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Dennis_Churaev [7]
3 years ago
8

norman purchased 3.5 lb of his favorite mixture of dried fruits to use in trail mix the total cost was $16.87 how much does the

food cost per pound? Hurry please
Mathematics
1 answer:
Alex_Xolod [135]3 years ago
8 0
To do this we will divide d amount of dollars by d amount of lbs.

Lets do it:-
 
16.87 ÷ 3.5 = 4.82
1 lb of trail mix is for $4.82
 
CHECK OUR WORK:-
 
4.82 × 3.5 = 16.87
We were RIGHT!!
 
So, 1 lb of trail mix costs $4.82.
 
Hope I helped ya!! xD
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Find the measure of an exterior angle of a regular polygon with 20 sides. Round to the nearest tenth ?
Lisa [10]
To find the interior angle, you use the formula ((n - 2) x 180) / n (where n is the number of sides). 
So, ((20 - 2) x 180) / 20 = 162
To find the exterior angle, you merely take away the interior angle from 180.
180 - 162 = 18, so the exterior angle is 18 degrees

Another, easier, way is to just divide 360 by n. All exterior angles always add to 360. Thus, 360 / 20 = 18 degrees
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Which is smaller: an angle showing a turn through 1/8 of a circle or an angle showing a turn through 1/3 of a circle? Explain yo
Zolol [24]

Answer:

An angle showing a turn through 1/8 of a circle is smaller

Step-by-step explanation:

we know that

A complete circle represent 360°

so

<em>An angle showing a turn through 1/8 of a circle is</em>

(360\°)*(\frac{1}{8})=45\°

<em>An angle showing a turn through 1/3 of a circle is</em>

(360\°)*(\frac{1}{3})=120\°

therefore

An angle showing a turn through 1/8 of a circle is smaller

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4 years ago
Derive the equation of the parabola with a focus of (-5,-5) and a directrix of y=7.
adoni [48]

Answer:

y=-\frac{1}{24}(x+5)^2+1

Step-by-step explanation:

The given parabola has its focus at (-5,-5) and the directrix is at: y=7.

The equation of such parabola is given by the formula:

(x-h)^2=-4p(y-k)

The vertex of the parabola is the midpoint of (-5,-5) and (-5,7).

(\frac{-5+-5}{2},\frac{-5+7}{2} )=(-5,1)

The value of p is the distance from the (-5,-5) to (-5,1).

p=|1--5|=6

We substitute the values of the vertex and p into the equation to get;

(x--5)^2=-4(6)(y-1)

(x+5)^2=-24(y-1)

Or

y=-\frac{1}{24}(x+5)^2+1

3 0
3 years ago
A toy store had 947 games. It sold 515 of these games. How many games are at the store now
inn [45]

Answer:

432

Step-by-step explanation:

Subtract 515 from 947

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The sum of three consecutive natural numbers is 1020, find the numbers.
VLD [36.1K]

Answer:

339, 340, 341

Step-by-step explanation:

To find the 3 consecutive numbers, divide the sum by 3 to get the average. 1020/3=340. So the middle number is 340. That means the numbers are 339, 340, and 341.

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