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ANTONII [103]
3 years ago
7

Please help. Here's the question

Mathematics
1 answer:
kakasveta [241]3 years ago
6 0
He goes 1.5k/h. To get that you divide the km by the hour. Then multiply the hour by 1.5 to get the km. (Ex. 2hrs x 1.5km = 3km)
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3x - 5 = -3 is the answer positive or negative
Alika [10]

Answer:

positive

Step-by-step explanation:

if you time the three by a postive then times that by a negetive you get a negitive if you time by two negitives you get postive

7 0
3 years ago
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The mean of 7 numbers is 15. When an 8th number is added the mean decreases to 12. What is the 8th number?
ale4655 [162]

Answer:

The 8th number is -9

Step-by-step explanation:

With an average, the sum of the seven numbers divided by 7 is 15.

In order to add an 8th number, we set up

\frac{7*15+x}{8}=12\\105 + x = 96\\x = -9\\\\\frac{105-9}{8}=\frac{96}{8}=12

3 0
4 years ago
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DIA [1.3K]
Let’s say the variable is x.

0.74x the inverse of this is x/0.74
6 0
4 years ago
Lowest common multiple of 24 and 30
irakobra [83]
24|2
12|2
6|2
3|3
1

30|2
15|3
5|5
1

LCM(24,30)=2^3\cdot3\cdot5=120


8 0
3 years ago
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