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3 years ago

Why does the fact family for 81 and 9 have only two number sentences

2 answers:

8 0

It only has two number sentences because 81 divided by anything else wont work only 9 would. Also since 9 times 9 is equal to 81

Phoenix [80]3 years ago

5 0

<span>Because there are only two things you can do with these two "family" members. 81 divided by 9 is 9. 9 times 9 is 81. Strictly speaking, there should be three in the family: 9, 9, and 81 9 is the square root of 81. 81 is 9 squared.</span>

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Least common multipul

Otrada [13]

ANSWER:

From 2 to 10=

Explanation:

2/2/10

5/1/5

/1/1

6 0

2 years ago

100%

mamaluj [8]

Answer:

44.4%

Step-by-step explanation:

FIND THE TOTAL NUMBER OF BALLOONS

4 red +6 blue +3 yellow +5 orange =18

( ORANGE +YELLOW /TOTAL × 100 %)

8/18 × 100%= 44.4 % CHANCE

8 0

3 years ago

A researcher surveyed people as they left a museum, asking whether they visited the gift shop and whether they watched the film

BARSIC [14]

Hey there!

P(y) = 0.46

P(x) = 0.49

P(y') = 0.54

P(x') = 0.51

P(y and x') = 0

x = person that watched the film

y = person that visited the gift shop

P(y and x') / P(x')

0.1 / 0.51 = 0.196

Now convert that into a percentage!

0.196 = 19.6%

Your answer is 19.6%

Hope I helped!

Let me know if you need anything else!

~ Zoe

5 0

3 years ago

mary ann is building a fence around the outer edge of a rectangular garden plot that measures 25 feet by 45 feet. She will set p

Shalnov [3]

Answer:

Step-by-step explanation:

find perimeter (25 + 25 + 45 + 45 = 140)

divide your perimeter by 5 (140 ÷ 5 = 28)

therefore you need 28 fence posts

4 0

3 years ago

When x is 4, y is 12. If y varies directly as x, which equation relates x and y?

zubka84 [21]

Answer:

12/4

Step-by-step explanation:

y varies directly with x basically means y÷x so you will have to divide the variables together. In other words, it basically means y varies proportionally as x

so in this case, it would be 12 divided by 4 resembling that y varies directly as x

5 0

3 years ago