

$4,160,000

Step-by-step explanation:

First, find the length of the new road in km using Pythagorean Theorem.

According to Pythagorean Theorem:

c² = a² + b²,

Where, c is the longest leg, which is the hypotenuse, a and b are the 2 other legs of the ∆.

Since we are calculating the lenght in km, convert each lenght of the two legs of the ∆ into km.

1 km = 1,000 m

10,000 m = 10 km

24,000 m = 24 km

c² = 24² + 10²

c² = 576 + 100

c² = 676

c = √676

c = 26 km

Lenght of the new road = 26 km

If cost of construction is $160,000 per kilometer, therefore, cost of constructing 26 km road = 160,000*26 = $4,160,000

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The answer would be A. $16.6 per linear foot


8 0
3 years ago
Read 2 more answers
Pls help i will give you 30 points asap
Olegator [25]

In y = mx + b form, the slope can be found in the m position and the y intercept can be found in the b position.

y = mx + b

y = 2x + 15

slope(m) = 2 and y int (b) = 15

The initial amount is the y intercept, which is 15. The rate of change (the slope) is 2

example :  

baskets picked in 1 hr :

y = 2(1) + 15

y = 2 + 15

y = 17

baskets  picked in 2 hrs :

y = 2(2) + 15

y = 4 + 15

y = 19

so the slope ( rate of change) is basically saying for every hr of picking, you pick 2 baskets...so your picking 2 baskets per hr.

The y intercept (15) is telling us that they already had 15 baskets to start with.

3 0
3 years ago
What is equivalent to 90/100
zysi [14]
\frac{90}{100}= \frac{\not10 *9}{\not10 *10} \\  \\  \boxed{\frac{9}{10}}
4 0
3 years ago
If a player rolls two dice and gets a sum of 2 or 12, she wins $20. if the sum is 7, she wins $5. the cost to play the game is $
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The expectation would be that the player would not get much money. 3, 4, 5, 6, 8, 9, 10, and 11 does not get a lot due to the entrance fee of $3. 20 - 3 = 17. 5 - 3 = 2.
6 0
3 years ago
Sophia wrote 260,880 as (2 times 100,000)+(6 times 10,000)+(8 times 100). What error did Sophia make
Romashka [77]

260,880 as (2 times 100,000)+(6 times 10,000)+(8 times 100).

here Sophia must consider 80 as 8 times 10

so that complete expression becomes

260,880 = (2 times 100,000)+(6 times 10,000)+(8 times 100)+(8 times 10)

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