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ella [17]
3 years ago
13

In a survey, 35 out of 75 students buy a school lunch on Fridays. There are 600 students in the school. How many students can th

e cafeteria manager predict will buy lunch at school each Friday?
Mathematics
1 answer:
larisa [96]3 years ago
6 0
He can predict that 280 student will buy lunch each Friday.
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DEFINE ALL OF THESE, ONE SENTENCE EACH, PLEASE
coldgirl [10]

<u>Answers:</u>

These are the three major and pure mathematical problems that are unsolved when it comes to large numbers.

The Kissing Number Problem: It is a sphere packing problem that includes spheres. Group spheres are packed in space or region has kissing numbers. The kissing numbers are the number of spheres touched by a sphere.  

The Unknotting Problem: It the algorithmic recognition of the unknot that can be achieved from a knot. It defined the algorithm that can be used between the unknot and knot representation of a closely looped rope.

The Large Cardinal Project: it says that infinite sets come in different sizes and they are represented with Hebrew letter aleph. Also, these sets are named based on their sizes. Naming starts from small-0 and further, prefixed aleph before them. eg: aleph-zero.

7 0
3 years ago
Sqrt(2x-6)=3-x<br> Solve for x
soldi70 [24.7K]

Answer:

x = 3

Step-by-step explanation:

\sqrt{2x - 6}  = 3 - x

Square both sides of the equation

2x - 6 = (3 - x)^{2} = 9 - 6x + x^{2} \\

x^{2}  - 8x + 15 = 0\\

(x - 3)(x - 5) = 0

x = 3 or 5

Now, you must always check your results because a result may not satisfy the original equation.

If x = 3, then \sqrt{2x - 6} = \sqrt{2(3) - 6} = \sqrt{6 - 6}  = \sqrt{0} = 0  and 3 - x = 3 - 3 = 0

So 3 satisfies the original.

If x = 5, then \sqrt{2(5) - 6}  = \sqrt{10 - 6} = \sqrt{4} = 2,  but 3 - x = 3 - 5 = -2.  Therefore, 5 does NOT satisfy the original equation.

That means that x = 3 is the solution to the equation.

5 0
3 years ago
Mary had five and one-half dollars. She spent tw wo and one-fourth dollars on a snack. How much money does Mary have left?
Levart [38]
5/1-1/4=4/3 i thinkkkkkkkkkk so
7 0
3 years ago
What is 52,000,000 × 706,000? A) 36712 × 10 13 B) 36712 × 10 12 C) 3.6712 × 10 13 D) 3.6712 × 10 14
Anna [14]
The answer is b its easy i had this one

3 0
3 years ago
A square and a rectangle have equal areas. If the dimensions of
Katena32 [7]

Answer:

L = 3√5

Step-by-step explanation:

A square and a rectangle have equal areas.

Area of a square = Area of a rectangle

L² = H * W

If the dimensions of the rectangle are 15 units by 3 units,

L² = 15 * 3

L² = 45

Determine the length of the side of the square.

L = √45

L = 3√5

6 0
3 years ago
Read 2 more answers
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