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3 years ago

P = x y . Find P when: x = 8 and y = − 11

Mathematics

2 answers:

fiasKO [112]3 years ago

7 0

P= -8 which is the correct answer

Yakvenalex [24]3 years ago

3 0

Answer:

P= -88

Step-by-step explanation:

Since P=xy (Or x times y)

We can solve it since we know that x and y is: 8 and -11

So 8 times -11

Which is -88

Thus P= -88

Hope this helps!

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Savannah earns $247.00. How many hours did she work?

vivado [14]

Answer:

1. 8.25

2. Savannah

Earnings of Savannah: $190

Earnings of Greg: $180

Earnings of Kevin: $165

4. 26 Hours

5. 55.55 hours (or 56 hours)

Step-by-step explanation:

Full Question Shown in the Image Attached.

Constant of Proportionality is the constant value (k) of two proportional quantities.

Here, it is hours vs. wage.

It is usually y divided by x.

In this problem, hours worked is "x" and wage is "y". We can take the first row of Kevin's wages from table and find the constant of proportionality.

$\frac{Wage}{Hour}=\frac{16.5}{2}=8.25$

Thus, the constant of proportionality is 8.25

We can find the highest hourly wage by first finding the unit rate, or the hourly wage for each person. Then we will compare between the 3 person.

For Savannah:

We divide the total wage (Earned Column) divided by Hours.

$\frac{19}{2}=9.5$

Hourly wage is 9.5

For Greg:

We do the similar division shown below:

$\frac{27}{3}=9$

Hourly wage is 9

For Kevin:

Again, doing the same process, we get:

$\frac{16.5}{2}=8.25$

Hourly wage is 8.25

By comparing the hourly wages of 3 people, we see that the highest hourly wage is that of Savannah's.

We know hourly wage for each person. To know how much each one makes if they work 20 hours, we have to multiply 20 with their respective hourly wages.

Earnings of Savannah: 20 * 9.5= $190

Earnings of Greg: 20 * 9 = $180

Earnings of Kevin: 20 * 8.25 = $165

Since she earn's $247 and her hourly wage is 9.5, we can find the hours she worked by dividing her earnings (247) by the hourly wage (9.5). Hence,

$\frac{247}{9.5}=26$

Thus, Savannah worked 26 hours

For Greg to earn 500 dollars, we need to divide his earnings (500) by his hourly wage, which is $9 per hour. Thus we have:

$\frac{500}{9}=55.55$

So, Greg needs to work 55.55 hours to earn $500. If fractional hours are not possible, then Greg needs to work 56 hours.

7 0

3 years ago

Can someone help me with this problem? thank you!

Ostrovityanka [42]

$\qquad\qquad\huge\underline{{\sf Answer}}$

Let's solve ~

$\qquad \sf \dashrightarrow \: c = \pi d$

where, d = 2r = 2 × 5 = 10 cm

$\qquad \sf \dashrightarrow \: c = 3.14 \times 10$

$\qquad \sf \dashrightarrow \: c = 31.4 \: cm$

4 0

2 years ago

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The area of the picture is 100 square inches. The length is 4 times the width. Find the length and width of the picture.

Schach [20]

Answer:

The length is 20 inches and the width is 5 inches!

Step-by-step explanation:

3 0

3 years ago

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The question is.......

Hunter-Best [27]

multiply the 2 numbers together than divide by 2

7 1/2 = 15/2

12 2/3 = 38/3

15/2 * 38/3 = 570/6 =95

95/2=47.5 square feet

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4 years ago

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Enter the length ,X of the ramp in inches (no links need answers ASAP)

topjm [15]

Answer:

53 inches

Step-by-step explanation:

use the Pythagorean Theorem

c^2 = a^2 + b^2

x^2 = 28^2 + 45^2

x^2 = 784 + 2025

x^2 = 2809

Take the square root of both sides

x = 53

8 0

3 years ago