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2 years ago

Nine less than four times a number is the same as nineteen

Mathematics

2 answers:

BaLLatris [955]2 years ago

5 0

Answer:

x= 7, the number is 7

Step-by-step explanation:

4x-9= 19

Add 9 to both sides

4x=28

Divide each side by 4

x=7

Lemur [1.5K]2 years ago

5 0

Answer:

4x - 9 = 19

Step-by-step explanation:

We can represent 4 times any numbers as 4x.

Then they want 9 less than 4x. This means that they want 4x but 9 units shorter. So to make 4x 9 units shorter, you would take away 9 from 4x which is represented as 4x - 9. A common mistake is writing this as 9 - 4x.

They also want 4x - 9 to be the same, or equal to, 19. So to equate both expression, you would add the equals sign between both expressions.

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maxonik [38]

Answer:

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Step-by-step explanation:

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maxonik [38]

We can let x and y represent cups of lemonade and numbers of lemon bars, respectively. Then the constraints are ...

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8 0

2 years ago

Calculate the perimeter and area of this shape.

Bond [772]

area = 25.5 cm²

Step-by-step explanation:

i have shown in the image you have to rotate it to see how i worked the area out

i am very sorry i cant work the perimeter out since i have no idea what the length of the two sides of the triangle are . if you need help on understanding how i worked out the area please let me know .

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Schach [20]

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