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PSYCHO15rus [73]
3 years ago
12

The cost of 100 mechanical pencils is $42.60. The cost of 100 colored pencils is $32.60. How much more does one mechanical penci

l cost than one colored pencil?
Mathematics
2 answers:
yarga [219]3 years ago
4 0

Answer:

The answer your looking for is 10 cents.

creativ13 [48]3 years ago
3 0

Answer: 10 cents

Step-by-step explanation:

First find the unit rate of each item.

$42.60 divided by 100= 0.426

$32.60 divided by 100= 0.326

Then find the difference

0.426 minus 0.326= 0.1 or 10 cents.

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Which of the following congruence statements are correct?
solong [7]
Only B and F are true. The letters are set up so the parts that you choose must have the letters in the same place on each triangle.

So if ABC is a triangle congruent to PQR
Then AB is congruent to PQ because AB are the first 2 letters of ABC and PQ are the first 2 letters of PQR.
AC is congruent to PR (why?) 
8 0
3 years ago
4. Lin runs 4 laps around a track in 9 minutes at a constant speed.
Alexxx [7]

Answer:

Number of minutes per lap = 2.25 minute

Number of lap per minute = 0.444 lap (Approx)

Time taken for 15 lap = 33.75 minutes

Step-by-step explanation:

Given:

Number of laps = 4

Time taken = 9 min

Computation:

Number of minutes per lap = 9 / 4

Number of minutes per lap = 2.25 minute

Number of lap per minute = 4 / 9

Number of lap per minute = 0.444 lap (Approx)

Time taken for 15 lap = 15 x 2.25

Time taken for 15 lap = 33.75 minutes

3 0
3 years ago
A circle with radius \pink{9}9start color #ff00af, 9, end color #ff00af has a sector with a central angle of \purple{120^\circ}1
GrogVix [38]

Answer:

Area of sector = 84.861

Step-by-step explanation:

Given

The radius of the circle = 9

central angle of sector = 120^{o}

value of pi π = 3.143

To find : the area of sector = ?

We know that the formula to calculate area of sector is given as:

area of sector = (π r^{2}Θ)/ 360^{o}

where, r  is radius and Θ is the central angle of the sector

Substituting the known values in above formula, we get

area of sector = (3.143 x 9^{2} x 120^{o}) / 360^{o}

                        = 84.861

Hence area of sector is 84.861

3 0
3 years ago
Read 2 more answers
Please help!!!!!!!!!!
Dmitriy789 [7]

Answer:

1. c.

2. a.

3. b.

Step-by-step explanation:

Remember f(x) = y

1. f(x) = y = 2/5x+8

2. f(x)= y - 8 = x => y = 8 +x

3. f(x) = y = x - 8

3 0
2 years ago
Jose takes 120 minutes to weed 6 equal rows of vegetable plants in his garden. What is his unit rate
Zarrin [17]

Answer:

3 rows/hour

Step-by-step explanation:

It is given that, Jose takes 120 minutes to weed 6 equal rows of vegetable plants in his garden.

120 minutes = 2 hours

We need to find the unit rate per hour for weeding these rows of his garden. It can be calculated as follows :

R=\dfrac{6}{2}\\\\R=3\ \text{rows/hour}

So, the rate for weeding these rows of his garden is 3 rows per hour.

6 0
3 years ago
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