On a class test, Lesley scored 4.5 points more than her friend Cathy. Lesley scored 81.5 points. Cathy's score, x, can be found using the equation below.The solution to the equation was calculated to be x = 36. Is this solution reasonable?

A.
Yes, it is reasonable because Lesley scored 4.5 points more than Cathy. Cathy scored more than 81.5 points.
B.
No, it is not reasonable because Lesley scored 4.5 points less than Cathy. Cathy scored less than 81.5 points, not more.
C.
Yes, it is reasonable because Lesley scored 4.5 points more than Cathy. Cathy scored 86 points.
D.
No, it is not reasonable because Lesley scored 4.5 points more than Cathy. Cathy scored less than 81.5 points, not more.

The number  939,515 rounded to the nearest tens is 939520.

What is rounding off of numbers?

We round off numbers to make them easier to remember and it also keeps their value approximately to the place it has been rounded off.

To round off any number to any place we'll look for the digit next to that place and if it is equal to or greater than 5 we'll add one to the previous digit and make all the digits after it zeroes and if the digit is less than 5 we do not add one to the preceding digit and simply make all the digit after it to zeroes.

Given, A number 939515 and we have to round it to the nearest ten.

To round this number to the nearest ten we'll look at the digit at the unit's place.

The digit at the unit place is 5 so we'll add 1 to the tens digit and make the unit digit zero.

Therefore the number 939515 rounded to the nearest tens place is

939520.

learn more about rounding of numbers here :

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Answer:

939,520

Step-by-step explanation:

You round up because you have a 5 in the tens place and as the saying goes: "Five or more up the score, four or less let it rest"

Answer:

The correct option is;

Step-by-step explanation:

The dimensions given are;

YX = 2 × AX (A = midpoint of YX)

ZX = 2 × CX (C = midpoint of ZX)

∠X and ∠X are congruent (Reflexive property)

Therefore, triangle XAC is similar to triangle XYZ (SAS similarity theorem)

Since ∠XYZ = ∠XAC segments YZ and AC are parallel from having equal angle on the same  side of the transversal YX

Therefore the correct option should be;

Answer:ΔBCZ ≅ ΔYAB

Step-by-step explanation: since we know the midpoint are <ABC we can see the that answer is correct.

Answer:

29

Step-by-step explanation:

To find the lower quartile you need to split it into 2 by finding the median

Set A: 73, 75, 79, 81, 84, 85

Set B: 47, 49, 51, 51, 55, 56

Now you have to find the median of each

A: 80

B: 51

Lastly, you subtract and get 29

Answer- z is equal to -5

The sum of eight and sixteen is equal to twenty-four

Is the proper way to word the expression

eight plus sixteen is equal to 24