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Ivahew [28]
3 years ago
12

Which is a better buy, 4 lunches for $57 or 5 lunches for $71?

Mathematics
1 answer:
worty [1.4K]3 years ago
3 0
Answer: 5 lunches for $71 is better
57/4=14.25
71/5=14.2
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Three balls are selected at random without replacement from an urn containing two white balls and four blue balls. Find the prob
guapka [62]

<u>Answer:</u>

P(3 blue) = 1/5

<u>Steps:</u>

P(3 blue) = 2/3 × 3/5 × 1/2

P(3 blue) = 6/30

P(3 blue) = 1/5

<em>that's 20%</em>

4 0
3 years ago
HELP ME PLEASE HURRY: Wade has claims that quadrilateral ABCD is a square because he has found that all four sides are congruent
RUDIKE [14]

Answer:

At first we should know that:

<u>The properties of the square are:</u>

  1. It has four equal sides.
  2. All angles are right angles or equal to 90º.
  3. The sum of its all angles is 360º
  4. It has two pairs of perpendicular lines.
  5. It has two pairs of parallel lines.

<u>The properties of Rhombus</u>

  1. It has equal four sides.
  2. The opposite sides are of the same length.
  3. It has two acute angles and two obtuse angles.
  4. The sum of its all angles is 360º
  5. It has zero pairs of perpendicular lines.
  6. It has two pairs of parallel lines.

So, Wade is incorrect because the quadrilateral may be <u>Rhombus</u>

And the quadrilateral to be a square, she needs to show that It has two pairs of perpendicular lines.

6 0
3 years ago
The square root of 61 is in between 2 integers what are they
swat32
One way is to estimate
1^2=1
2^2=4
3^2=9
4^2=16
5^2=25
6^2=36
7^2=49
8^2=64
the number 61 is between 49 and 64 therefor the square root of 61is between the intigers 7 and 8 or -7 and -8
8 0
3 years ago
Examples from your surroundings where we use negative rational number​
kotegsom [21]

Answer:

U can see it in your thermometer

Step-by-step explanation:

8 0
3 years ago
A tire is slowly deflating. The graph below shows the pounds per square inch (psi) of pressure as a function of time.
nadezda [96]

Answer:The rate is 4

Step-by-step explanation:

32/8

3 0
3 years ago
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