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Drupady [299]
3 years ago
14

a architect uses a scale drawing with a scale factor of 1 cm:20 feet. if a actually building is 120 feet tall how many centimete

rs would it e
Mathematics
1 answer:
agasfer [191]3 years ago
5 0
The answer is 6

Explanation:
1 cm : 20 feet
y cm : 120 feet
(We will use cross multiplication)
20y = 120*1
20y/ 20 = 120/20. (left-side: the 20’s will be cancelled)
y= 120/20
y= 6
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$20 iteam marked down 40%
Lana71 [14]

Answer:

$12

Step-by-step explanation:

Multiplier=0.6

20 times 0.6 = 12

5 0
3 years ago
Belinda is thinking about buying a house for $286,000. The table below shows the projected value of two different houses for thr
erik [133]

Answer: Part C: House 1 at 25 is at

$598820.5 (rounded to the

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5 0
3 years ago
It is known that x1 and x2 are roots of the equation x2−8x+k=0, where 3x1+4x2=29. Find k.
insens350 [35]

Answer:

The answer to your question is   k = -3233

Step-by-step explanation:

Data

x₁, x₂ are the roots

Equation l      x² - 8x + k = 0

Equation ll     3x₁ + 4x₂ = 29

k = ?

Process

1.- Write another equation

                     x₁ + x₂ = - 8

2.- Solve the system of equations by elimination

                      3x₁ + 4x₂ = 29          Equation l

                        x₁ +   x₂ = -8            Equation ll

-Multiply equation ll by -3

                      3x₁  + 4x₂ = 29

                    -3x₁   - 3x₂ = 24

                       0    + x₂ = 53

-Find x₁

                       x₁ + 53 = -8

                       x₁ = -8 - 53

                       x₁ = -61

2.- Find k

                      (x₁)(x₂) = k

                      (53)(-61) = k

                      k = -3233

3 0
3 years ago
Helpppp plzzz...plz give steps
uysha [10]

Answer:

Volume of hemisphere =

\frac{2}{3} \pi \: r {}^{3}

Given volume =

18\pi \: cube

\frac{2}{3}   \times \frac{22}{7}  \:  {r}^{3}  = 18 \times  \frac{22}{7}

So pi is there on both the sides so it will be cut from both LHS and RHS

\frac{2}{3}  \times r  {}^{3}  = 18

2 \times r {}^{3 }  = 18 \times 3

2 \times r {}^{3}  = 54

r {}^{3}  =  \frac{54}{2}

r {}^{3}  = 27

r = 3

Therefore value of r=3 inches

If you are helped with my answer pls tag me brianliest I really want it... Plzz

THANK YOU

3 0
3 years ago
Read 2 more answers
Michelle had a birthday party. She bought a bag of candy with 96 Starbursts, 72 Hershey’s, and 68 Reese’s. If she wants to make
svet-max [94.6K]
Im asnwering this from my first impression but if she wants the same amount of all of these candies and a maximum of bags she will have to put 1 type of candy in each bag, so the candy she has the fewest of controls the number of bags she makes, so she makes as many bags as there are Reese's

in conclusion she can make 68 bags filled with 1H, 1S and 1R
3 0
3 years ago
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