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Marina CMI [18]
3 years ago
8

Explain how place value could be used to find the difference of 4.23 and 2.75

Mathematics
1 answer:
seropon [69]3 years ago
6 0
You can use place value to align the numbers together so you can subtract correctly. Match the ones, tenths, and hundredths digits together to subtract.

4.23
2.75

then you can subtract correctly without any mistakes in place value
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I'm not sure if this is right or not could someone also explain why ?
nikitadnepr [17]
The mapping rule for 90 degrees counterclockwise would be (-y,x). So if you had (x,y) it would transfer to (-y,x). Yours is wrong it should be (4,-3). Remember
-(-4) is 4 and -3 stays as -3.

Basically, memorize these mapping rules.

Hope this helped!
6 0
3 years ago
Your mom suggested ten different choices for you to eat for lunch over the next week at school. How many different ways can you
Serggg [28]

Answer:

B. 252

Step-by-step explanation:

To find the answer, you have to use the formula to calculate the number of combinations as in this case, the order in which the objects are selected doesn't matter:

nCr=n!/r!(n-r)!

n= number of sample points: 10

r= number of sample points in each combination: 5

10C5= 10!/5!(10-5)!

10C5= 10!/5!*5!

10C5= 252

According to this, the answer is that you have 252 different ways to choose your school lunch.

5 0
3 years ago
2 pts
DerKrebs [107]

Answer:

It's number one.

Step-by-step explanation:

This is because all the other answers are opinions, like the most attractive color one. Everyone has a different favorite color. But number one is something that can be proved. That's what you're looking for in the scientific method.

4 0
3 years ago
What day of the week will March 5th 3555 be?
Novay_Z [31]
It will be a saturday
4 0
3 years ago
There are only red, blue and green counters in a bag
I am Lyosha [343]

Answer:

I Literally just completed that myself.

red= 6/18

Not blue= 14/18

Step-by-step explanation:

5 0
3 years ago
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