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3 years ago

Which dog food bag deal has the best price per pound?

Mathematics

2 answers:

gogolik [260]3 years ago

8 0

The answer would be $14.29 for 15lb
Hope that helped!
:)

Gnoma [55]3 years ago

8 0

I believe the answer is $12.25 for 13lbs because it is 0.94 cents per pound. $14.29 = 0.95, $24.25 = 0.97, $9.90 = 0.99.

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Give the equation of the circle centered at the origin and passing through the point(0,10)

beks73 [17]

Answer:

$x^{2} + y^{2} = 100$

Step-by-step explanation:

The equation of a circle has the following format:

$(x - x_{0})^{2} + (y - y_{0})^{2} = r^{2}$

In which r is the radius(half the diameter) and the centre is the point $(x_{0}, y_{0})$

Centered at the origin

This means that $x_{0} = 0, y_{0} = 0$

Passing through the point(0,10)

The radius is the distance of any point in which the circle passes to the centre.

Using the formula for the distance between two points.

$r = D = \sqrt{(0 - 0)^{2} + (10 - 0)^{2}} = 10$

$x^{2} + y^{2} = 10^{2}$

$x^{2} + y^{2} = 100$

3 0

3 years ago

The radius of a semicircle is 2 feet. What is the semicircle's diameter?

fomenos

Answer:

11/7 feet

Step-by-step explanation:

Perimeter of a circle = pi

Semicircle would be 1/2 of pi

1/2 × 22/7 × 1

You must divide by one to get the value of 1/2

11/7 is the answer

8 0

3 years ago

There are 20 packages of beef in a restaurant freezer. The average weight of 14 of the packages is 2 lb. The remaining packages

Shtirlitz [24]

I belive that the answer is about 180 lb.

3 0

3 years ago

Read 2 more answers

Please help and dont worry this isnt a test

Inga [223]

B because when 9 is divided by 5 it cant be 1

8 0

3 years ago

Carl can paint a room 3 hours faster than Jennifer can

Nata [24]

Jen take x hours.
Carl (x-3)hours.
Jen+carl take two hours;
This means;
In 1 hour, for they work
$\frac{1}{x} + \frac{1}{x-3}$
= $\frac{(x-3)+x}{x(x-3)}$
= $\frac{2x-3}{x(x-3)}$
Working together, they take two hours;
Take reciprocal of above equation and equate to two;
= $\frac{x(x-3)}{2x-3} =2$
$x^{2}$ -3x=4x-6
$x^{2} -7x+6=0$
$x^{2}$ -x-6x+6=0
x(x-1)-6(x-1)=0
(x-6)(x-1)=0
Take the bracket x-6=0 so that Carl works positive hours
x-6=0
x=6

8 0

3 years ago