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Alex
3 years ago
12

CAN YALL HELP ME WITH THESE 3 QUESTIONS PLZ FOR 20 points

Mathematics
1 answer:
Nookie1986 [14]3 years ago
5 0

Answer:

what are we supposed to do ?

Step-by-step explanation:

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Alex buys 2 1/2 pounds of grapes. He buys 1 1/4 times as many pounds of apples as grapes. How many pounds of apples does he buy?
galina1969 [7]
Given:
grapes = 2 1/2 pounds
apples = 1 1/4 times as many pounds as grapes.

For easier computation, let us convert these fractions into numbers with decimal places.

2 1/2 pounds = 2.50 pounds
1 1/4 times = 1.25

Apples = 2.50 pounds * 1.25 = 3.125 pounds of apples.

Or we still use fractions. We need to convert the mixed fractions into improper fractions.

2 1/2 = 5/2
1 1/4 = 5/4

5/2 * 5/4 = 5*5 / 2*4 = 25/8 is simplified to 3 1/8 pounds
3 0
3 years ago
This is due today pls help
umka2103 [35]

Answer: the answer is linear

Step-by-step explanation: (not sure what functions it’s talkin about but it is linear)

6 0
3 years ago
Simplify 17/20-1/5 explain your answer​
Llana [10]

Answer:

13/20

Step-by-step explanation:

Find a same denominator.

17/20 - 1/5 = 17/20 - 4/20

= 13/20

3 0
3 years ago
maria threw a party for the promotion she received the party cost $20 for two people if she invited 20 guest what would be the c
zhenek [66]

The total cost would  be:

$20 = two people- 2*20=40$

20 = guest

20*20=

400 would be the cost

6 0
4 years ago
The function f(x)=-(x-3)^2 +9 can be used to represent the area of a rectangle with the perimeter of 12 units, as a function of
Ivenika [448]

Maximum area of the rectangle is 9cm^{2}

<u>Explanation:</u>

<u></u>

Considering the dimensions to be in cm

f(x) = -(x-3)^{2} +9\\f(x) = -(x^{2} +9 - 6x)+9\\f(x) = -x^{2} +6x\\f'(x) = -2x+6\\-2x+6 = 0\\2x=6\\x=3cm\\\\

Putting the value of x = 3

Perimeter = 2(x+b)\\12 = 2(3+b)\\6 = 3+b\\b= 3cm

Area of rectangle = x X b\\                              = 3 X 3\\                              = 9cm^{2}

Therefore, maximum area of the rectangle is 9cm^{2}

7 0
3 years ago
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