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SCORPION-xisa [38]
3 years ago
12

The teacher is saying the answer is 7/15. how did she get that?

Mathematics
1 answer:
balu736 [363]3 years ago
8 0
I think this is how
<span /><span><span><span>you change the - to a +
8/12 + -1/5 then
2/3+-1/5 then
10/15+-3/15

10+-3
---------
15

7/15
</span></span></span>
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Sierra has enough fencing to make three chicken coops shown each has the same perimeter which has the greatest area?
andrezito [222]

Answer:

Top left triangle has the greatest area

Step-by-step explanation:

Area of a triangle:

area = base × height / 2

a = bh/2

Top Left Triangle:

a = 6 × 5.2 / 2

a = 31.2 / 2

a = 15.6

Top Right Triangle:

a = 8 × 2.9 / 2

a = 23.2 / 2

a = 11.6

Bottom Left Triangle:

a = 2 × 7.9 / 2

a = 15.8 / 2

a = 7.9

Compare areas:

15.6 > 11.6 > 7.9

4 0
2 years ago
May someone please help me?
otez555 [7]

Answer:

x=8°

y=29°

Step-by-step explanation:

vertically opposite angles are equal

so 5x+9°=y+20°

therefore 5x-y=11°

Alternate angles are equal

so 4x+17°=y+20°

therefore 4x-y=3°

equation 1....... 5x-y=11°

equation 2......4x-y=3°

using elimination method x=8°

y=29°

5 0
3 years ago
PLEASE PLEASE HELP :)
kvasek [131]

Answer:

There is no correlation between price and amount of milk bought.

Step-by-step explanation:

''change in price does not imply that people will buy more or less milk."

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5 0
3 years ago
Do the ratios 8/16 and 2/4 form a proportion
notsponge [240]

Answer:

Step-by-step explanation:

8/16=8:16

2/4=2:4

7 0
3 years ago
(( NEED HELP ))
sergiy2304 [10]

Answer:

  C)  x/2 +2y = 4

Step-by-step explanation:

Of the equations offered, only equation C has the given point as a possible solution.

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Since the graph is not given, we don't know if the given point is on the graphed equation.

3 0
3 years ago
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