3 years ago

25 degrees decreased by 60%

Mathematics

1 answer:

Firdavs [7]3 years ago

3 0

25-percent decrease =25-(60%×25%)

25-60%×25

(1-60%)×25=(100%-60%)×25

40%×25=40÷100×25

40×25÷100

1000÷100

10ans

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Which are composite or prime 9 , 2 , 15 , 21

Luda [366]

A composite number is a number that has more than 2 factors.
A prime number is a number who only have 2 factors (1, and itself)
Factors:-

9 = 1, 3, 9 = composite
2 = 1, 2 = prime
15 = 1, 3, 5, 15 = composite
21 = 1, 3, 7, 21 = composite

So, the prime #'s in this set are 2. The composite #'s in this set are 9, 15, and 21.

Hope I helped ya!!

5 0

3 years ago

Read 2 more answers

Question 20 points if correct

Vlada [557]

Answer:

B = 155° , C = 25° , D = 155°

Step-by-step explanation:

Given

A = 25°

C = A = 25° [ Vertically Opposite angles ]

Now