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Temka [501]
2 years ago
8

Giving brainliest *easy*

Mathematics
2 answers:
AlexFokin [52]2 years ago
7 0
The answer is 3.10 because the 4 is in the hundredths place and if it’s 5 or more it would be 3.20 but in this case it’s lower than 5 so it would be 3.10
Ksenya-84 [330]2 years ago
3 0

um...... i agree with the person above :)

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7) A coin is tossed three times, with 'heads' or 'tails' recorded after each toss. The number of possible outcomes for this expe
makkiz [27]
2^3 = 8 outcomes possible.
5 0
3 years ago
The chemistry class was making 300 gallons of 30% isopropyl alcohol. They mixed 12% with 42%. How much of each did they use?
alexgriva [62]

Answer:

<u>The chemistry class mixed 120 gallons of 12% isopropyl alcohol and 180 gallons of 42% isopropyl alcohol.</u>

Step-by-step explanation:

1. Let's review the information given to us to answer the question correctly:

Amount of isopropyl alcohol made by the chemistry class = 300 of 30%

Amount of 12% isopropyl alcohol mixed by the chemistry class = x

Amount of 42% isopropyl alcohol mixed by the chemistry class = 300 - x

2. How much of each did they use?

Let's write our equation to solve for x, this way:

30% = 0.3, 12% = 0.12, 42% = 0.42

0.12x + 0.42 (300 - x) = 0.3 * 300

0.12x + 126 - 0.42x = 90

-0.3x = 90 - 126

-0.3x = -36

x = -36/-0.3

<u>x = 120 ⇒ 300 - x = 180</u>

<u>Let's prove x = 120 is correct</u>

0.12x + 0.42 (300 - x) = 0.3 * 300

0.12 * 120 + 0.42 (300 - 120) = 0.3 * 300

14.4 + 75.6 = 90

90 = 90

<u>We proved x = 120 is correct</u>

5 0
3 years ago
Justine had 88 dolphin stickers. She gave 4 stickers each to 6 friends. How many stickers does Justine have left?
MatroZZZ [7]

Answer:64

Step-by-step explanation:

4×6=24

88-24=64

3 0
3 years ago
550000000000000000 • 0.00000000044
nasty-shy [4]

Answer:

550000000000000000 0.00000000044

Step-by-step explanation:

000000Oo

5 0
2 years ago
What is the maximum value that a marginal relative frequency can be? Explain.
mart [117]
The maximum value it can be would be 100%.  The only times that it could be this high is when there is only a class on the frequency distribution table.  Another way, is that there is only one column variable on the table (& or if there is only one row.)  Any other time is will be less, but the maximum stays 100%.
3 0
3 years ago
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