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Murrr4er [49]
3 years ago
7

Question12....................................

Mathematics
1 answer:
tatyana61 [14]3 years ago
5 0

Answer:

u = ± 4

Step-by-step explanation:

Given

u² = 16 ( take the square root of both sides )

u = ± \sqrt{16} = ± 4

u = - 4, u = 4

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What is { y= 4x+10 and y= 3x+9
Musya8 [376]

Answer:

x=-1

Step-by-step explanation:

y=4x+10

y=3x+9

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4x+10=3x+9

4x-3x=9-10

x=-1

5 0
3 years ago
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3. A survey conducted among a group of 50 students showed that; (APPLYING)
Pani-rosa [81]

Answer:

Step-by-step explanation:

this is a set problem (mathematical set)

30 students played soccer

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x students played neither cricket nor soccer

3x students played cricket only.

we can see that in the first set 21 appears and in the middle of the set 9 because it says 30 students played soccer adding x and 3x we have the following formula

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3 years ago
six times the sum of a number and 3 is 12 less than 12 times the number .Write and solve an equation to fine the number
Aloiza [94]

6 (x+3)=12x-12

6x+18=12x-12

6x-12x=-18-12

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4 0
3 years ago
What is the Area of this triangle? WILL MARK BRAINLIEST
joja [24]
Answer= 18

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4 0
2 years ago
Danny brought a car for £10000 the value of the car depreciated by 20% in the first year then the value of the car depreciated b
Levart [38]

£7200

In first year depreciates by 20%, that is it is worth 80% of it's original value

80% = \frac{80}{100} = 0.8

value after 1 year = 0.8 × £10000 = £8000

In the second year it depreciates by 10% of it's value, that is it is worth 90% of it's value at the end of the first year.

90% = \frac{90}{100} = 0.9

value after 2 years = 0.9 × £8000 = £7200


6 0
3 years ago
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