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lina2011 [118]
3 years ago
15

Heather bought a CD on sale for $11

Mathematics
1 answer:
adell [148]3 years ago
8 0

Answer:

Heather paid $26.25 for both items

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On number three how do u get the anser 15/4
Talja [164]

ration?  You deserve better from your teacher.

The ratio of auditorium to theater seats is

1200:320

That's a perfectly valid answer and we could stop here if we weren't asked for lowest terms.  Here I can see that 12 and 32 have a common factor of 4 and both these end in zero so 40 is a common factor:

1200:320 = 30:8

We can keep reducing by another factor of 2,

1200:320 = 30:8 = 15:4

There's our 15/4, which we get when we write the ratio as a fraction.

Answer: 15/4

--------------------------

This question implies a ratio is just a fraction, which it isn't.  Let's quickly note the differences.

A ratio can have zero on either side;  1:0 is a perfectly valid ratio but 1/0 is not a valid fraction.  A ratio can't be all zeros -- that's not allowed.

A ratio can have more than two numbers.  3:4:5 is a common ratio that gives rise to a right triangle.

Like fractions, ratios can be reduced:  For λ≠0,

λa : λb : λc = a:b:c

8 0
3 years ago
Does this table represent a function? Why or why not?
Jobisdone [24]

It is a function and the answer is B


3 0
3 years ago
Read 2 more answers
What is the decimal equivalent to 66%?
igomit [66]

Answer:

0.66

Step-by-step explanation:

Note: ALWAYS divide the percentage by 100.

7 0
3 years ago
A ball player is at bat 55 times as hits the ball 33 times. Want ratio of his times at bat does he not hit the ball?
77julia77 [94]

Answer:55:33

Step-by-step explanation:

55:33

4 0
4 years ago
Read 2 more answers
What value of z makes the equation true? 0.2z -8 =0.4z -7
alukav5142 [94]

Answer:

X= -0.4545

Step-by-step explanation:

YOU HAVE TO SUBTRACT .2Z FROM .4Z WHICH GETS YOU .2 ON THE RIGHT SIDE

THAT WOULD MEAN YOU HAVE TO CLEAR OUT THE SEVEN BY ADDING IT ON BOTH SIDES GETTING -1

THEN YOU WOULD HAVE -1=.2Z

THEN DIVIDE BY .2 GETTING YOU A TOTAL OF -0.4545 WHEN YOU FINISH DIVIDING

4 0
3 years ago
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