2 years ago

A flower bed has a shape of a rectangle 9yards long and 3 yarss wide what is the area in square feet

1 answer:

8 0

It should be 81 square feet.

3 yards x 9 yards = 27 yards squares.

It asks for your answer in square feet, so you multiply by 3. This is because there are 3 feet in ever yard.

27 x 3 feet = 81 square feet.

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8 people are boarding a plane 2 have tickets for first class and board before everyone. In how many ways can these people board

mixer [17]

$2!6!=2\times1\times6\times5\times4\times3\times2\times1=1440$

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2 years ago

Shannon is 3 years older than Jenny. The sum of their ages is 33. How old are Shannon and Jenny?

Olin [163]

Answer: Shannon is 18 and Jenny is 15. Because 18+15=33

Step-by-step explanation:

6 0

3 years ago

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Drove that<br>sinA+ sin5=2 sin A +5/2 COSA -5/2

const2013 [10]

Put it in a more simplified form

6 0

2 years ago

I made some brownies and cookies to sell for a local fundraiser. The cookies sold for $0.75 each and the brownies sold for $1.25

juin [17]

Answer:

Brownies made the most money

Step-by-step explanation:

Let c = cookies

b = brownies

We sold 51 items so c+b = 51

Cookies are .75 and brownies are 1.25

.75c + 1.25 b = 53.25

We have 2 equations and 2 unknowns

c = 51-b

Substituting into the second equation

.75(51-b) + 1.25b = 53.25

Distribute

38.25-.75b +1.25b = 53.25

Combine like terms

38.25+.5b = 53.25

Subtract 38.25 from each side

38.25 +.5b -38.25 = 53.25 -38.25

.5b =15

Divide each side by .5

.5b/.5 = 15/.5

b = 30

Now find c

c =51-b

c = 51-30

c = 21

They sold 30 brownies and 21 cookies

30 brownies * 1.25 =37.50

21 cookies *.75 = 15.75

Brownies made the most money

3 0

2 years ago

Is (10 – 3) – 2 = 10 – (3 –) correct?

dusya [7]

Answer: No solution

Step-by-step explanation:

(10–3)–2=10–(3–)

10−3−2=10−3, this is false so it is not correct, and the answer for the equation is no solution.

6 0

3 years ago