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4 years ago

Can someone explain I’m confused on how to do this my teacher can’t teach me this has no time

Mathematics

2 answers:

kaheart [24]4 years ago

8 0

Answer:

The factors of 9 are: 1, 3, 9

The factors of 15 are: 1, 3, 5, 15

Then the greatest common factor is 3.

The factors of 16 are: 1, 2, 4, 8, 16

The factors of 28 are: 1, 2, 4, 7, 14, 28

Then the greatest common factor is 4.

The factors of 50 are: 1, 2, 5, 10, 25, 50

The factors of 75 are: 1, 3, 5, 15, 25, 75

Then the greatest common factor is 25.

Liono4ka [1.6K]4 years ago

6 0

Answer:

A is 3 B is 4 n C is 25

Step-by-step explanation:

bra it ez r u a 6th grader

You might be interested in

1. 1/8 + 5/6 =?

Ivan

1)Find the lcd for 1/8+5/6
=2/24+5*4/24
since the denominators are equal, combine the fractions
=3+4*5/24
=23/24

2)Convert the mixed numbers to improper
=15/8*17/5
=255/40
=51/8
=6 3/8

3)1/9 divided by 3
1/3*9
=1/27

4) 2 3/5* 2 6/35
13/5*76/35
13*76/175
988/175
=5 113/175

4 0

4 years ago

Solve 4 by 216 raise to minus 2 by 3 + 1 by 256 raise to 3 by 4 + 2 by 243 raise to 1 by 5

olchik [2.2K]

Answer:

214....

Step-by-step explanation:

If the question is : solve 4 by 216 raise to minus 2 by 3 + 1 by 256 raise to minus 3 by 4 + 2 by 243 raise to minus 1 by 5

The given expression can be written as:

4/(216)-2/3+1/(256)-3/4+2/(243)-1/5

This expression has three terms.

Notice that the exponents are negative:

We will change the division into multiplication so that the exponents will become positive;

4*(216)^2/3+ 1*(256)^3/4+ 2*(243)^1/5

If we multiply 6 three times it will give us 6^3=6*6*6=216

If we multiply 4 four times it will give us 4^4=4*4*4*4=256

If we multiply 3 five times it will give us 3^5=3*3*3*3*3=243

So we will write it as:

=4*(6^3)^2/3+ 1(4^4)3/4 +2(3^5)^1/5

=4(6)^2+(4)^3+2(3)

=4*36+64+6

=144+64+6

=214

The answer is 214....

7 0

3 years ago

You have to multiply 7 by 19. Which equation uses the Distributive Property to take this problem apart?

grigory [225]

Answer: Choice A

7(10+9) = 70 + 63

============================

Explanation:

when we multiply 7 by 19, we start off multiplying just 7*9 = 63 so just focus on the units or ones digit of 19 to have it multiply with 7. We have 63 as the result so we write down "3" as part of the answer, and carry the 6.

Then you move onto the tens digit. The tens digit of 19 is 1. Multiply 1 by 7 and we get 7, which adds on to the carry digit 6 to get 7+6 = 13. Therefore we'll stick a 13 in front of the 3 we got earlier to end up with the final answer 133

---------------

Using the distribution rule is much easier in my opinion

19 = 10+9

7*19 = 7*(10+9)

7*19 = 70+63

7*19 = 133

The idea is to multiply the outer 7 by each term inside the parenthesis

7*(10+9) = 7*10 + 7*9 = 70 + 63

So we multiplied the 7 by the 10 first to get 7*10 = 70

Then did the same for the 9 term as well 7*9 = 63

After those two multiplications, we add the results up: 70+63 = 133

4 0

4 years ago

Read 2 more answers

1. A number subtracted from 8 is the same as the sum of 3 times a number and 4. What is

vodomira [7]

Answer:

Number = -1

Step-by-step explanation:

8 - x = 3(x + 4)

8 - x = 3x + 12 ( /+x / -12 on both sides)

8 - 12 - x + x = 3x + x + 12 - 12

-4 = 4x (/ divide by 4)

-4/4 = 4x/4

-1 = x

5 0

3 years ago

Please someone help me!!!!!!

ella [17]

Answer:

see explanation

Step-by-step explanation:

Using the identity

cos2Θ = 1 - 2sin²Θ, then

1 - 2sin²( $\frac{\pi }{4}$ - $\frac{0}{2}$ )

= cos [2( $\frac{\pi }{4}$ - $\frac{0}{2}$ )]

= sos( $\frac{\pi }{2}$ - Θ )

= cos $\frac{\pi }{2}$ cosΘ + sin

= 0 × cosΘ + 1 × sinΘ

= 0 + sinΘ

= sinΘ = right side

3 0

3 years ago

Read 2 more answers