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Viefleur [7K]
2 years ago
6

Melly was n years old last year. How old will she be in 4 years time?

Mathematics
2 answers:
deff fn [24]2 years ago
6 0

Answer:

n + 5

Step-by-step explanation:

if last year melly was N year old, she is now n+1 years old.

So, in four years, she will be

(n + 1) + 4 years old

meaning that she will be n + 5 years old.

hope this helps!! :)

alexandr1967 [171]2 years ago
3 0

Melly's age is not told so N = 1

N+1 + 4 years = 5 years

Melly would be 5 years old

>Rijja<

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I honestly don't even know where to start //// on his last 4 tests , Danilo scored 55% 78% 84% and 93%. What score should he get
skelet666 [1.2K]

Answer:

The answer to your question is He must get 80%

Step-by-step explanation:

Data

Scores 55%, 78%, 84%, 93% and X

Average 80%

Process

1.- Write a equation to solve this problem

- There are five scores

Score 1 = S1 = 55

Score 2 = S2 =  78

Score 3 = S3 = 84

Score 4 = S4 = 93

Score 5 = S5 = X

Equation

               Average = (S1 + S2 + S3 + S4 + S5) / 5

- Solve for S5

               5 Average = S1 + S2 + S3 + S4 + S5

               S5 = 5 Average - S1 - S2 - S3 - S4

- Substitution

               S5 = 5(80) - 55 - 78 - 84 - 93

- Simplification

               S5 = 400 - 310

- Result

               S5 = 90

5 0
3 years ago
A waiter's weekly salary can be modeled by the equation y = 0.2x + 300, where x is the amount spent by the customers in dollars
butalik [34]

Answer:

A. $100

Step-by-step explanation:

y = 0.2x +300

0.2(500) + 300 = 400

0.2(1000) + 300 = 500

3 0
2 years ago
3pr - 4ps + 12qs - 9qr = ?​
aleksklad [387]
It cannot be simplified more than that. hope this helps!
4 0
3 years ago
Please help! Brainliest to correct.
Margarita [4]

Answer:

We are given the following in the question:

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We have to approximate the number of U.S. travelers to other countries in each given year.

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We put x = 0 in the given function.

Thus, there are 48.09 millions U.S. travelers in 1990.

​(b) 2000

We put x = 10 in the given function.

Thus, there are 56.888 millions U.S. travelers in 2000.

​(c) 2009

We put x = 19 in the given function.

Thus, there are 31.085 millions U.S. travelers in 2009.

Step-by-step explanation:

Hope this helps:) plz mark as brainliest I really need it:)

7 0
2 years ago
Forty percent of N is equal to two hundred forty. how do i write in number?​
Vinil7 [7]
40% of 600 is 240 :)
6 0
2 years ago
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