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Digiron [165]
3 years ago
7

Color Pencil Price per Pencil

Mathematics
2 answers:
vovangra [49]3 years ago
5 0
First, add up all the prices.

3.50 + 1.25 + .76 = 5.51

I tested a few numbers and I discovered that Mike bought 37 pencils. 

5.51 * 37 = 203.87
lisov135 [29]3 years ago
3 0
What you can do is trial and error. I started going multiplying each price by 10s and when I started multiplying by 30s I got a total of 37 colored pencils
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Brianne solved a quadratic equation. Her work is shown below, with Step 2 missing.
Alja [10]

Given:

The given quadratic equation is

3(x+4)^{2} = 48

or, (x+4)^{2} =16

And

The roots are given: x = -8 , x = 0

To find the missing step.

Let us solve the equation.

3(x+4)^{2} = 48

or, (x+4)^{2} = 16

or, x^{2} +8x+16 = 16 [ eliminating 16 from both the side]

or, x^{2} +8x = 0

or, x(x+8) = 0

or, x = 0, x = -8

Hence,

The step 2 could be x^{2} +8x = 0

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4 years ago
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10. Which equations could be used to solve<br> for x? Circle all that apply.
Wewaii [24]

Answer: B and D

Step-by-step explanation:

7 0
3 years ago
Please help please please help me help please
Nataly_w [17]

Answer:

slope = -4

Step-by-step explanation:

rise/ run = 4/1, but slope always minus, so slope = -4

8 0
3 years ago
Find the area of the circle to the nearest hundredth with r=4cm. d=18in.<br>​
Annette [7]

Answer:

  • 1.

r = 4 cm

A(circle) = π·r²

= π·(4cm)²

= 3.14·16cm²

= 50.24 cm²

  • 2.

d = 18 in

d = 2r => r = d/2 = 18in/2 = 9 in

A(circle) = π·r²

= 3.14·(9in)²

= 3.14·81in²

= 254.34 in²

5 0
4 years ago
When estimating the number of spheres contained in a prism we should account for the empty space between the spheres. To do this
Zielflug [23.3K]

Answer:

B. 8.0 cubic inches

Step-by-step explanation:

You need to find 190% of the volume of a gumball which is a sphere.

To find 190% of a quantity, multiply the quantity by 1.9.

volume of sphere = (4/3)(pi)(r^3)

diameter = d = 2 in.

radius = r = (1/2)d = (1/2)(2 in.) = 1 in.

volume of sphere = (4/3)(3.14159)(1 in.)^3 = 4.189 in.^3

The volume of a gumball is 4.189 in.^3

Now we need 190% of that volume.

190% of volume of sphere = 1.9 * volume = 1.9 * 4.189 in.^3 = 7.959 in.^3

Rounded to the nearest tenth, the volume is

B. 8.0 cubic inches

8 0
4 years ago
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