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3 years ago

How would you add parenthesis and brackets to make this sentence true: 45/2•4.7-4.4•6=54

1 answer:

3 0

[45/(2 * 4.7) - (4.4)] * 6 = 54

Step 1: PEMDAS (Parenthesis first)
2 × 4.7 = 9.4

Step 2: Still within the parenthesis: 9.4 - 4.4 = 5

Step 3: Finish within the parenthesis: 45 ÷ 5 = 9

Step 4: Last part of the equation: 9 × 6 = 54

Correct placement of brackets and parenthesis to make the statement true is:

[45/(2x4.7)-(4.4)]x6 = 54

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Callie has a new kitten. They can weigh 3 pounds less than half the weight of Callie‘s cat. Together the cat and kitten weigh 18

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Answer:

The weight of cat is 14 pounds and the weight of kitten is 4 pounds.

Step-by-step explanation:

Given:

Callie has a new kitten. It can weigh 3 pounds less than half the weight of Callie‘s cat. Together the cat and kitten weigh 18 pounds.

Now, to find the weight of each animal:

Let the cat's weight be $x.$

And the kitten weight = $\frac{x}{2} -3$

Total weight of cat and kitten = 18 pounds.

Now, to set an equation to get the weight of each animal:

$(x)+(\frac{x}{2}-3)=18$

$x+\frac{x}{2} -3=18$

$\frac{2x+x-6}{2} =18$

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Multiplying both sides by 2 we get:

$3x-6=36$

Adding both sides by 6 we get:

$3x=42$

Dividing both sides by 3 we get:

$x=14\ pounds.$

The weight of cat = 14 pounds.

Substituting the value of $x$ to get the kitten's weight:

$\frac{x}{2} -3\\\\=\frac{14}{2}-3\\\\=7-3\\\\=4.$

The kitten's weight = 4 pounds.

Therefore, the weight of cat is 14 pounds and the weight of kitten is 4 pounds.

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