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3 years ago

Use the magic penny parable to determine how much money you would have after 8 days.

Mathematics

1 answer:

Anit [1.1K]3 years ago

3 0

Use the formula T(x) = 0.01x2^x

X is the number of days.

T(8) = 0.01 x 2^8

T(8) = 0.01 x 256

T(8) = $2.56

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Which factor contributed to the growth of the us economy during the 20 century?

Sphinxa [80]

The United States increased its global influence.

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3 years ago

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3 years ago

Nicole sold 1 cherry pie and 9 pumpkin pies for $60. Lisa sold 11 cheery pies and 4 pumpkin pies for $90. what's the cost each o

bogdanovich [222]

Cherry pie is $ C.
Pumpkin pie is $ P.

C + 9P =60 -------> C=60 - 9P
11C+4P = 90

11(60 - 9P) +4P=90
660 - 99P + 4P = 90
-95P = -570
P =570/95 = 6
P=6
C=60-9*P=60 - 9*6= 60-54=6
C=6

Answer: 1 cherry pie -$6, 1 pumpkin pie - $6.

Check:
11C+4P = 90 , 11*6 +4*6 =90, 66+24=90, 90=90 True

8 0

3 years ago

Can someone please help me on this? I've been trying for hours and can't seem to find the answer.

REY [17]

Answer: The area of the shape is 90 ft.

Step-by-step explanation:

Draw a line so the shape looks like a triangle and small rectangle.

First, we have to find the area of the rectangle.

Area of rectangle: length x width

The rectangle has a length of 6 ft and a width of 3 ft.

Area of rectangle: 6 x 3 = 18 ft

Now to find the area of the triangle.

Area of triangle: 1/2 x base x height

The triangle's base: 15 - 3 = 12

The triangle's height: 6 + 6 = 12

Area of the triangle: 1/2 x 12 x 12

= 1/2 x 144 = 72ft

To find the area of the entire shape you have to add the area of the rectangle and triangle together.

Area of shape = Area of rectangle + Area of triangle

A of shape = 18 ft + 72 ft

The area of the shape is 90 ft.

Hope that helped!

3 0

3 years ago

A slice is made perpendicular to the base of a right rectangular prism, as shown in the figure.

o-na [289]

Answer: C. Rectangle

Step-by-step explanation:

The prism shown in the figure is a right rectangular prism, which is a tridimensional figure composed of six <u>rectangular faces</u>, and where each interior angle between the base and the side is a right angle (a $90 \°$ angle).

Hence, if we make a cross-sectional cut of this prism, the resultant two-dimensional figure is a rectangle.

This means the correct option is C.

4 0

3 years ago