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Fittoniya [83]
3 years ago
5

The mean temperature for the first 7 days in January was 6 °C.

Mathematics
1 answer:
serious [3.7K]3 years ago
7 0
That is the answer for the mean

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60 minutes times 40 hours equals 2400 minutes
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Which statement below is TRUE about |-2| and |-5|?
Lesechka [4]

Answer:

|-5| is greater than |-2|

Step-by-step explanation:

the absolute value of -5, is 5, which is greater than the absolute value of -2, which is 2. Have a wonderful rest of your day! I hope this helps!

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Are these ratios equivalent? 38:19 and 2:1 *​
zavuch27 [327]

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Yes

Step-by-step explanation:

2 times 19=38

1 times 19=19

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3 years ago
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The newest phone by Samsung finally came out and costs $499. You were one of the first people in line to buy it so you got a 15%
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Answer:

$460.20

Step-by-step explanation:

499*15% = 74.85 (total discount price)

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3 years ago
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Which relationships have the same constant of proportionality between yyy and xxx as the equation 3y=27x3y=27x3, y, equals, 27,
Tanya [424]

Answer:

A, B and C

Step-by-step explanation:

In the equation: 3y=27x

Making y the subject of the equation, we have:

y=\frac{27}{3}x\\y=9x

The constant of proportionality between y and x  is 9.

We want to determine which relationships have the same constant of proportionality 9.

<u>Option A</u>

y=9x

The constant of proportionality is 9.

<u>Option B</u>

2y=18x

Divide both sides by 2 to obtain: y=9x

The constant of proportionality is 9.

<u>Option C</u>

x=3, y=1/3

Substitution into y=kx gives:

1/3=3k

k=9

The constant of proportionality is 9.

<u>Option D</u>

x=6, y=2/3

Substitution into y=kx gives:

2/3=6k

k=2/3*6=4

The constant of proportionality is 4.

<u>Option E</u>

When x=2, y=18

Substitution into y=kx gives:

18=2k

k=9

However, when x=4, y=27

Substitution into y=kx gives:

27=4k

k=6.75

This is not a proportional relation since the constant of proportionality is not equal.

The correct options are A, B and C

4 0
3 years ago
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