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Lady_Fox [76]
3 years ago
9

I need help with math!!!!

Mathematics
1 answer:
PilotLPTM [1.2K]3 years ago
7 0

Answer:

id say caculate :) 649.99 and 20% and the same for the others

Step-by-step explanation:

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Mrs. Jones decided to buy some pencils for her class. She bought 2 packages of pencils, and each package contained 42 pencils. T
lys-0071 [83]

Answer:

4

Step-by-step explanation:

42*2=84

84/21

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3 years ago
Explain the three different ways of writing a ratio and provide an example
Harman [31]

Answer: The most common way to write a ratio is as a fraction, 3/6. We could also write it using the word "to," as "3 to 6."

Step-by-step explanation:

you can write ratios as 3/6 , 3 to 6, or 3:6

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3 years ago
Staci is attending a music festival. The ticket to the festival costs $87.96. Staci plans to purchase $30.00 t-shirts from the e
alex41 [277]

Answer:

5 t-shirts

Step-by-step explanation:

200-87.96=112.04

112.04/20=5.6

So rhe most t-shirts Staci can buy is 5 t-shirts.

5 0
3 years ago
The plan of a terrace is shown at right. The scale is 2 inches : 6 feet. What are the length and width of the terrace? Find the
Anvisha [2.4K]

The length and width of the terrace are 15 feet and 6 feet respectively.

The area of the terrace is 90 ft²

The scale of the plan is 2 inches : 6 feet.

Therefore, 2inches represents 6 feet.

According to the drawing;

  • length = 5 inches
  • width = 2 inches

Therefore,

  • length of the terrace = 5 × 6 / 2 = 30 / 2 = 15 feet
  • width of the terrace = 2 × 6 / 2 = 12 / 2 = 6 feet

The area can be found as follows:

<h3>Area of a rectangle:</h3>
  • area = lw

where

l = length

w = width

Therefore,

area = 15 × 6 = 90 feet²

learn more on scale here: brainly.com/question/147532

3 0
2 years ago
An airplane is flying at a speed of 500 mi/h at an altitude of one mile. The plane passes directly above a radar station at time
d1i1m1o1n [39]

Answer:

a)s=\sqrt{1+d^2}

b)d(t)=500t

c)s(t) =\sqrt{1+250000t^2}

Step-by-step explanation:

d = Horizontal distance

s = the distance between the plane and the radar station

The horizontal distance (d), the one mile altitude, and s form a right triangle.

So, use Pythagoras theorem

Hypotenuse^2=Perpendicular^2+Base^2

s^2=1^2+d^2

a) s=\sqrt{1+d^2}

(b) Express d as a function of the time t (in hours) that the plane has flown.

distance = speed \times time

d(t)=500t

(c) Use composition to express s as a function of t.

s(t) =\sqrt{1+d^2}

using b

s(t) =\sqrt{1+(500t)^2}\\s(t) =\sqrt{1+250000t^2}

6 0
3 years ago
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