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Rzqust [24]
3 years ago
14

What is the value of x? x + 3 = - 9 Enter your answer in the box.

Mathematics
2 answers:
kow [346]3 years ago
3 0

Move +3 to the right side of the equal sign (which becomes -3) in order to combine the numbers to find x:

x=-9-3

-9-3 is -12

x=-12

Stels [109]3 years ago
3 0

x + 3 = -9    <em>subtract 3 from both sides</em>

x + 3 - 3 = -9 - 3

<h3>x = -12</h3>
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Answer:

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5 0
3 years ago
Read 2 more answers
Calculate the average time the car took to reach each checkpoint. Record the average time in Table D of your Student Guide. The
zhuklara [117]

The average time the car took to reach each checkpoint are:

  • 2.07
  • 3.16
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<h3>Average time</h3>

Given:

Time  interval

1              2      3           4

2.02    3.17   4.12    4.93

2.05    3.07  3.98   4.81

2.15    3.25  4.23    5.01

Hence:

First quarter checkpoint

Average time= (2.02 + 2.05 + 2.15) / 3

Average time=6.22/3

Average time= 2.07s

Second quarter checkpoint

Average time= (3.17 +3.07 + 3.25) / 3

Average time=9.49/3

Average time = 3.16 s

Third quarter check point

Average time= (4.12 + 3.98 + 4.23) / 3

Average time=12.33/3

Average time= 4.11 s

Fourth quarter check point

Average time = (4.93 + 4.81 + 5.01) / 3

Average time=14.75/3

Average time= 4.917 s

Average time=4.92s (Approximately)

Therefore the average time the car took to reach each checkpoint are: 2.07, 3.16, 4.11, 4.92.

Learn more about average time here:brainly.com/question/19136062

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2 years ago
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8 0
3 years ago
A chord 12cm long subtends an angle of 40° at the centre of the circle. calculate the radius of the circle.
kramer
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5 0
3 years ago
Round 9118 to the nearest ten
gavmur [86]

(8)=ones place

(1)0=tens place

(1)00=hundreds place

(9)000=thousands place

The "1" beside the 8, is the tenths spot so you would round that part of the number.

Therefore the answer would be:

9120

6 0
3 years ago
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