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n200080 [17]
3 years ago
8

In a recent survey of 700 people, 15% said that red was their favorite color. How many people said that red was their favorite c

olor?
Mathematics
2 answers:
Alex17521 [72]3 years ago
6 0

Answer:

Answer: 105

Step-by-step explanation:

In a recent survey of 700 people, 15% said that red was their favorite colour. 105 people said read was their favorite colour.

Lelu [443]3 years ago
5 0

Answer:

105

Step-by-step explanation:

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1.Bobby walked 5 miles and then 1/2 the distance. What is his total distance?
gtnhenbr [62]

Answer:

7.5 miles

Step-by-step explanation:

Half of 5 equals 2.5. Bobby already walked 5 miles so you add the 2.5 since he walked another half of that distance. 5 + 2.5 = 7.5

6 0
3 years ago
If the speed of a car is 20 m s^-1 then what is its speed in km h^-1 ?<br>#no spam​
ivanzaharov [21]
  • Speed in m/s=20m/s

We have to convert it to km/h

\\ \sf\longmapsto 20\times \dfrac{3600}{1000}

\\ \sf\longmapsto 20\times \dfrac{18}{5}

\\ \sf\longmapsto 4times 18

\\ \sf\longmapsto 72km/h

8 0
2 years ago
Read 2 more answers
Solve for x. <br>a.5, <br>b.<br>c.9<br>d.10
Liula [17]
Your proportion should look something like this

\frac{x}{6} =  \frac{6}{4}

After cross multiplication, you should end up with this equation

4x=36

After dividing 4 on both sides, you should get that x=9
6 0
3 years ago
Read 2 more answers
The inverse of the function f(x)=<br><img src="https://tex.z-dn.net/?f=%20%5Csqrt%7Bx%20%2B%203%7D%20%20%2B%202" id="TexFormula1
irina [24]

Answer:

f^-1 (x)=x^2-4x+1

Step-by-step explanation:

y=sqrt(x+3)+2

x=sqrt(y+3)+2

sqrt(y+3)=x-2

y+3=(x-2)^2

y+3=(x-2)(x-2)

y+3=x^2-2x-2x+4

y+3=x^2-4x+4

y=x^2-4x+4-3

y=x^2-4x+1

3 0
3 years ago
A tree casts a shadow that is 125 feet in length. The angle of elevation with the sun is 32°. What is the height of the tree?
Molodets [167]

Answer:

Height of the tree is 78.11 feet.

Step-by-step explanation:

By applying the tangent rule in the right triangle formed,

Since, tanθ = \frac{\text{Opposite side}}{\text{Adjacent side}}

tan(32)° = \frac{h}{125}

h = 125(tan32°)

h = 125(0.62487)

h = 78.109

  ≈ 78.11 ft

Height of the tree will be 78.11 feet.

4 0
2 years ago
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