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tekilochka [14]
4 years ago
14

a dog groomer is trying to calculate part of her costs for the day. She knows that 5 feet of ribbon cost her $2.25. She used 6 1

/2 yards of ribbon for bows. How many feet did she use?
Mathematics
2 answers:
Paul [167]4 years ago
7 0
So since there are 3 feet in a yard all we have to do is plus 3 and 3 1/2 which is 6.5 and since there are 3 feet in a yard 3 X 6 1/2 is 19.5 hope this helped.
Julli [10]4 years ago
5 0
19.5

is the amount in feet


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The length of a rectangle is twice its width. The perimeter of the rectangle is 15 inches. What are the measurements of the leng
Airida [17]

Step-by-step explanation:

Let the breadth (b) of a rectangle be x

Then Length (L) = 2x

Now

Perimeter of the rectangle = 15 inches

Or, 2(L + b) = 15

2 ( 2x + x) = 15

2* 3x = 15

6x = 15

x = 15 / 6

x = 2.5 inch

Also Now

Length (L) = 2*2.5 = 5 inches

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Hope it will help :)

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3 years ago
If α and β are the zeroes of the polynomial 6y 2 − 7y + 2, find a quadratic polynomial whose zeroes are 1 α and 1 β .
ollegr [7]

Answer:

2y^2-7y+6=0

Step-by-step explanation:

We are given that \alpha and \beta are the zeroes of the polynomial 6y^2-7y+2

y^2-\frac{7}{6}y+\frac{1}{3}

We have to find a quadratic polynomial whose zeroes are 1/\alpha and 1/\beta.

General quadratic equation

x^2-(sum\;of\;zeroes)x+ product\;of\;zeroes

We get

\alpha+\beta=\frac{7}{6}

\alpha \beta=\frac{1}{3}

\frac{1}{\alpha}+\frac{1}{\beta}=\frac{\alpha+\beta}{\alpha \beta}

\frac{1}{\alpha}+\frac{1}{\beta}=\frac{7/6}{1/3}

\frac{1}{\alpha}+\frac{1}{\beta}=\frac{7}{6}\times 3=7/2

\frac{1}{\alpha}\times \frac{1}{\beta}=\frac{1}{\alpha \beta}

\frac{1}{\alpha}\times \frac{1}{\beta}=\frac{1}{1/3}=3

Substitute the values

y^2-(7/2)y+3=0

2y^2-7y+6=0

Hence, the quadratic polynomial whose zeroes are 1/\alpha and 1/\beta is given by

2y^2-7y+6=0

4 0
3 years ago
What is 4 1/3 * 2 1/7 as a mixed number in simplest form?
Ronch [10]

Answer:

9 2/7

Step-by-step explanation:

4 1/3=13/3

2 1/7=15/7

13/3*15/7= 195/21

=9 6/21

=9 2/7

4 0
4 years ago
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What Solution set of the equation 9x^2 +6x = -1
coldgirl [10]

Answer:

x=\{- \frac{1}{3}\}

Step-by-step explanation:

9x^2 +6x = -1 \\  \\ 9x^2 +6x  + 1 = 0\\  \\  {(3x + 1)}^{2}  = 0 \\  \\ 3x + 1 = 0 \\  \\ 3x =  - 1 \\  \\ x =   - \frac{1}{3}\\\\x=\{- \frac{1}{3}\}

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3 years ago
Which ordered pair is a solution to the inequality 7x-3y>10?
OlgaM077 [116]

it ain't possible.

unless Either X's value is given for u to get y.

6 0
3 years ago
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