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densk [106]
3 years ago
10

A and B are independent events. Find P(A and B). P(A)=1/5, P(B)=3/7

Mathematics
1 answer:
Temka [501]3 years ago
8 0

Answer:

Step-by-step explanation:

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A unit of gas costs 4.2 pence on averge ria uses 50.1 units of gas a week she pays for the gas she uses in 13 weeks work out an
padilas [110]

Answer:

Step-by-step explanation:

Cost per unit of gas = 4.2 pence

Average units of gas used per week = 50.1 units

Total cost of gas per week = Cost per unit of gas × Average units of gas used per week

= 4.2 pence × 50.1

= 210.42 pence

= £ 2.1042

Amount ria pays for gas for 13 weeks = cost of gas per week × number of weeks

= 210.42 pence × 13

= 2,735.46 pence

2,735.46 pence = £ 27.3546

5 0
3 years ago
2.Yolanda is buying supplies for school. She buys n packages of pels at $1.40 per package and m pads of paper at $1.20 each. Wha
Lubov Fominskaja [6]

Answer: 1.4n represents the cost of n packages of pels.

1.20m represents cost of m pads.

Entire expression 1.4n + 1.20m represents total cost of n packages of pels and m pads.

Meaning of 1.4n  =  cost of n packages of pels.

Meaning of 1.20 m = represents cost of m pads.

where , 1.4 = Cost per package of pels

1.2 =Cost per pad of paper

Step-by-step explanation:

Given: Cost per package of pels = $1.40

Cost per pad of paper = $1.20

Number of packages of pels bought = n

Number of pads of paper bought = m

So, 1.4n represents the cost of n packages of pels.

1.20m represents cost of m pads.

Entire expression 1.4n + 1.20m represents total cost of n packages of pels and m pads.

Meaning of 1.4n  =  cost of n packages of pels.

Meaning of 1.20 m = represents cost of m pads.

where , 1.4 = Cost per package of pels

1.2 =Cost per pad of paper

7 0
3 years ago
Which correctly completes this number sentence?
mamaluj [8]
First w have to figure out the solution o the right side of the equation
So (insert long line here) = 8+32

We simplify it
(Insert long line here) = 40
So, you hen ask yourself what options are equal to 40 ( which is the second option)

Option b
5 0
3 years ago
Read 2 more answers
6(8x - 9x) = -4<br> answer in a fraction
Strike441 [17]

6.(8x - 9x) = -4

6.(-x) = -4

-6x = -4

x = -4/-6

x = 4/6

Simplify by 2

x = 2/3

5 0
3 years ago
Read 2 more answers
The perimeter of a rectangular painting is 344 centimeters. If the width of the painting is 79 centimeters, what is its width?
WINSTONCH [101]

Answer:

the equation is 2(l+w) so we do 2(93+w)=344 getting the answer of 79

Step-by-step explanation:

i think im 100 percent correct i took the test on flvs if I'm wrong just let me know

5 0
3 years ago
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