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Margaret [11]
3 years ago
6

What is 4 / 3/7? Is it 28/3? Or 4/21?

Mathematics
2 answers:
Mila [183]3 years ago
7 0
THE ANSWER IS 28/7
HOPE IT HELPS

attashe74 [19]3 years ago
6 0
\frac{4}{ \frac{3}{7} }
= 4 ÷ \frac{3}{7 }
= 4 × \frac{7}{3 }
= \frac{28}{3 }

Hope this helped! Ask me if there's any part of the working you don't understand :)
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Steve invested money in the stock market. In the first year, his stock increased 50%. He paid his stockbroker $350 and then lost
telo118 [61]

Answer:

Original amount invested = $3400 .

Step-by-step explanation:

Let the original investment of Steve = $x

Stock increased in the first year = 50% of amount invested

Therefore total amount after one year = x + 0.5x = 1.5x

Commission paid to the stock broker = $350

Amount lost by him = $400

Amount withdrawn by him = $300

Total amount decreased from the amount after 1 year

= 1.5x - (350 + 400 + 300)

= 1.5x - 1050

This remaining amount is doubled, so the final amount

= 2(1.5x - 1050)

= 3x - 2100

This final amount is equal to $8100

3x - 2100 = 8100

3x = 8100 + 2100

3x = 10200

x = $3400

Therefore original amount invested in the stock market was $3400 .

8 0
3 years ago
UPS charges $7 for the first pound, and $0.20 for each additional pound. FedEx charges $5 for the first pound and $0.30 for each
grigory [225]

Answer:

1. 20 pounds

2. $11

Step-by-step explanation:

To set this up, you have to use a system of equations. It would look like this, where p is pounds and t is total cost:

UPS: t=7+0.20p

FedEx: t=5+0.30p

In order to solve a system of equations you must either a.) graph it, or b.) set them equal to each other.

If you graph it, the answer is where the two lines intersect.

If you set them equal to each other, solve it.

I will set them equal to each other in this:

7+0.20p=5+0.30p

The first step in a problem like this, where there's the same variable on both sides, is to subtract the smaller variable from both sides. In this case, it is  0.20x. That would turn the equation into:

7=5+0.10p

After that, you must solve it like a regular two-step equation.

Start by subtracting 5 from both sides:

2=0.10p

Now, you must divide both sides by 0.10.

\frac{2}{0.10}=\frac{0.10p}{0.10}

That would give us:

20=p

This means that in order for the prices to be the same, the package must be 20 pounds.

Now in order to find the total cost, you must plug 20 into one of the equations. It doesn't matter which, since they both equal the same. I will plug it into the FedEx equation:

t=5+0.30(20)

Now you can just use a calculator and solve that or do it by hand. Multiply 0.30 by 20, to get 6, then add 5, which equals 11.

You should get: t=11.

This means that the total cost, when the costs are the same for both FedEx and UPS, is $11.

3 0
3 years ago
Please help me. After charging for 1/3 of an hour, a phone is at 2/5 of its full power. How long will it take the phone to charg
yanalaym [24]

Answer:

D

Step-by-step explanation:

5 0
3 years ago
Examine number patters below 13,23,33,43,53
Bumek [7]

Answer:

The pattern is + 10.

Step-by-step explanation:

13 + 10 = 23

23 + 10 = 33

33 + 10 = 43

...and so on.

I hope this helped! :-)

7 0
3 years ago
Read 2 more answers
What is 3a squared add 7 a
vfiekz [6]
The answer is:  " 9a² + 7a " .
_________________________________
Note:    (3a)² + 7a = (3a)*(3a) + 7a = 9a² + 7a .
_________________________________
3 0
3 years ago
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