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brilliants [131]
3 years ago
15

Please I need the answer right now. Find the percent of increase or decrease? 2.5y to 1.5y

Mathematics
1 answer:
Anni [7]3 years ago
8 0

Answer:.5%

Step-by-step explanation:

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One number is 2 more than another. The difference between their squares is 24.
kkurt [141]

Answer: The numbers are 7 and 5

Step-by-step explanation:

Let the first number be x and the second number be y.

From the first statement , it was said that one of the number is two more than the other , that is

x - y = 2  .................. equation 1

square of x is x^{2} and the square of y is y^{2} , the difference between thier squares implies

x^{2} - y^{2} = 24 .............. equation 2

solving the resulting simultaneous equations by substitution method:

From equation 1 , make x the subject of the formula , that is

x = 2 + y ............. equation 3

substitute equation 3 into equation 2 , we have

(2+y)^{2} - y^{2} = 24

Expanding , we have

y^{2} + 4y + 4 - y^{2}  = 24

4y + 4 = 24

Subtract 4 from both sides

4y = 20

y = 20/4

y = 5

substitute y = 5 into equation 3 , we have

x = 5+ 2

x = 7

Therefor the numbers are 7 and 5

7 0
3 years ago
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A bottle holds 2 ounces of pixie dust. How many bottles can we fill with 13 ounces of pixie dust?
andrey2020 [161]
6 and a half bottles of pixi dust
4 0
3 years ago
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The eggs of birds and other animals come in many different shapes and sizes. Eggs often have a shape that is nearly spherical. W
vekshin1

Answer:

696.9 cm^3 to the nearest tenth.

Step-by-step explanation:

Radius of the egg = 1/2 * 11 = 5.5 cm.

Volume = 4/3 * pi * 5.5^3

= 696.9099703

6 0
2 years ago
Please please help:p
AnnZ [28]

Answer:

y = \frac{6}{19}

Step-by-step explanation:

3 0
3 years ago
Write each vector in terms of i andj
yulyashka [42]

Step-by-step explanation:

Distance between two points = √(x2-x1)² + (y2-y1)²

A(4,-2) and B(4,0)

= √(4-4)² + (0+2)²

= √0² + 2²

= √4

= 2j

4 0
2 years ago
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