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victus00 [196]
3 years ago
11

Easier way to learn multiplication

Mathematics
1 answer:
joja [24]3 years ago
6 0
Do this every day
1x1=










2x1










3x1












4x1















5x1








6x1

AND SO ON JUST DO TABLE BY TABLE
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What is 32% of 4 because I don't know if I doing my calculations right?
GuDViN [60]

Answer:

1.28

Step-by-step explanation:

32% of 4

0.32 × 4

1.28

6 0
3 years ago
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A shipment of 40 fancy calculators contains 3 defective units. What is the probability if a college bookstore buys 20 calculator
JulsSmile [24]

Answer:

38.46%

Step-by-step explanation:

There are no names or marking that can make the calculator look different, so the order is not important. Then we should use a combination to solve this problem.

There are 40 calculators in one shipment, 37 of them good items and 3 of them are defect items. We need to choose 19 good calculators and 1 defect calculator. The number of ways to do that will be:

\frac{37}{19}* \frac{3}{1}= 37!\frac{37!}{19!(37-19!)} * \frac{3!}{1!(3-1)!}= 53017895700

The number of possible ways to choose 20 calculators out of 40 calculators will be:

\frac{40}{20}= \frac{40!}{20!(40-20!)}=137846528820

The chance will be: 53017895700/ 137846528820 = 0.3846= 38.46%

4 0
3 years ago
Calculate the value of x
Katena32 [7]

Answer:

22⁰

Step-by-step explanation:

By angle sum property :

x + 127 + 31 = 180⁰

x = 180 - 158

x = 22⁰

3 0
3 years ago
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A film start at 17:15 and finish at 1 hour and 45 minutes later. what time did it finish?​
vova2212 [387]
It ended at 19:00 or at 7 pm
4 0
2 years ago
field biologist collects 220 butterflies and moths. He collects 4 butterflies for every moth. How many butterflies and how many
ki77a [65]

Answer:

The number of butterflies he collects = 176

The number of moth he collects = 44

Step-by-step explanation:

This question has to do with ratio.

We are told in the question that:He collects 4 butterflies for every moth.

Hence, the ratio of

Butterflies : Moth

4 : 1

Sum of the proportion = 4 + 1 = 5

We are also told he has a total of 220 butterflies and moths.

Hence:

The number of butterflies he collects is calculated as

4/5 × 220 = 176 butterflies

The number of moth that he collects =

1/5 × 220 = 44 moth

3 0
3 years ago
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