3 years ago

What are the answers to 2 and 4

Mathematics

1 answer:

podryga [215]3 years ago

7 0

The answer to 2 is 14 and the answer to 4 is b

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True of false a - b = a - (-b)

zmey [24]

Answer:

False

Step-by-step explanation:

a - (-b) would make it a + b

negative and negative equals positive

positive and positive equals positive

negative and positive equals negative

positive and negative equals negative

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3 years ago

Paul, Brendan, and Charlie are chopping wood. It would take Paul 10 hours to chop up one cord of firewood. It would take Brendan

Artist 52 [7]

Answer: It will take the 4 hours

6 0

3 years ago

Of the new cars at the dealership, 12% are red. if they have 50 new cars in their lot, how many cars are red

forsale [732]

It would be 12% of 50

50 * 12/100 = 600/100 = 6

so, 6 cars are red

4 0

3 years ago

A survey of 800 students yielded the following information: 519 were seniors, 430 were commuters, and 300 of the seniors were co

Ray Of Light [21]

Answer:

The number is $(S \ u \ C ) = 649$

Step-by-step explanation:

From the question we are told that

The sample size is n = 800

The number of seniors is S = 519

The number of commuters is C = 430

The number of of seniors that are commuters is $(S\ n \ C )= 300$

Generally the number of 800 surveyed students who were seniors or were commuters is mathematically evaluated as

$(S \ u \ C ) = S + C - ( S \ n \ C )$

=> $(S \ u \ C ) = 519 + 430 - 300$

=> $(S \ u \ C ) = 649$

3 0

3 years ago

A law firm offers a prepaid family plan that covers all of a family's legal services for as long as the family is enrolled

Step2247 [10]

Answer:

The extra monthly charge for the family would be $14.50

Step-by-step explanation:

let x equal the additional monthly charge for legal services

$10 + (25 + x)12 = 484 \\ 10 + 300 + 12x = 484 \\ 310 + 12x = 484 \\ 12x = 174 \\ x = 14.50$

8 0

2 years ago