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Ira Lisetskai [31]
2 years ago
11

ABC Bookstore sells new books, n, for $12, and used books, u, for $8; and magazine,m,for $5 each. the store sold 5 more used boo

ks than new books, and twice as many magazines, new books, and old books did ABC bookstore sell?
A. n=12; u=14;m=7
B.n=12;u=8;m=5
C.n=14,u=12;m=7
D.n=7;u=12;m=14
Mathematics
1 answer:
Thepotemich [5.8K]2 years ago
4 0

Answer:

  D.  n=7; u=12; m=14

Step-by-step explanation:

Check the offered answers against the problem statement. Only choice D has 5 more used than new books.

_____

The prices are unused in answering the question. They can be ignored.

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the cost of a family membership at a health club $58 per month plus a one time 129 start up fee . if a family spent 651 , how ma
Lady_Fox [76]

Answer:

9 months

Step-by-step explanation:

651=58x+129

-129         -129

522=58x  divide 522 by 58

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7 0
2 years ago
What is slope intercept
Aliun [14]

Answer:

Slope Intercept is the equation of a straight line in the form y = mx + b where m is the slope of the line and b is its y-intercept.

Step-by-step explanation:

3 0
2 years ago
If the length of AO is double the length of CO, the length of BO is?
andreev551 [17]

BO is double that of DO. In other words, BO is two times longer than DO. The answer is choice B

For example, if DO were 3 units long, then BO would be 6 units long (2*3 = 6). This works because the triangles DCO and BAO are similar triangles. The corresponding sides are in the same ratio or proportion to one another. The larger triangle (BAO) has sides that are twice as long as the smaller triangle's (DCO) corresponding sides.

Side note: we can prove the triangles to be similar using the AA (angle angle) similarity theorem. The first pair of angles are the vertical angles DOC and BOA which are congruent to each other.The second pair is CDB and ABD which are congruent by the alternate interior angle theorem. Check out the attached image for a visual.

7 0
3 years ago
Needed help asap please and thank you so much !
Novosadov [1.4K]

Step-by-step explanation:

based on the story told I expected completely different questions.

but for the actually asked question the whole thing about gaining our not gaining weight is competent irrelevant. ignore it.

so, all we need to do is looking at the row totals.

27.4% of the participants took 1 vitamin.

49.5% of the participants took more than 1 vitamin.

so, 49.5% + 27.4% = 76.9% of all participants are taking vitamins in some form.

therefore, the second answer option is correct.

8 0
1 year ago
What is the area of this quadrilateral need help ASAP
vova2212 [387]

Answer:

42

Step-by-step explanation:

The figure is broken into different shapes so you find the area of each shape shown and add them up!

Step one: find the area of the triangle. 1/2*base*height* The base is 3 and the height is 4. it will be 6. This applies to the second triangle on the bottom as well. The total of both triangle is 12.

Step two: find the area of the rectangle.base*height. All you have to do is 10*3 which is 30.

Step three: now add up all the areas you got. 30+12. which is 42.

hope this helps :)

4 0
3 years ago
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