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Nonamiya [84]
2 years ago
12

Your friend says that the absolute value equation | 3x+8 |-9=-5 has no solution because the constant

Mathematics
1 answer:
sineoko [7]2 years ago
3 0

Answer:

Incorrect

Step-by-step explanation:

We are given the equation:

\displaystyle \large{|3x+8|-9=-5}

Add both sides by 9.

\displaystyle \large{|3x+8|-9 + 9=-5 + 9} \\ \displaystyle \large{|3x+8|=4}

When we want to tell if the absolute equation has solutions or not, we have to simplify in this form first: or isolate the absolute sign.

\displaystyle \large{ |ax + b|  = c}

If c ≥ 0, the equation has solutions.

If c < 0, the equation does not have solutions.

Therefore, it does not always matter if the constant on right side is in negative because if there is a number on the left side then there is a chance that the equation has solutions.

From |3x+8| = 4 is equivalent |3x+8|-9=-5 and the right side is 4 which is positive.

Hence, the equation does have a solution!

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Answer:

54, 36

Step-by-step explanation:

67+59+x=60*3

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x=54

54 cones on Sunday

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x=36

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6 0
3 years ago
A shopkeeper fixed the marked price of his radio to make a profit of 30 %. Allowing 15 % discount on the marked price, the radio
topjm [15]

Answer:

10.5 %

Step-by-step explanation:

Here .

let the Cost Price be 'x'

the..

by the question..

the marked price was fixed to make 30% profit

then..

the marked price will be

x+ 30% of x

= x + 30/100 × x

=x+ 0.3x

=1.3x

soo .. the marked price is 1.3x

now.. after allowing 15% discount..

the selling price will be

1.3x - 15% of 1.3x

= 1.3x - 0.195x

= 1.105x

thank you...

plzz mark me brainliest now

now..

profit made = 1.105x-x

= 0.105x

soo .

in percentage..

profit percent = profit/cp × 100%

= 0.105x/x × 100%

= 10.5 %

3 0
2 years ago
Customers can pick their own blueberries at blueberry hill. They pay $5 to enter the patch and $4 per round for the blueberries
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5 0
3 years ago
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The difference between two numbers is 8 .if 2 is added to the bigger number the result will be three times the small number. Fin
Verdich [7]
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3 years ago
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Hunter-Best [27]

Answer:

Yes, it is true that 1.555 <em>is </em>a rational number.

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