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Tpy6a [65]
3 years ago
12

You need 50 necklaces for a craft fair. You begin with 20 necklaces and make 4 necklaces each hour. A. Choose an expression that

represents the number of necklaces you have after h hours.
Mathematics
1 answer:
alina1380 [7]3 years ago
5 0

Answer:

The expression representing Number of the necklaces after h hours is  20+4h.

Step-by-step explanation:

Given:

Number of necklaces in the beginning = 20

Number of necklaces made per hour = 4

Number of necklaces to be made = 50

We need to write the expression that represents the number of necklaces we have after h hours.

Solution:

Let the number of hours be denoted by 'h'.

now we can say that;

Number of the necklaces after h hours can be calculated by Number of necklaces in the beginning plus Number of necklaces made per hour multiplied by number of hours.

framing in equation form we get;

Number of the necklaces after h hours = 20+4h

Hence The expression representing Number of the necklaces after h hours is  20+4h.

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How many pounds of Brazilian coffee costing $ 6 per pound must be mixed with 27 lbs of Columbian coffee costing $ 4 per pound to
grigory [225]

Answer:

11 2/3 pounds.

Step-by-step explanation:

Let x pounds be the amount in pounds of Brazilian coffee.

x + 27  is the amount of coffee in lbs after the mixing.

So ,working in  values of dollars, we have:

6x + 4*27 = 4.5(x + 27)

6x + 104 = 4.5x + 121.5

1.5x = 121.5 - 104 = 17.5

x = 17.5/1.5 = 11 2/3 pounds answer

8 0
3 years ago
3(t-2)<br> Expand equation
MissTica

Answer:

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3 years ago
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A music teacher asked 23 students in the band how many hours they practiced playing their instrument each week. The results are
valkas [14]

The question is incomplete! Complete question along with answer and step by step explanation is provided below.

Question:

A music teacher asked 23 students in the band how many hours they practiced playing their instrument each week. The results are shown in the dot plot. Which statement best describes the data?

a. The data are skewed left, so most student's practice times are more than the mean practice time.

b. The data are skewed left, so most student's practice times are less than the mean practice time.

c. The data are skewed right, so most student's practice times are less than the mean practice time.

d. The data are skewed right, so most student's practice times are more than the mean practice time.

Answer:

The correct option is a.

The data are skewed left, so most student's practice times are more than the mean practice time.

Step-by-step explanation:

Refer to the attached box plot which shows number of hours the students spent on practice for playing their instrument each week.

When the data distribution is not symmetric around the mean then it is either skewed to right or skewed to left.

The given box plot is skewed to the left since the tail of the distribution on the left side is longer than the right side or in other words, most of the data is leaning to the right side of the curve.

Due to this, most student's practice times are more than the mean practice time.

A left skewed distribution is also known as negatively skewed distribution.

Therefore, we can conclude that the correct option is a.

a. The data are skewed left, so most student's practice times are more than the mean practice time.

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4 years ago
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Answer:

i dont get it?

Step-by-step explanation:

yes a right angle is 90^o

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Here is part of a train timetable.
Phantasy [73]

Answer:

1 hour 42 minutes

Step-by-step explanation:

Given :

Time table :

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0718 __________ 0900

0725 __________0832

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2 hours (60 - 18) minutes

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3 years ago
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