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brilliants [131]
2 years ago
5

Can someone help me with this and explain it to me please? :) CHECK ATTACHED

Mathematics
1 answer:
babymother [125]2 years ago
4 0
23. not equivalent because the first row 3x-9y=5 then if you multiplied this equation by 2 it will be 2(3x-9y) = 2(5) so 6x-18y= 10 not 6x-9y=10


24.equivalent because the second row 2y-6x=8 multiplied by 2 is 2(2y-6x)= 2(8) so 4y-12x=16

25. equivalent because the first row 5x+3y=19 multiplied by 2 is 2(5x+3y) = 2(19) SO 10X+6Y=38 and the second row 2x+4y=20 multiplied by 5 is 5(2x+4y)= 5(20) so 10x+20y=100
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Solve log x = 3. Please help
zhuklara [117]

Answer:

Log x = 3 is the same as Log into base 10 of 3

Recall from Law of Logarithm: if Log a = x , then a = 10^ x

therefore If Log x = 3 , then  x = 10^3 = 1000

Step-by-step explanation:

4 0
3 years ago
Combine like terms and write an equivalent expression with fewer terms: 4 - 2x + 5x
borishaifa [10]

Answer:

4 - 3x

Step-by-step explanation:

negative 2x plus 5x equals 3x

8 0
2 years ago
(Please i need help) The expression p - 0.15p can be used to calculate the final cost of an item that has a price of p and is
garri49 [273]

Answer:

Final cost of the item is $19.55

Step-by-step explanation:

Expression representing the final cost of an item with original price = $p and discount = 15% will be,

Final cost = (p - 0.15p)

If the original price p = $23

By substituting p = 23 in the expression given,

Final cost after discount = 23 - (0.15)23

                                         = 23 - 3.45

                                         = $19.55

Therefore, final cost of the item is $19.55

7 0
3 years ago
Can you plz help me....
WITCHER [35]

Answer:

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7 0
2 years ago
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560

1,310,792

22,001,337


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