Two rectangles have an area of 81 square inches. Name one possible perimeter for each rectangle.

Answers

Answer 1

Answer:

60 inches (it would be a rectangle 3 by 27)
36inches (it would be a rectangle 9 by 9)

Answer 2

Answer: parameter is 30
means side are 3 and 27

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An athlete eats 75g of protein per day while training. How much protein will she eat during 23 days of training? Write your answer in kilograms.

Answers

K ⇒ Kilograms
H
D
B ⇒ grams
D
C
M
75 ×23= 1725
distance between Kilo. and grams is 3 jumps
so you jump the decimal 3 jumps to the left
Answer: 1.725 Kilograms of protein

You multiply 75 by 23 to get 1725 and since a kilogram has 1000 grams in it, the athlete eats 1.725 kg of protein.

Samantha and Henry are planting flowers and they decided that for every 5 tulips, they would like to plant 3 daisies. They need to plant 24 flowers to fill the garden. What number do they need to put into this tape diagram to get a total of 24 flowers?

Answers

Answer:

Step-by-step explanation:

i dont get it

Answer:

Samantha and Henry are would need to plant 15 tulips and 9 daises.

or 3 sets.

Mr. Ishimoto ordered x new math books and y new workbooks for his class. The total weight of the box of books cannot be more than 50 pounds. If each math book weighs 3.2 pounds and each workbook weighs 0.8 pounds, which inequality represents the maximum number of each type of book that can be shipped in a single box?

Answers

Answer:

3.2x + 0.8y ≤ 50

Step-by-step explanation:

Mr. Ishimoto ordered math books and workbooks for his class.

Weight of each math book = 3.2 pounds

number of math books ordered = x

so, total weight of math books = 3.2x

Weight of each workbook = 0.8 pounds

number of workbooks ordered = y

so, total weight of workbooks = 0.8y

Since the total weight of the box of books cannot be more than 50 pounds, the equation would be

3.2x + 0.8y ≤ 50

Answer: B

Step-by-step explanation:

Use the quadratic formula to solve the equation. If necessary, round to the nearest hundredth. −2y2 + 6y = −2

Answers

-2y^2 + 6y + 2 = 0
a = -2, b = 6, c = 2
x = (- b + - sqrt(b^2-4ac))/(2a)
x=(-6+-sqrt(36-4*-2*2))/-4
x=(-6+-sqrt(36+16))/-4
x=(-6+-sqrt(52))/-4
x = (-6 +- 2sqrt13)/-4
x = (3 + - sqrt13)/2

Answer:

-0.3 Or 3.3

Step-by-step explanation:

-2y^2 + 6y + 2 = 0

X = -6 + 7.21/-4 or -7 - 7.21/-4

X = -0.3 or X = 3.3

What is the average rate of change from x=-1 to x=-2

Answers

the average rate of change from x=-1 to x=-2 is +3

Which inequality models this situation? The time between two trains must be greater than 37 minutes.

A.
t < 37

B.
37 > t

C.
37 – t = 0

D.
t > 37

Answers

The inequality t > 37 models the equation correctly, in which it is stated that the time between two trains must be more than 37 minutes. Here, t represents the time between the two trains.

Answer:

The answer would be A

Step-by-step explanation:

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