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Ghella [55]
3 years ago
10

If someone could help me out :)

Mathematics
1 answer:
VladimirAG [237]3 years ago
8 0

Answer: 2

Step-by-step explanation: 2/4 = 1/2

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Staples sells pencils in packs of 12 pencils for 3.50. Office max sells pencils in packs of 15pencils for 6.50.what is the diffe
love history [14]

We are given

Staples sells pencils in packs of 12 pencils for 3.50

so, staples cost is

=\frac{3.50}{12} per pencil

=0.29167 per pencil

Office max sells pencils in packs of 15 pencils for 6.50

so, office max cost is

=\frac{6.50}{15} per pencil

=0.4333 per pencil

now, we can find their differences

=0.4333-0.29167 per pencil

=0.14 per pencil............Answer

5 0
3 years ago
Solve for x: 4(x+5)=3(x-2)-2(x+2)
Zina [86]

Answer:

x = -10

Step-by-step explanation:

Solve the equation by simplifying according to PEMDAS. Then use inverse operations to solve.

4(x+5) = 3(x-2) -2(x+2)

4x + 20 = 3x - 6 - 2x - 4

4x + 20 = x - 10

3x = -30

x = -10

7 0
3 years ago
Paul needs to buy 5/8 pounds of peanuts. the scale at the store measures parts of a pound in sixteenths. what measures equivalen
faust18 [17]
10/16
5 x 2 = 10
8 x 2 = 16
there for the answer is 10 / 16
4 0
3 years ago
Read 2 more answers
A standard die is rolled 360 times in hopes of rolling a 5 or 6. So the probability of success is p=1/3. Find the standard devia
lana [24]

Answer: option 1 is the correct answer

Step-by-step explanation:

Number of times for which the die was rolled is 360. It means that our sample size, n is 360.

The probability of rolling a 5 or a 6 is 1/3. It means that probability of success,p = 1/3. The probability of failure,q is

1 - probability of success. It becomes

1 - 1/3 = 2/3

The formula for standard deviation is expressed as

√npq. Therefore

Standard deviation = √360 × 1/3 × 2/3

= √80 = 8.9443

Standard deviation is approximately 8.9

4 0
3 years ago
Find the sum of the series given in sigma notation.
Kryger [21]

Answer:

Option b is correct 175

Step-by-step explanation:

n = 7

k = 6

3k -2 ------1

put k = 6 in above eq. for finding first term

  a1 = 3(6) - 2  = 18 - 2 = 16

put k = 7 in above eq. for finding first term

 a2 = 3(7) - 2 = 21 - 2 = 19

 a3 = 3 (8) - 2 = 24 - 2 = 22

16, 19 , 22, ...  //Arithmetic series formation

a1 = 16 , a2 = 19

d = a2 - a1 = 19 - 16 = 3 //Difference of first two terms

Using sum forumula for arithmetic series

sum = \frac{n}{2}(2a1 + (n-1)d)

      = \frac{7}{2}(2a1 + (7-1)d)

      = \frac{7}{2}(2(16) + (6)3)

      =  \frac{7}{2}(32 + 18)    

      =  \frac{7}{2}(50)

      = 7 * 25

      = 175




4 0
3 years ago
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