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drek231 [11]
3 years ago
14

Is three a rational number?

Mathematics
2 answers:
Alexeev081 [22]3 years ago
8 0
Yes because a rational number can be whole numbers, integers, and decimals
Ivanshal [37]3 years ago
4 0

Answer:

Yes

Step-by-step explanation:

It is because it can be written in the form of n/1 : 3/1 having the numerator and denominator as integers

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Knife is 3 times cost of spoon<br> 9 spoons and 12 knifes is £82.80<br> what is 1 knife
xenn [34]

Answer:

The cost of spoon is £1.84 and therefore the cost of one knife is £5.52.

Given :

  • A knife is 3 times the cost of the spoon.
  • 9 spoons and 12 knives costs £82.80.

Solution :

  • This question is solve by creating a linear equation and linear equations are nothing but yet another subset of "equations".
  • Linear calculations that requires more than one variable can be done with the help of linear equations.
  • The standard form of a linear equation in one variable is ax + b = 0.

Now let x be the cost of spoon. Than the cost knife is 3x. It is given that 9 spoons and 12 knives costs £82.80.

<h3>9x + 12 x (3x) = 82.809x + 36x = 82.8045x = 82.80x = 1.84</h3>

Therefore the cost of 1 knife = 5.52

Step-by-step explanation:  1.84 x 3 = 5.52

3 0
2 years ago
I need help with this 20 points
iren2701 [21]

Answer:

I dont understand that sorry

4 0
3 years ago
Read 2 more answers
Blueberries contain sugars like glucose. What is the source of carbon for the glucose in blueberries?
Kobotan [32]
<span>B. Carbon dioxide gas in air </span>
4 0
3 years ago
The amount of time needed to complete a certain road trip, t, varies inversely with the speed of a
JulsSmile [24]

Answer:

x = 60

Step-by-step explanation:

t = \frac{k}{x}

15 = k/68

k=1020

~~~~~~~~~~~

17 = 1020/x

x = 1020/17

x = 60

6 0
3 years ago
The angled of a triangle are in the ratio of 2:3:4 find angles in degrees
jeyben [28]

40°, 60° and 80°

sum the parts of the ratio 2 + 3 + 4 = 9

The sum of the angles in a triangle = 180°

Divide 180 by 9 to find one part of the ratio

\frac{180}{9} = 20° ← 1 part of the ratio

2 parts = 2 × 20 = 40°

3 parts = 3 × 20 = 60°

4 parts = 4 × 20 = 80°

The angles in the triangle are 40°, 60° and 80°


6 0
3 years ago
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