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2 years ago

Use the divisibility rules to determine which of the following numbers 528 is divisible by. (Check all that apply.)

Mathematics

1 answer:

nataly862011 [7]2 years ago

6 0

Answer:

2, 3, 4, 6, 11

Step-by-step explanation:

1. (2) Divisible by 2 if it ends in 0, 2, 4, 6, 8

2. (3) Divisible by 3 if sum of digits are divisible by 3 5+2+8= 15

3. (4) Divisible by 4 if last two digits are divisible by 4

4. (6) Divisible if 2 and 3 work

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Someone help me ( view picture below )

oksano4ka [1.4K]

Answer:

D. 13

Step-by-step explanation:

x = 5

2 x 5 + 3 = 13

5 + 8 = 13

meaning the side length has to be 13, also.

5 0

2 years ago

Which pair is made up of prime numbers 11 & 33 , 42 & 56 , 37 & 67, 57 & 97

Cerrena [4.2K]

Answer:

37 & 67

Step-by-step explanation:

11 & 33

11 - 1, 11

11 is prime

33 - 1, 3, 11, 33

33 is composite number

11 & 33 is incorrect

42 & 56

42 - 1, 2, 3, 6, 7, 14, 21, 42
56 - 1, 2, 4, 7, 8, 14, 28, 56
Both 42 and 56 are composite numbers
42 & 56 is incorrect

37 & 67

37 - 1, 37
67 - 1, 67
Both 37 and 67 are prime numbers
37 & 56 is correct

57 & 97

57 - 1, 3, 19, 57
97 - 1, 97
57 is a composite number, 97 is a prime number
57 & 97 is incorrect

3 0

3 years ago

USE DISTANECE= RATE * TIME

torisob [31]

A]
D=R×t
d=5.8r
d2=5.1(r+7)
0.7r=35.7
r=51 mi/hr
thus the average speed on the outbound trip would be:
51+7=58 mi/hr

b]
let speed of fishing boat=x km/h
speed of cruise ship=(x+12.5) km/h
distance traveled by fishing boat=11.5×x=11.5x km
distance traveled by cruise ship=(x+12.5)×11=(11x+137.5) km
Total distance covered by the ships:
11.5x+11x+137.5=322
22.5x=322-137.5
22.5x=184.5
thus
x=184.5/22.5
x=8.2 km/h
The speed of fishing boat is 8.2 km/hr

4 0

3 years ago

Read 2 more answers

At a construction job for a mall there are 45 painters. Of these painters, 18 of them are painting the interior of the mall. Wha

Jlenok [28]

Answer:

40%

Step-by-step explanation:

18/45 × 100

2/5 × 100

40%

8 0