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
Darina [25.2K]
3 years ago
14

Can you help me with the problem listed in the pictures below? Please and thank you. Will mark BRAINLIEST!!! :)

Mathematics
1 answer:
vagabundo [1.1K]3 years ago
6 0

Answer:

14 books

Step-by-step explanation:

Let b = number of books at the beginning

She sold 1/2 of the books

b - 1/2 b

This is how many she had left

Then she bought 7

b - 1/2 b + 7

this equals 14

b - 1/2 b + 7 = 14

Combine like terms

1/2 b + 7 = 14

Subtract 7 from each side

1/2 b = 14-7

1/2 b = 7

Multiply each side by 2

1/2 b * 2 = 7*2

b = 14

She started with 14 books

You might be interested in
On a biased dice , the probability of getting a 6 is 4/5. The dice is rolled 500 times. How many sixes would you expect to roll?
tatyana61 [14]

Find 4/5 of 500.

4/5*500=400

You will roll 400 sixes.

5 0
3 years ago
Explain how you can tell, without computing, whether the quotient one -half divided into 6 is greater than one or less than one
Helga [31]
If you take 1/2 of a pizza and divide it up between 6 people, will you have more than 1 whole Pizza or less than 1 whole pizza?

If you divide up a fraction into smaller pieces it will always be less than 1 because it started out less than 1 and you're making it even smaller.
8 0
3 years ago
On February 1, the electricity meter reading for the Smith residence was 19,423 kilowatt hours. On March 1, the meter read 20,28
Karolina [17]
A. How many kilowatt hours of electricity did the Smiths use during February?

Kilowatt hours of electricity the Smiths used during February:
Meter read on March 1 - meter read on February 1 =
20,288 kilowatt hours - 19,423 kilowatt hours =
865 kilowatt hours
Answer: The Smiths used 865 kilowatt hours of electricity during February

b. How many kilowatt hours did they use during March?

Kilowatt hours of electricity the Smiths used during March:
Meter read on April 1 - meter read on March 1 =
21,163 kilowatt hours - 20,288 kilowatt hours =
875 kilowatt hours
Answer: The Smiths used 875 kilowatt hours of electricity during March
8 0
3 years ago
The volume of a sphere is 36π in³. What is the radius of the sphere?
Inessa05 [86]
36pi = 4/3 * pi * r^3
27 = r^3
r = 3 in
7 0
3 years ago
Read 2 more answers
Choose Yes Or No To Tell if the fraction 4/9 will make each equation True.
BlackZzzverrR [31]

Answer:

true, true, false, true

Step-by-step explanation:

(4/9)*63=28

(4/9)*18=8

(4/9)*96=42.666667

(4/9)*36=16

5 0
2 years ago
Other questions:
  • How do I factorize y= x³-4x²+3x ?
    12·1 answer
  • Find the slope of a line that passes through (-4,-5) and (-3,5)
    5·1 answer
  • For the diagram shown, which angles are corresponding angles ∠3 and ∠7 ∠8 and ∠6 ∠4 and ∠7 ∠3 and ∠5
    12·1 answer
  • alex reads 12 pages. jenna reads 15 pages in 12 minutes. they are both reading 60- page magazine who will finish reading first
    5·1 answer
  • My number has 2 hundreds. The tens digit is 9 more than the ones digit my number is
    12·2 answers
  • Will give brainliestt
    5·2 answers
  • Where are they getting the $8.18 and $6.32 numbers for each calculation?
    11·1 answer
  • Help<br><br> Please<br> See the picture
    12·1 answer
  • Suppose that weight of adolescents is being studied by a health organization and that the accompanying tables describes the prob
    5·1 answer
  • (PLEASE HELP ME OUT IT'LL BE WORTH IT) Shipping company A charges a flat fee of $8 plus 0.75 for each pound. Shipping company B
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!