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Rudik [331]
3 years ago
13

Mary is planning her birthday party. She's inviting 7 friends and wants to buy party favors. The favors she wants come in packag

es of 3. How many packages will she need to buy in order to have enough party favors for all of her guests? *
Mathematics
2 answers:
Makovka662 [10]3 years ago
8 0

Answer:

3 packages

Step-by-step explanation:

each package has 3

if she buys 1, she has 3 party favors

buys 2, has 6

buys 3, has 9

she can't buy 2 packages, then one friend doesn't get a party favor. so she will have to buy 3 packages, use 7, leave 2 extra.

please give thanks :)

pav-90 [236]3 years ago
8 0

Answer:3

Step-by-step explanation:3x2=6 not enough, so 3x3=9

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Answer:

x=66

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Step-by-step explanation:

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the base of this right prism is an equilateral triangle. the approximate height of the base is 15.6 cm. what is the approximate
Andrew [12]
Hello!

To find the surface area you can divide the prism into the 2D shapes it is made of

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2 triangles with bases of 18 and heights of 15.6
3 rectangles with side lengths of 20 and 18

First find the area of the triangles

The equation to find the area of a triangle is 

A =  \frac{hb}{2}

A is area
h is height
b is base

Put in the values you know

A =  \frac{18 * 15.6}{2}

Solve

A = 140.4

The triangles have an area of 140.4 units

Next we find the area of a the rectangles

To do this we multiply the sides

18 * 20 = 360

The rectangles have areas of 360 units

Now we add all the areas

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140.4 + 140.4 + 360 + 360 + 360 = 1360.8

The answer is B) 1360.8cm squared

Hope this helps!
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3 years ago
ANSWER TO BE NAMED BRAINLIEST, GET A THANK YOU , BE FRIEND REQUESTED ,
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jarptica [38.1K]

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mojhsa [17]

Answer:

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Step-by-step explanation:

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3 years ago
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