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arlik [135]
3 years ago
7

Alice is buying decorations for a christmas party. she buys 3 strands of red ribbon that is $9 each. she buys 6 strands of white

ribbon for x dollars each. all together, she spent $28. How much were the white ribbon?
Mathematics
1 answer:
likoan [24]3 years ago
4 0

Answer:

Cost for White ribbon are $0.166 each.

Step-by-step explanation:

Given

\textrm{Cost of each Red ribbon} = $9

\textrm{Number of Red ribbon} = 3

\textrm{Total Cost of Red ribbon} = 9 \times3 = $27

\textrm {Cost of each white ribbon}=x

\textrm{Number of White ribbon} = 6

\textrm{Total Cost of white ribbon} =6x

\textrm{Total Money Spent} =  $ 28

\textrm{Total Money Spent} = \textrm{Total cost of red ribbon}+ \textrm{Total cost of white ribbon}

28=27+6x

6x= 28-27

6x=1

x=\frac{1}{6}

x=0.166

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What is the coefficient of (3y^2 + 9)5
PtichkaEL [24]

The coefficient of (3y² + 9)5 is <u>15</u>.

A polynomial is of the form a₀xⁿ + a₁xⁿ⁻¹ + a₂xⁿ⁻² + ... + aₙ₋₁x + aₙ.

Here, x is the variable, aₙ is the constant term, and a₀, a₁, a₂, ..., and aₙ₋₁, are the coefficients.

a₀ is the leading coefficient.

In the question, we are asked to identify the coefficient of (3y² + 9)5.

First, we expand the given expression:

(3y² + 9)5

= 15y² + 45.

Comparing this to the standard form of a polynomial, a₀xⁿ + a₁xⁿ⁻¹ + a₂xⁿ⁻² + ... + aₙ₋₁x + aₙ, we can say that y is the variable, 15 is the coefficient, and 45 is the constant term.

Thus, the coefficient of (3y² + 9)5 is <u>15</u>.

Learn more about the coefficients of a polynomial at

brainly.com/question/9071229

#SPJ1

6 0
2 years ago
What percent of 63.8 is 37.8?
lakkis [162]
To find percentage, you take 37.8 and divide it by 63.8 then multiply by 100

(37.8/63.8) × 100 = 59.25%
6 0
3 years ago
Find the measure of ZDCF. C F mDF = 49 G E MEG = 127 Find the measure of angle DCF​
AleksandrR [38]

Answer:

Step-by-step explanation:

Comment

If two secants intersect outside a circle (as these two do) then the angle at which they meet is 1/2 the difference between the intersected arcs. Put much simpler <DCF = 1/2 (arc EG - arc DF)

Givens

Arc EG = 127

Arc DF = 49

Solution

<DCF = 1/2(127 - 49)

<DCF = 1/2(78)

<DCF = 39

8 0
2 years ago
Can someone pls help meee!!
Elena L [17]

Answer:

Hello! answer: 40

We know 1 angle is 50 degrees so that means the angle across will also be 50 degrees so that means 2 will be 40 degrees cause that is a complimentary angle and complimentary angles add up to 90 Hope this explains well!

7 0
3 years ago
Read 2 more answers
To determine the number of squirrels in a conservation area a researcher cashers tags and releases 114 squirrels you later catch
Ede4ka [16]

Answer:

336 squirrels

Step-by-step explanation:

-This is a Mark-Recapture method.

-The population is estimated using the formula:

N=\frac{MC}{R}

where:

  • N-is the estimated population size.
  • M-is the number of individuals tagged
  • C- is the total number captured the second time(both tagged and untagged)
  • R-is the total number of tagged individuals recaptured.

#We substitute our values as follows to estimate N:

N=\frac{MC}{R}\\\\=\frac{114\times 97}{33}\\\\=335.0909\approx336

Hence, there are approximately 336 squirrels in the conservation area.

*population is always rounded up to the next whole number.

5 0
3 years ago
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