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EastWind [94]
2 years ago
9

Help with this question

Mathematics
2 answers:
myrzilka [38]2 years ago
8 0
It would be B! feel free to mark me brainlist if i get it right!
babunello [35]2 years ago
3 0

Answer:

B

Step-by-step explanation:

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Burgers come in packs of 10. The cost of 10 burgers is £3.45. How much does 1 burger cost?
arsen [322]
Answer: 1 burger = £0.345

Explanation:

10 burger = £3.45
1 burger = £3.45/10
1 burger = £0.345
7 0
3 years ago
Suppose the length and width of the box in exercise 12 double. Does the surface area S double? Explain
Blizzard [7]
No, it does not.

In general, surface area is the sum of the areas of each face of a prism.  In a rectangular prism, we have length, width, and height.  

The area of the bottom of the prism and the top of the prism is the same, and can be represented as l*w.  This means that together, it is 2lw.

The area of the left and right faces of the prism is the same, and can be represented as l*h.  This means that together, it is 2lh.

The area of the front and back faces of the prism is the same, and can be represented as w*h.  This means that together, it is 2wh.

This gives us the equation

SA = 2lw+2lh+2wh

If we double the length and width, making them each 2l, we then have:

SA = 2(2l*2w) + 2(2l*h) + 2(2w*h)
      = 2(4lw) + 4lh + 4wh
      = 8lw + 4lh + 4wh

If the surface area had been doubled, we would expect 
4lw + 4lh + 4wh

No, it is not doubled.
4 0
3 years ago
What are the solutions to the equation (x – 2)(x + 5) = 0?
nataly862011 [7]

A product of two (or more) factor can be zero if and only if at least one of the factors is zero.

In other words, you cannot multiply two non-zero real numbers, and have zero as a result.

So, if we want the product of these two factors to be zero, at least one of them has to be zero.

The first factor is zero if

x-2 = 0 \iff x=2

The second factor is zero if

x+5 = 0 \iff x=-5

4 0
3 years ago
Read 2 more answers
What is the difference between axiom and postulate theorem
nydimaria [60]

Answer:

Axioms or postulates are universal truths. They cannot be proved. Theorem are statements which can be proved.

6 0
2 years ago
Screenshot of question below
MaRussiya [10]
Area: 20 x 30 so 600
perimeter: 20 + 20 + 30 + 30 = 100
8 0
2 years ago
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