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3 years ago

12

Greta mastered 40% of the math items on her first try. If she mastered 66 items, how many are there in all?

2 answers:

docker41 [41]3 years ago

8 0

Anwser- 165 i think, good luck xxxx

kumpel [21]3 years ago

3 0

The answer is 165 because you take 66 and multiply it by .40 and you end up with 165. (.40 because percent means of one hundred so you make 40 to .40 )

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ad-work [718]

Answer:

the distance is 5

Step-by-step explanation:

Distance (d) = √(-5 - -8)2 + (2 - -2)2

=√(3)2 + (4)2

=√25

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3 years ago

Y=2x+3 Y=2x-1 how many solutions

Evgesh-ka [11]

Answer:

No Solution.

Step-by-step explanation:

y=2x+3

y=2x-1

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2x+3=2x-1

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8 0

3 years ago

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Place the indicated product in the proper location on the grid. x 2 • x 5

anzhelika [568]

For this case we have the following expression:

$x ^ 2 * x ^ 5$

By properties of the power we have:

$a ^ b * a ^ c = a ^ {(b + c)}$

Where "a" is the base and "b" and "c" are the exponents

That is, the same base is placed and the exponents are added. Applying this property to the given expression we have:

$x ^ 2 * x ^ 5 = x ^ {(2 + 5)} = x ^ 7$

Then, the product of $x ^ 2 * x ^ 5$ is: $x ^ 7$

Answer:

$x ^ 2 * x ^ 5 = x ^ 7$

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3 years ago

A two digit number is chosen at random. Find the probality that the number is a perfect square

Novay_Z [31]

Answer:

5 by 99

Step-by-step explanation:

its 5 by 99

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3 years ago

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4/5r = 10<br><br> What is the value of r?

lukranit [14]

Answer:

12.5

Step-by-step explanation:

4/5r=10

multiply each side with 5

4/5r*5=10*5

4r=50

divide 4 from each side

4r/4=50/4

r= 12.5

8 0

3 years ago