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Sveta_85 [38]
3 years ago
6

At a construction job for a mall there are 45 painters. Of these painters, 18 of them are painting the interior of the mall. Wha

t percent of these painters are painting the interior?
Mathematics
2 answers:
Jlenok [28]3 years ago
8 0

Answer:

40%

Step-by-step explanation:

18/45 × 100

2/5 × 100

40%

Alexandra [31]3 years ago
6 0

Answer:

0.4

Step-by-step explanation:

18/45=0.4

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You have 24 months left until you graduate and you plan on buying yourself a new $20,000 car on graduation day. If you invest $3
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Answer: No, the money won't be enough to buy the car

Step-by-step explanation:

you plan on buying yourself a new $20,000 car on graduation day and graduation day is 24 months time. If you invest $300 a month for the next 24 months.

The principal amount, p = 300

He is earning 4% a month, it means that it was compounded once in four months. This also means that it was compounded quarterly. So

n = 4

The rate at which the principal was compounded is 4%. So

r = 4/100 = 0.04

It was compounded for a total of 24 months. This is equivalent to 2 years. So

n = 2

The formula for compound interest is

A = P(1+r/n)^nt

A = total amount that would be compounded at the end of n years.

A = 300(1 + (0.04/4)/4)^4×2

A = 300(1 + 0.01)^8

A = 300(1.01)^8

A = $324.857

The total amount at the end of 24 months is below the cost of the car which is $20000. So he won't have enough money to buy the car

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3 years ago
Solve the equation. 4=−0.8n
MAVERICK [17]
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Country ​A, Country​ B, and Country C won a total of 130 medals. Country B won 10 more medals than Country C. Country A won 38 m
snow_lady [41]

Answer:

Country ​A = 84

Country​ B = 28

Country C = 18

Step-by-step explanation:

Country ​A, Country​ B, and Country C won a total of 130 medals;

A + B + C = 130 ......1

Country B won 10 more medals than Country C;

B = C + 10 .......2

Country A won 38 more medals than the total amount won by the other two;

A = B + C + 38 ........3

Substituting equation 3 to 1;

(B+C+38) + B+C = 130

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Substituting equation 2 into 4;

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4C + 58 = 130

4C = 130-58 = 72

C = 72/4 = 18

B = C + 10 = 18 + 10 = 28

A = B + C + 38 = 18 + 28 + 38 = 84

Country ​A = 84

Country​ B = 28

Country C = 18

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3 years ago
Three times four, plus two to the third power
Nadya [2.5K]
It is 20.because 3×4+2cubed is 20
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Vilka [71]
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