The sum of the real numbers x and y is 15. Their difference is 9. What is the value of xy?

Last year, a lighting supplier called Bright Idea shipped a total of 37,220 lamps to its distributors. This year, the supplier s

fredd [130]

Answer:

25%

Step-by-step explanation:

Given data

Last years shipment= 37220 lamps

These years shipment= 29776 lamps

% Decrease= Initial-Final/Initial*100

% Decrease= 37220-29776/29776*100

% Decrease= 7444/29776*100

% Decrease= 0.25*100

% Decrease= 25%

Hence the decrease is 25%

7 0

3 years ago

Billy bob uses a 10-square model to find 20% of 80. what is 20% of 80? EXPLAIN how Billy Bob can use this model to find 20% of 8

Dvinal [7]

Percentages are numbers that are units of 100

The value of 20% of 80 is 16

<h3>How to determine the percentage value</h3>

The model is not given.

However, the percentage value can still be calculated

The expression is given as:

$20\%\ of\ 80$

Express of as product

$20\%\ * 80$

Express 20 % decimal

$0.20* 80$

Evaluate the product

16

Hence, 20% of 80 is 16

Read more about percentages at:

brainly.com/question/843074

8 0

3 years ago

What is the fractional form of 0.8 repeating

Sonja [21]

When there is only one number repeating, put it over 9
0.8 repeating is 8/9

if there was 2 numbers repeating (.232323), u would put it over 99....23/99
if there was 3 numbers repeating (.234234234), u would put it over 999...234/999

8 0

4 years ago

Jacques wants to fit a scale model of this room on an 8.5” by 11” paper. What scale factor should he use? He wants to make the s

AleksAgata [21]

Answer:

1:20 scale should be perfect

Step-by-step explanation:

8 0

3 years ago

Ming has a standard 52-card deck. A standard 52-card deck has 4 suits (♠, ♣,♦, and ♥) and an equal number of cards of each suit.

soldier1979 [14.2K]

Answer:

Option D.

Step-by-step explanation:

Total number of cards = 52

Total number of cards of each suit (♠, ♣,♦, and ♥) = 13

The probability of getting a card of heart is

$\text{Probability of getting a card of heart}=\frac{\text{Number of heart cards}}{\text{Total number of cards}}$

$\text{Probability of getting a card of heart}=\frac{13}{52}$

$\text{Probability of getting a card of heart}=\frac{1}{4}$

The probability of getting a card other then heart is

$1-\frac{1}{4}=\frac{3}{4}$

If Ming randomly draw a card from the deck 300 times, putting the card back in the deck after each draw, then the number of cards she will draw something other than a heart is

$300\times \frac{3}{4}=225$

Close to 225 times but probably not exactly 225 times.

Therefore, the correct option is D.

3 0

4 years ago