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denis23 [38]
2 years ago
11

A family spent $86 per week for food. This was 20 percent of its weekly outcome. What was its weekly outcome?

Mathematics
2 answers:
dsp732 years ago
5 0
20% of what is 86
0.20x = 86
x = 86/0.20
x = 430 <== weekly outcome
kkurt [141]2 years ago
4 0
$430 is the weekly outcome.
hope that helps
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During a basketball game, Bari scored 28 points. During the same game, Denay scored
Elza [17]

Answer:

28 points

Step-by-step explanation:

If they scored the same amount then Denay would have scored 28 as well

Hope that helps

6 0
3 years ago
Choose whether it's always, sometimes, never 
Keith_Richards [23]

Answer: An integer added to an integer is an integer, this statement is always true. A polynomial subtracted from a polynomial is a polynomial, this statement is always true. A polynomial divided by a polynomial is a polynomial, this statement is sometimes true. A polynomial multiplied by a polynomial is a polynomial, this statement is always true.

Explanation:

1)

The closure property of integer states that the addition, subtraction and multiplication is integers is always an integer.

If a\in Z\text{ and }b\in Z, then a+b\in Z.

Therefore, an integer added to an integer is an integer, this statement is always true.

2)

A polynomial is in the form of,

p(x)=a_nx^n+a_{n-1}x^{x-1}+...+a_1x+a_0

Where a_n,a_{n-1},...,a_1,a_0 are constant coefficient.

When we subtract the two polynomial then the resultant is also a polynomial form.

Therefore, a polynomial subtracted from a polynomial is a polynomial, this statement is always true.

3)

If a polynomial divided by a polynomial  then it may or may not be a polynomial.

If the degree of numerator polynomial is higher than the degree of denominator polynomial then it may be a polynomial.

For example:

f(x)=x^2-2x+5x-10 \text{ and } g(x)=x-2

Then \frac{f(x)}{g(x)}=x^2+5, which a polynomial.

If the degree of numerator polynomial is less than the degree of denominator polynomial then it is a rational function.

For example:

f(x)=x^2-2x+5x-10 \text{ and } g(x)=x-2

Then \frac{g(x)}{f(x)}=\frac{1}{x^2+5}, which a not a polynomial.

Therefore, a polynomial divided by a polynomial is a polynomial, this statement is sometimes true.

4)

As we know a polynomial is in the form of,

p(x)=a_nx^n+a_{n-1}x^{x-1}+...+a_1x+a_0

Where a_n,a_{n-1},...,a_1,a_0 are constant coefficient.

When we multiply the two polynomial, the degree of the resultand function is addition of degree of both polyminals and the resultant is also a polynomial form.

Therefore, a polynomial subtracted from a polynomial is a polynomial, this statement is always true.

3 0
3 years ago
Read 2 more answers
Ray LC is an angle bisector of ∠JLY, m∠JLC = (6x + 1)°, and m∠JLY = (10x + 16)°.
Sloan [31]
4x + 15 = 6x - 1
x = 8
m∠JLC = 47°
3 0
3 years ago
F(x)= x/x-7<br> What is the domain of f?
Dmitry [639]

Answer:

(-∞,7) U (7,∞)

Step-by-step explanation:

All real values of x such x ≠ 7

7 0
3 years ago
A model ship is built to a scale of 1 cm : 5m. The length of the model is 25 cm. What is the length of the actual ship?
Anestetic [448]

Answer:

<em>The length of the actual ship is 125 meters.</em>

Step-by-step explanation:

<u>Scaling</u>

Objects can be represented in a reduced or augmented size by using scaling which is basically multiplying or dividing by a constant factor. We use scaling for example, when representing geographic locations on a map.

A model ship is built to a scale of 1 cm: 5 m. This means that each centimeter of the model represents an actual length of 5 m.

The length of the model is 25 cm, thus the real ship has a length of 25*5 = 125 m.

The length of the actual ship is 125 meters.

7 0
2 years ago
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