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3 years ago

a party of 145people have tea at 22tables at some tables they are 7people and 6of the others how many tables are their 7people

1 answer:

6 0

If all 22 tables had 6 people, there would be 132 people seated. There are 13 more than that, so 13 tables have 7 people.

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Thursday Every row and column must add to 24. Use only 4 through 12. be on

maw [93]

Answer:

12 two times or 4 eight times

7 0

3 years ago

IM IN A TEST NOW WILL AWARD BRAINLIEST!!!!!

Oksanka [162]

The product has decreased by 80 %

Solution:

The product of the original numbers: xy

One number is decreased by 75 %

Let x be the number decreased by 75 %

new number = x - 75 % of x

$new\ number = x - 75 \% \times x\\\\new\ number = x(1-75 \%)\\\\new\ number = x(1-\frac{75}{100}) = x(1-0.75) = 0.25x$

Another number is decreased by 20 %

Let y be the number decreased by 20 %

new number = y - 20 % of y

$new\ number = y - 20 \% y\\\\new\ number = y(1-20 \%)\\\\new\ number = y(1-\frac{20}{100}) = y(1-0.2) = 0.8y$

Now the product is given as:

$product = 0.25x \times 0.8y = 0.2xy$

Now we have to find the percent decreased

Subtract new product and original product and then divide by original product . Multiply the result by 100 to get percentage

$percent\ decrease = \frac{0.2xy - xy}{xy} \times 100\\\\percent\ decrease = \frac{-0.8xy}{xy} \times 100 = -0.8 \times 100 = -80$

Here negative sign denotes decrease

Thus the product has decreased by 80 %

3 0

3 years ago

Can you help me plz

Doss [256]

Answer: y = 6

Explanation:

Find area of 1 square:

180/5 = 36

Find the side length of the square:

Sqrt 36 = 6

4 0

3 years ago

Read 2 more answers

Laura framed her rectangular garden with boards. She used 1 board on each side. The longer sides

Alex73 [517]

Answer: D) 48.75

Step-by-step explanation:

Hi, to answer this question we have to apply the next formula:

Area of a rectangle: length x width

Replacing with the values given and solving for A (area)

A= 7.5 ft x 6.5 ft =48.75 ft2

The area of the garden in square feet is 48.75. (option D).

Feel free to ask for more if needed or if you did not understand something.

8 0

3 years ago

How fast did Amir descend?

yuradex [85]

Answer:

12 meters per minute.

Step-by-step explanation:

5 0

3 years ago