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Sever21 [200]
2 years ago
11

Why are you allowed to move the decimal points before dividing with decimals?

Mathematics
1 answer:
nadya68 [22]2 years ago
7 0
It is because both the dividend and the divisor are multiplied by 10, 100, 1000, or some other power of ten.
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You schedule production of communications chips. After the chips are produced, they go to the QC department, where each chip mus
Irina-Kira [14]
The best batch size is 1053.

Since 5% have failed, this means 95% have passed the test.

95% = 95/100 = 0.95

We can set up an equation to answer this:
0.95x = 1000

Divide both sides by 0.95:
0.95x/0.95 = 1000/0.95
x = 1052.6 ≈ 1053
7 0
3 years ago
Kristin won 44 lollipops playing basketball at her school's game night. Later, she gave two to each of her friends. She only has
Colt1911 [192]
21 friends.



44 - 2x = 2, where x is the number of friends Kristin has.

Subtract 2 on each side.

42 - 2x = 0

Add 2x on each side.

42 = 2x

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42 / 2 = x

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Kristin has 21 friends.



Please consider marking this answer as Brainliest to help me advance.
6 0
2 years ago
You want to buy some rice. A 7-ounce package costs 2.59. A 12- ounce package costs $4.56. An 18-ounce package costs 6.30 which p
Reika [66]

Type 1 rice :

7-ounce package costs = 2.59.

Cost of 1-ounce of Type 1 rice= 2.59/7 = $0.37

Type 2 rice :

12-ounce package costs = $4.56  

Cost of 1-ounce Type 2 rice = 4.56/12 = $0.38

Type 3 rice :

18-ounce package costs  = $ 6.30

Cost of 1-ounce Type 3 rice = 6.30/18 = $0.35.

From the above calculations, we can see that the cost of 1-ounce Type 3 rice is lowest. Therefore, 18-ounce package is Best Buy.

6 0
3 years ago
What is the standard equation of a circle?
nadezda [96]
Hello:
the standard equation of a circle : <span>(x – h)2 + (y – k)2 = r2
ridus : r   center A(h , k )</span>
6 0
3 years ago
Evaluate 4m(3m-2) when m=-3.3
Bad White [126]
F(m)=4m(3m-2)
f(m)=12(m^2)-8m
f(-3.3)=12(-3.3^2)-8(-3.3)
f(-3.3)=12(10.89)-(-26.4)
f(-3.3)=130.68+26.4
f(-3.3)=157.08
3 0
2 years ago
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