3 years ago

Explain how to use the combine place value strategy to gind 223-119

Mathematics

1 answer:

EleoNora [17]3 years ago

4 0

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Alan has to finish an exam within 120 minutes. He finished the exam in 80 minutes. What is the percentage of the time he took fo

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Answer:

66.67%

Step-by-step explanation:

80/120 = 66.67

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3 years ago

The length of a rectangle is 3cm greater than its width. the perimeter of the rectangle is 34cm. find its length.

mamaluj [8]

Answer:

10cm

Step-by-step explanation:

The formula for perimeter is:

$P=2(l+w)$

Let the width of the rectangle be x then the length would be...

3+x

Now, let's plug these values into the equation and solve. (Note we are also given perimeter is 34 cm):

$34=2(x+3+x)\\34=2(2x+3)\\Distribute\ the\ 2\ to\ each\ term\ in\ the\ parentheses\\34=2(2x)+2(3)\\34=4x+6\\Subtract\ 6\ from\ both\ sides\\4x=28\\Divide\ both\ sides\ by\ 4\\x=7$

And since the length is x+3 then it is...

x+3=7+3=10cm

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2 years ago

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suter [353]

Answer:

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Step-by-step explanation:

The green dot repesents the max height of the parabola.

Helpful tip:

If the graph opens up then the vertex is a min

If the graph opens down then the vertex is a max

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3 years ago

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anastassius [24]

Answer:

Step-by-step explanation:

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Which choices are equivalent to the expression below? √14 x √10

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Step-by-step explanation:

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