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Vanyuwa [196]
3 years ago
9

Julia buys 12 books. She gives 9 books away.how many books does she have left?

Mathematics
2 answers:
7nadin3 [17]3 years ago
8 0
She would have 3 left
earnstyle [38]3 years ago
4 0
This is modeled by a subtraction problem: 12 - 9

The answer is 3
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Show how many groups of 0.5 are in 3.
worty [1.4K]

Answer:

The answer is 6 groups.

Step-by-step explanation:

0.5 is equal to one half.

What number is 3 half of?

3 is half of 6.

So the answer is 6.

Hope I helped ya.

<u><em>< Sarah ></em></u>

7 0
3 years ago
Read 2 more answers
PLEASE HELP Brenda and darry each improved their yards by planting rosebushes and geraniums they bought their supplies from the
emmasim [6.3K]
One bush costs $10 and One geranium costs $8. I believe this is the correct answer.
8 0
2 years ago
The tempature is -3 degress.The temperature is expected to decrease 2.5 degress each hour until the temperature reaches -18 degr
Andrews [41]

We can set this problem up as an algebraic equation, which we can then solve to find our answer.


We start at -3. So we can start our equation with that:

-3


However, this doesn't represent any change in temperature, just that we start at -3. To show change, we will use the variable x, where x stands for the number of hours. Each hour accounts for a change of -2.5 in degrees, meaning that we must multiply our x by -2.5. We can now add this term into our equation:

-3 - 2.5x


We are trying to find when we will reach -18 degrees, so we will set our entire equation equal to -18 and solve:

-3 - 2.5x = -18

-2.5x = -15

x = 6


It will take us 6 hours, or choice A.

6 0
2 years ago
Elizabeth bought a cheese pizza. It was served on a metal tray with a diameter of 22 centimeters. What is the tray's area?
agasfer [191]
<h3>Answer:</h3>

The Area of the tray ≈380 cm

<h3>Solution:</h3>
  • We are given the diameter of the tray, which is equivalent to 22 cm.
  • We are asked to find the area of the tray.
  • Remember the formula:
  • Area of a circle = πr²
  • Where
  • π -> pi (3.14...)
  • r -> radius
  • Notice that we aren't given the radius. We're given the diameter only.
  • No reason to panic. We can easily find the radius by dividing the diameter by 2.
  • The radius is equal to 11 cm.
  • Now, plug the values into the formula:
  • A=π(11)²
  • A=121π
  • A≈380 cm

Hope it helps.

Do comment if you have any query.

4 0
2 years ago
If ey/n + k = t, what is y in terms of e, n, k, and t?
son4ous [18]
So your goal is to set it equal to Y, so you have to start by subtracting k and you get t-k, then you have to get rid of the fraction by multiplying both sides by the denominator (n), so then you get n(t-k) and the only thing left is to divide by the e, and you get 4
3 0
3 years ago
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