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joja [24]
3 years ago
9

1. Complete these factor trees. 30 N--- 2 x O 2 xox

Mathematics
1 answer:
ch4aika [34]3 years ago
6 0

30

2 × 15

3 × 5

2×3×5 = 30

Hope it helps

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A random sample (Sample 1) of the Mercedes's average driving speed (km/h) is: 120, 142, 142, 165, 132, 130, 156, 136, 167, 139,
ziro4ka [17]

The median of Mercedes' speed is 144 km/h.

The median of Audi's speed is ~133,6 km/h.

8 0
3 years ago
1/2 + 1/4 = how many quarters
Aleksandr [31]

Answer:

3

Step-by-step explanation:

1/2 = 0.5

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1/2 + 1/4

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= 0.75

= 75/100

= 3/4

Quarter is 1/4.

3/4 can be written as 3 x 1/4

Hence,

1/2 + 1/4 is 3 times 1/4

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5 0
2 years ago
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Y is inversley proportionaly to x. when y=7, x=9
mrs_skeptik [129]

The equation is y = 63/x

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Step-by-step explanation:

When y varies inversely with x, The inverse proportion is given by:

y ∝1/x

When the proportionality symbol is removed, a constant of proportionality is introduced

y = \frac{k}{x}

Putting y = 7 and x = 9

7 = \frac{k}{9}\\k = 9*7\\k = 63

So,

y = \frac{63}{x}

Putting x =21

y = \frac{63}{21}\\y = 3

Hence,

The equation is y = 63/x

And y = 3 when x=21

Keywords: Proportion, variables

Learn more about proportion at:

  • brainly.com/question/11220787
  • brainly.com/question/11131690

#LearnwithBrainly

8 0
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Nimfa-mama [501]
The value would 223. all that needs to be done is substitute 6 for a and 3 for b.
3 0
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Consider the graphs which summarize the data on the number of hours
kolbaska11 [484]

Answer:

Scatter plot, bar graph

Step-by-step explanation:

5 0
3 years ago
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