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Phoenix [80]
3 years ago
6

In an atom, electrons have a negative charge and protons have a positive charge. One negative and

Mathematics
1 answer:
Ostrovityanka [42]3 years ago
6 0

Answer:

The charge is negative and the amount is 215

Step-by-step explanation:

Electrons are negative

-354

Protons are positive

+139

-354+139

-215

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Mehvish buys 1/2 kg carrots, 3 kg potatoes, 2 kg onions and 1 1/2kg of chicken.
ozzi

Answer:

The amount of change will be £7.99

Step-by-step explanation:

Here, we want to calculate the amount of change that Mehvish should get

1/2 kg carrots at 50 p per kg will be;

1/2 * 50 = 25 p

3 kg potatoes at 64 p per kg will be

3 * 64 = p 192

2 kg onions at 42 p per kg

2 * 42 p = 84 p

1 1/2 kg chicken at £6 per kg will be:

since £1 is 100 p

1.5 * 6 = £9 (9 * 100 p = 900p)

since £1 is 100 p

£20 will be;

20 * 100 = 2,000 p

So let us make the subtraction as follows;

2,000- 900 - 84-192 - 25 = 799 p

In pounds, this is divided by 100

we have this as 799/100 = £7.99

7 0
3 years ago
A quality control officer is randomly checking the weights of pumpkin seed bags being filled by an automatic filling machine. Ea
grandymaker [24]
If a bag of pumpkin seeds must weigh within 2.1 grams in order to be accepted, each bags must weigh between (400-2.1) grams and (400+2.1) grams. This means that if a bag weighs less than 397.9 grams (x<397.9) or more than 402.1 grams (x>402.1) it will be rejected. Therefore, 397.9>x>402.1 is the range of rejected bags.
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3 years ago
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Choose a reasonable estimate. The height of your kitchen table: 68 cm ? 68m
Mademuasel [1]

Answer:

68 cm, 68 m is too big.

Step-by-step explanation:

8 0
2 years ago
15 - 5 x = 10 x + 45
Tomtit [17]

Answer:

x=-2

Step-by-step explanation:

add 5x , then subtract 45, then divide by 15

6 0
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What is the solution to this equation 8 - 2x + 6x = 24
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x = 4

First you combine like terms:

8 + 4x = 24

Then solve:

4x = 24 - 8

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x = 16/4

x = 4

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3 years ago
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