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pickupchik [31]
3 years ago
7

I WILL GIVE U BRAInLIEST HURRY Up Plzzz

Mathematics
2 answers:
bezimeni [28]3 years ago
6 0

Answer:

The first one third one and last one

Step-by-step explanation:

All except B.

Y_Kistochka [10]3 years ago
3 0

Answer:

(1,-4)

(-9,-12)

(6,0)

Step-by-step explanation:

substitute each other pair into equation

4x-5y=24

(1,-4)

4(1)-5(-4)=24

4+20=24 ... true

(4,8)

4(4)-5(8)=24

16-40=24

-24=24 ... not true

(-9,-12)

4(-9)-5(-12)=24

-36+60=24

24=24... true

(6,0)

4(6)-5(0)=24

24= 24... true

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Divide 85 into the ratio of 2:3:5
alukav5142 [94]
The actual amount that needs to be divided = 85
The ratio in which the amount needs to be divided = 2:3:5
Let us assume the common ratio to be = x
Then
2x + 3x + 5x = 85
10x = 85
x = 85/10
  = 8.5
Then
The ratio in which the number 85 will be divided = 2 * 8.5:3 * 8.5:5 * 8.5
                                                                             = 17:25.5:42.5
So from the above deduction we can see that the number 85 can be divided in the ratio 17:25.5:42.5
4 0
3 years ago
When factored completely, <br> X^3-7x^2-30x
sweet-ann [11.9K]

Answer:

x(x+3)(x−10)

Step-by-step explanation:

Hope this was helpful let me know if it was!

5 0
3 years ago
Which expression is equivalent to 10a + 6?
victus00 [196]
There are a number of expressions that are equivalent to 10a+6.
To find them, you simply have to list the multiples of both 10 and 6.
10- 10 20 30 40 50 60 70 80 90 100
6- 6 12 18 24 30 36 42 48 54 60.
Then, when you multiply the fraction by anything, whether this is 2, 3 or 10, you just have to do this to both parts. 
All of the following expressions are equivalent to 10a+6
20a+12, 30a+18, 40a+24, 50a+30, 60a+36, 70a+42, 80a+48, 90a+54, 100a+60

Or, if you're looking to simplfy, then you have to find a common multiple, which is 2. Therefore, 2 goes outside of the bracket, and you then have to divide 10 by 2 to find out what goes inside the brack. 10a/2= 5a. 6/2=3, therefore, in a bracket, it becomes 2(5a+3)

Hope this helps :) 

8 0
3 years ago
Read 2 more answers
The length of a rectangle is 3 less than twice the width. If the area of the rectangle is 20 square inches, what are the dimensi
atroni [7]

Answer:

length is 5

width is 4

Step-by-step explanation:

8 0
3 years ago
PLZ HELP ME ON THIS THANK YOU SO MUCH!
Vilka [71]

Answer:

$4.55

Step-by-step explanation:

7% of $65 = $4.55

7 0
2 years ago
Read 2 more answers
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