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Zigmanuir [339]
3 years ago
9

Technician A says that a ratio is a comparison between two values. Technician B says that in a compression ratio, the main value

s are the cylinder volumes at the two different piston positions, BDC and TDC. Who is right
Mathematics
1 answer:
natulia [17]3 years ago
6 0
Both technicians are right.


The compression ratio is the ratio ...
  (cylinder volume at BDC) / (cylinder volume at TDC)

Technician A might need to add that the comparison is one in which one value is divided by another (as opposed to comparison by subtraction).

Technician B might need to add that the volumes are divided one by the other. Knowing only two values doesn't tell you their ratio. Additional math must be performed.
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Find the GCF and LCM of 217x328x11 and 213x345x74and explain your reasoning.
AfilCa [17]

Answer:

Given expressions are,

217 x 328 x 11

213 x 345 x 74,

Since, 217 = 7 × 31

328 = 2 × 2 × 2 × 41,

11 = 1 × 11,

So, we can write, 217 x 328 x 11 = 7 × 31 × 2 × 2 × 2 × 41 ×  1 × 11

Now, 213 = 3 × 71

345 = 3 × 5 × 23,

74 = 2 × 37,

So, 213 x 345 x 74 = 3 × 71 × 3 × 5 × 23 × 3 × 5 × 23

Thus, GCF ( greatest common factor ) of the given expressions = 1 ( because there are no common factors )

We know that if two numbers have GCF 1 then their LCM is obtained by multiplying them,

Hence, LCM ( least common multiple ) of the given expressions = 217 x 328 x 11 x 213 x 345 x 74

6 0
4 years ago
Solve for y <br> 3y-6+2y=8y-(3y+6)
ExtremeBDS [4]

Answer:

y could be any no and its gonna still work

Step-by-step explanation:

5y-6=5y-6

5y=5y

3 0
4 years ago
Read 2 more answers
Consider the algebraic expression --50 + 2a
lisabon 2012 [21]

Answer:

-45

Step-by-step explanation:

-50 + 2a represents the sum of the constant -50 and twice the value of the variable a.

If a = 2.5, then -50 + 2a has the value  -50 + 2(2.5) = - 50 + 5 = -45.

8 0
4 years ago
Given the set of data below, which measure(s) will change if the outlier is removed? (Check all that apply.)
kolezko [41]
The mean would change
8 0
3 years ago
Read 2 more answers
Please help me with this math question!
MatroZZZ [7]
Harry's trainer recommends Harry drink
  8*(8 oz) = 64 oz
of water per day.

A pint is 16 oz, so this amounts to
  (64 oz)*(1 pt)/(16 oz) = 4 pt
of water per day.

By drinking 3 full bottles of water, Harry drank
  3*(1 1/4 pt) = 3 3/4 pt
of water.

This amount of water (3 3/4 pt) is less than the 4 pt recommended by the trainer. Harry's claim that he drank the full amount is not true.
6 0
4 years ago
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