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olya-2409 [2.1K]
3 years ago
7

Two fifths plus one third equals

Mathematics
2 answers:
aleksandrvk [35]3 years ago
7 0
2/5 + 1/3
= 6/15 + 5/15
=11/15
andreev551 [17]3 years ago
4 0
Its 11/15.
u find the LCM of 3 and 5 which is 15 and to get to 15 from 3 and 5 you need to times 5 by 3 and 3 by 5 then u add the answers but keep the same denominator

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The perimeter of a triangle is 65 meters. The second side is 5 meters less than the first side The third side is 7
tangare [24]

Answer:

The length of each side is 31.5m, 26.5m, 7m

Step-by-step explanation:

Let the length of the first side of the triangle be x meters.

Then, the second side is x-5 meters.

The third side is given as 7 meters.

The perimeter is 65 meters

This gives us the equation:

65 = x + x - 5 + 7

65 - 7 + 5 = x + x

63 = 2x

x =  \frac{63}{2}  = 31.5

The length of each side is 31.5m, 26.5m, 7m

4 0
3 years ago
Sean has some candy bars that he wants to give away. He is going to give each person 1/18 of a bar, and he has 2 3/4 to give awa
julsineya [31]

Answer:

49 people

Step-by-step explanation:

Take the amount of candy and divide by the amount in a serving

2 3/4 ÷ 1/18

Change to an improper fraction

(4*2+3)/4 ÷ 1 /18

11/4 ÷ 1/18

Copy dot flip

11/4 * 18/1

198/4

49.5

Round down since people do not want half a serving

49 people

8 0
3 years ago
A chef used 1/9 of a bag of potatoes for a meal. If the potatoes fed 5 people. What fraction of the bag did each person get
tangare [24]

1/9 has to be divided by 5 if it is shared by others.

1/9 divided by 5 is 1/45 and each person would have 1/45

Answer is 1/45

6 0
3 years ago
PLEASE HELP! SUPER EASY QUESTION! THANK YOU!
kobusy [5.1K]

Answer:

Step-by-step explanation:

a+pR^2-2pr^2, since R=15 and r=7.5

A=225p-112.5p

A=112.5p

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8 0
3 years ago
Read 2 more answers
Not sure what it is, does anyone know?
patriot [66]

Answer:

110 degrees

Step-by-step explanation:

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7 0
3 years ago
Read 2 more answers
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