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Dmitry [639]
3 years ago
14

I'm not sure how to solve the systems of equations problem below

Mathematics
1 answer:
Viefleur [7K]3 years ago
3 0
Solve the lower equation first

+12 on each side
7x=51
divide by 7
x=51/7

then use that to solve the upper equation
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An architect is designing an office building with n floors that will have an FM radio antenna 15.85 m tall on its roof. Each flo
sveticcg [70]

Answer:

h=3.9x+15.85 meters

Step-by-step explanation:

Let's say that the height of the floor just before the roof to the highest point of the roof is also 3.9 m, perhaps, we have an almost flat roof

Since the FM radio antenna is fixed on top of roof, the total height is that of previous floors and the antenna

Taking the building to have x number of floors with each floor having 3.9 m height, the function of height will be

h=3.9x + 15.85 meters

8 0
4 years ago
A house is purchased for $150,000 in 2002. The value of the house
Sunny_sXe [5.5K]

9514 1404 393

Answer:

  $67,516

Step-by-step explanation:

"Depreciates" means the value is getting smaller. The function that describes the situation is a <em>decay</em> function:

  y= a(1-r)^x

Here, a=150000, r = 0.07, and x=11. The value is predicted to be ...

  y = 150000(1 -0.07)^11 = 150000(0.93^11) = 67,515.53

The house is worth about $67,516 in 2013.

4 0
3 years ago
A local supplier offers packages of 25 cups at a cost of $2.58 per package, and bottles of syrup for $4.08 apiece. She has alrea
Goryan [66]

Answer:

Step-by-step explanation:

same

8 0
3 years ago
Read 2 more answers
-1 2/3 -2 1/6 A. Use the real number properties to write an equivalent expression for this sum.B. Find the sum. Express your ans
Burka [1]

Answer:

-3 5/6

Step-by-step explanation:

-1 2/3 = -5/3, and -2 1/6 = -13/6.  The LCD is 6.

We convert -5/3 to -10/6 and combine this result with -13/6:

-10/6 - 13/6 = -23/6

This last result can be rewritten as -3 5/6.

4 0
3 years ago
Anna paid $4 for renting a video game for 4 days. Which graph shows the relationship between the costs of renting a video game f
Andreas93 [3]
She paid $ 4 for renting a video game for 4 days...that means she paid $ 1 per day. 

A horizontal axis is labeled days, a vertical axis is labeled cost of rental.
(x,y)...x is gonna be ur days and y is gonna be ur cost of rental

ur equation is gonna be y = x

points are plotted (1,1) , (2,2), (3,3)

 ^^ this is the graph u use ...graph B
3 0
4 years ago
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