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3 years ago

What is 91 divided by 0.7

2 answers:

8 0

The answer is 170.( if you need to know how I got it then just post another question im on here a lot so ill probably see it)

Tomtit [17]3 years ago

4 0

Well i got 130.

hope it helps : )

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70 p x 2 1/2 = how many pounds

Setler79 [48]

70 x 2 = 140, so 1 pound 40p. Adding 35p (half of 70p) equals 175p. This is £1.75p.

4 0

3 years ago

Given the explicit expression f (n) = 5n - 2, write a set showing the sequence, and write a recursive expression.

denpristay [2]

Answer:

$f(n) = 5 + f(n - 1)$

Step-by-step explanation:

Given

$f(n) = 5n - 2$

Required

Write a recursive expression

$f(n) = 5n - 2$

When n = 1

$f(1) = 5 * 1 - 2 = 5 - 2 = 3$

$f(1) = 3$

When n = 2

$f(2) = 5 * 2 - 2 = 10 - 2 = 8$

$f(2) = 8$ can be rewritten as

$f(2) = 5 + 3$

Substitute 3 for f(1)

$f(2) = 5 + f(1)$

Express 1 as 2 - 1

$f(2) = 5 + f(2-1)$ ----- (1)

When n = 3

$f(3) = 5 * 3 - 2 = 15 - 2 = 13$

$f(3) = 13$ can be rewritten as

$f(3) = 5 + 8$

Substitute 8 for f(2)

$f(3) = 5 + f(2)$

Express 2 as 3 - 1

$f(3) = 5 + f(3 - 1)$ ------ (2)

Write out (1) and (2)

$f(2) = 5 + f(2-1)$

$f(3) = 5 + f(3 - 1)$

Replace 2 and 3 with n in both cases; This gives

$f(n) = 5 + f(n - 1)$

Hence;

The recursive is $f(n) = 5 + f(n - 1)$

7 0

3 years ago

Solve the following inequaltity. (x-8)^2(x+7)>0 What is the solution?

GREYUIT [131]

$(x-8)^2(x+7)>0 \\x\in(-7,8)$

8 0

3 years ago

BRAINLIEST ASAP!!!!!!!!!!!!!!!!!!!!!!!!! (please check my answer)

tatiyna

F(x) = 3x - 16x - x + 4
f(x) = - 14x + 4

I can not see your picture

6 0

3 years ago

Please help me with this question

Vladimir [108]

Answer: 20

Step-by-step explanation:

numbers belonging to the figure on the left are 2.5 times less than on the right so to find x multiply 8 by 2.5 and that is 20

7 0

2 years ago