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tigry1 [53]
3 years ago
5

2 trifles cost £7 how much do 6 trifles cost

Mathematics
2 answers:
Agata [3.3K]3 years ago
8 0

Answer:

23

Step-by-step explanation:

multiply the cost by 3

damaskus [11]3 years ago
8 0

Answer:

£21

Step-by-step explanation:

Use ratios! Amount of trifle: Amount of money

2:7

*3 *3

6:21

£21

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the 20th term of an arithmetic sequence is 98, and the common difference is 6. Determine the 63nd term.
lina2011 [118]
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8 0
4 years ago
What is the greatest common factor of 10 and 15? Explain your answer
agasfer [191]
The greatest common factor of 10 and 15 is 5 :

first list the factors of 10 and 15

10: 1,2,5,10
15 : 1,3,5,15

the factors they have in common is 1 and 5, 5 is greater than 1 so 5 is the greatest common factor of 10 and 15

hope this helped

8 0
3 years ago
Read 2 more answers
Help neededdd.......
Leya [2.2K]

Answer:

1. -5a

Step-by-step explanation:

The definition of combining like terms is adding their coefficients, for example: 2x + 3x = (2+3)x = 5x.

So for this one, -21a+16a = (-21+16)a = -5a.

3 0
3 years ago
Given the function f(x) = -2c + cx - x^2? and f^-1(5) = -1, find c.
ale4655 [162]

Answer:

c = - 2

Step-by-step explanation:

Given inverse function

f^{-1} (5) = - 1 , then

f(- 1) = 5 , that is

- 2c + c(- 1) - (- 1)² = 5

- 2c - c - 1 = 5

- 3c - 1 = 5 ( add 1 to both sides )

- 3c = 6 ( divide both sides by - 3 )

c = - 2

6 0
3 years ago
the one-to-one functions g and h are defined as followg={(-2, -6), (3, -3), (6, -9), (9, 6)} h(x) = 2x-3
Anna11 [10]

Answer: H (x ) = x ^2 − 3 x + C

its for h(x)=2x-3

Step-by-step explanation:

5 0
3 years ago
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