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3 years ago

Why is there no commutative property for subtraction or division? Show examples.

Mathematics

1 answer:

Andrei [34K]3 years ago

6 0

If you do 17 - 15 the answer will be positive but do the reverse and u get a negitive same for division

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How many solutions does the system have?Explain

valkas [14]

There are NO SOLUTIONS.

Substitute the first equation for y in the second equation. You can see it does not work. 6 does not equal 8. Therefore there are no solutions.

6 0

3 years ago

If g(x)=4x^2-16 were shifted 5 units to the right and 2 down hat would the new equation be

nadezda [96]

Answer:

This is the answer

Step-by-step explanation:

This is the solution, hope it helps

7 0

2 years ago

Rewrite 1/3 book - 5/6 hour as a unit rate.

insens350 [35]

Answer:

2/5

Step-by-step explanation:

The answer is 2/5 as a fraction or 0.40 as a decimal. To get the answer all you have to do is 1/3÷5/6

6 0

2 years ago

Tina and her friend are picking apples at Newberry Orchard. The apples cost $1.40 per pound. If they pick 2.5 pounds of apples,

sp2606 [1]

Answer:

$3.50

Step-by-step explanation:

the apples cost $1.40 per pound, so if we have 2.5 pounds, we would need to do this:

1.40 × 2.5

3.5

I hope this helps!

8 0

3 years ago

Currently, the number of people entering a shopping mall is 109. It is estimated that the number of people entering the shopping

seropon [69]

Answer:

96 people.

Step-by-step explanation:

Exponential equation for a decreasing amount:

The exponential equation for a decreasing amount is given by:

$A(t) = A(0)(1-r)^t$

In which A(0) is the initial rate and r is the decay rate, as a decimal.

Currently, the number of people entering a shopping mall is 109.

This means that $A(0) = 109$

It is estimated that the number of people entering the shopping mall will decrease by 3% each hour.

This means that $r = 0.03$

$A(t) = A(0)(1-r)^t$

$A(t) = 109(1-0.03)^t$

$A(t) = 109(0.97)^t$

Find the total number of people entering the shopping mall at the end of 4 hours.

This is A(4). So

$A(4) = 109(0.97)^4 = 96.49$

Rounding to the nearest whole number, 96 people.

6 0

3 years ago