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dexar [7]
3 years ago
13

The number of fish in a lake decreased by 25% between last year and this year,

Mathematics
1 answer:
ololo11 [35]3 years ago
5 0

Answer:

Step-by-step explanation:

80(1-25/100)

80(75/100)

60

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Combined, Teresa and Janey have saved $345 dollars. Teresa has saved twice as much as Janey. How much money do they each have?
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Answer: Janey has $115, and Teresa has $230.

Step-by-step explanation:

Set x be the money that Janey have, then Teresa have 2x.

x + 2x = 345

      3x = 345

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2x= 2(115)= $230

6 0
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Jack borrows 2000 for 2 years at a rate of 2% how much interest will he owe
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7 0
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Show different ways you can make 7502
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6 0
3 years ago
5 of 5
Vsevolod [243]
Let ratio constant k
Pip: 3k
Angad: k
Nick: k
Pip gets 36 more than Nick
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7 0
3 years ago
Which correctly describes a cross section of the cube below? Check all that apply.
vodomira [7]

Answer:

B,E and F

Step-by-step explanation:

  • (B)A cross section parallel to the base is a square measuring 4 cm by 4 cm.

Since a cube has <u>equal base length</u>, any cross section parallel to the base will also have an equal base length.

  • (E)A cross section perpendicular to the base through the midpoints of opposite sides is a square measuring 4 cm by 4 cm.

Since a cube has <u>equal side lengths</u>, any cross section parallel to the side will also have an equal base length.

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Using Pythagoras Theorem

4^2+4^2=4\sqrt{2}>4

There the cross section will be a rectangle which measures 4\sqrt{2}\:cm\:by\:4\:cm

5 0
3 years ago
Read 2 more answers
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