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vagabundo [1.1K]
2 years ago
9

The number of endangered species in a jungle decreased from 75 to 30 in one year.

Mathematics
1 answer:
lys-0071 [83]2 years ago
7 0
The percent of decrease would be 60%
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Jessica earns $800 each month working a part-time job. She wants to save a total of $2,400 for college over a one-year period. W
Stolb23 [73]

Answer:

25% should go

Step-by-step explanation:

If she wants to save $2,400;

Then in a month, she should save 2400/12 = 200

So now we need the amount of her monthly earnings will this savings be

That will be;

200/800 * 100%

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8 0
2 years ago
Let a, n, b, r, and k be integers. If a = nb+r and k|a and k|b, then k|r
Kryger [21]

Answer:

Proof for k|r

Step-by-step explanation:

We are given that a, n, b, r and k are integers.

Also,

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Now, we have to prove that k divides r as well that is k|r

Putting value of a and b in the equation, we get:

rk = n(sk) + r\\r = rk - nsk\\r = (r-sn)k

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5 0
2 years ago
Factor completley x2-4x-12
Artist 52 [7]

Step-by-step explanation:

The answer is 4x

6 0
3 years ago
Find the value of X and y .If order pair (X,y)=(6,7)​
Darina [25.2K]

Answer:

x=6,y=7

Step-by-step explanation:

In a coordinate pair it is assumed that the first number is x, and the 2nd is y.

7 0
3 years ago
Please help me with this question
Lorico [155]
This is what I got I hope it helps

8 0
3 years ago
Read 2 more answers
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