1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Bond [772]
3 years ago
15

There are 13 books on a shelf. 6 of these books are new. (a) What is the ratio of new books to used books? (b) What is the ratio

of all books to used books?
Mathematics
2 answers:
Drupady [299]3 years ago
7 0
If 6 of the 13 books are new, then 7 of them are used. The ratio of new (6) to used (7) is

6:7 or 6/7

Ratio of all books (13) to used books (7) is

13:7 or 13/7
Marianna [84]3 years ago
4 0
6 of 13 are new right? so that must mean 7 are used
You might be interested in
Let's simplify
Zielflug [23.3K]

Step-by-step explanation:

Given

=  \frac{1.5 \times  {10}^{4} \times 4.5 \times  {10}^{3}  }{2.5 \times 10 ^{2} }  \\ =  \frac{6.75 \times  {10}^{4 + 3} }{2.5 \times  {10}^{2} }  \\  = \frac{6.75 \times  {10}^{7} }{2.5 \times  {10}^{2} } \\  = 2.7 \times  {10}^{7 - 2}  \\  = 2.7 \times  {10}^{5}

Hope it will help :)

8 0
3 years ago
Which number sentence shows equivalent fractions?
Maksim231197 [3]
They are all the same amount of blocks.
7 0
3 years ago
If LN=54 and LM=31, find MN
kirza4 [7]
In this item, it is unfortunate that a figure, drawing, or illustration is not given. To be able to answer this, it is assumed that these segments are collinear. Points L, M, and N are collinear, and that L lies between MN. 

The length of the whole segment MN is the sum of the length of the subsegments, LN and LM. This can be mathematically expressed,
             LN + LM = MN

We are given with the lengths of the smalller segments and substituting the known values,
             MN = 54 + 31
            MN = 85

<em>ANSWER: MN = 85</em>
7 0
3 years ago
Read 2 more answers
Can anybody help me with this ?
BabaBlast [244]

Answer:

1st scenario: 163.3°

2nd scenario: 125.2°

3rd scenario: 142.3°

Step-by-step explanation:

1st scenario: angles 1 and 2 form a linear pair and add up to 180

2nd scenario: angles 1 and 4 are same-side interior and add up to 180

3rd scenario: angles 1 and 8 are corresponding and equal; if angle 7 is 37.7 then angle 8 is 142.3 (they form a linear pair). Since angles 1 and 8 are equal then angle 1 is also 142.3

6 0
3 years ago
A shopkeeper with a basket of eggs finds that if he sells 3 eggs at a time there is only one egg left if he sells four eggs at a
Agata [3.3K]

Answer:

Step-by-step explanation:

add a picture of the question please

7 0
3 years ago
Read 2 more answers
Other questions:
  • Simplify 2 to the 5th over 3 squared all raised to the 4th power.
    11·1 answer
  • What is the constant rate of change shown in the graph?
    15·1 answer
  • 3.6399; thousandths round it ​
    5·1 answer
  • Can someone help me on this question please?<br> Factorize x²-5x-6
    14·2 answers
  • What is 5% of 3200? Plz help bro​
    14·1 answer
  • A microwave is $299.99 but is on sale for 15% off. With
    5·1 answer
  • What is the equation of a line that contains the point (2.1) and is parallel to
    9·2 answers
  • Cendrick D'Amitrano works Friday and Saturday delivering pizza. He delivers 8 pizzas on Friday. How many pizzas must he deliver
    9·1 answer
  • Pls help im in dire need cause bainly doesnt got this yet
    15·2 answers
  • What is the area of the parallelogram?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!