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Vaselesa [24]
3 years ago
11

Translate this phrase into an algebraic expression. 45 decreased by twice a number Use the variable n to represent the unknown n

umber.
Mathematics
1 answer:
aivan3 [116]3 years ago
7 0
I think that it is 45-2n
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Ben takes out a personal loan of £1200 with a simple interest rate of 20% for a term of 3 years how much is the total cost of th
lilavasa [31]

Answer:

$1920

Step-by-step explanation:

Original amount: £1200 x Simple interest rate: 0.2 x number of years: 3 = 720

Add Original onto simple interest

£1200 + £720 = £1920

Total Cost of personal loan after 3 years = £1920

5 0
3 years ago
What is an equation of the line containing the points (-1,5) and (3,9)​
Lady bird [3.3K]

Answer:

  y = x+6

Step-by-step explanation:

You can find an equation by using the 2-point form of the equation for a line:

  y = (y2 -y1)/(x2 -x1)·(x -x1) +y1

Filling in the given values, we have ...

  y = (9 -5)/(3 -(-1))·(x -(-1)) +5

  y = (4/4)(x +1) +5 . . . . simplifying a bit

  y = x +6

3 0
3 years ago
If Rachel were to paint her living room alone it would take five hours her sister Barbara could do the job in eight hours how ma
viva [34]

Answer:

40/13 hours

Step-by-step explanation:

Let 1 represent the room being painted.

1/5 would represent 1/5 of a room painted in 1 hour.

1/8 would represent 1/8 of a room being painted in 1 hour

But they are are working together so

(1/5)x + (1/8)x = 1

The lowest common denominator is 5 * 8 = 40

[(1/5)x * 40 + (1/8)x * 40] = 1

8x + 5x = 40

13x = 40

x = 40/13

x = 3.077 hours

But you want a fraction as your answer so it is 3 1/13 or 40/13

You should notice that 3.077 is smaller than the lowest amount of time both of them use. That always happens with these questions.

8 0
4 years ago
PLEASE HELP I'LL MARK BRAINLY!!
Illusion [34]

i think the answer is 35x

-taz;)

Step-by-step explanation:

6 0
4 years ago
Last month you spent $30 on clothing. This month you spent 160% of what you spent last month Set
8_murik_8 [283]

Answer:

89

Step-by-step explanation:

pls write question in good way it's difficult to do so search on www.brainly.com

4 0
3 years ago
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