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
yKpoI14uk [10]
1 year ago
8

Can someone please help me this this??

Mathematics
1 answer:
Brrunno [24]1 year ago
5 0

Answers:

bio = 258

sociology = 169

============================================================

Work Shown:

x = number of bio textbooks

y = number of sociology textbooks

x+y = 427 books sold total

y = x-89 since 89 less sociology textbooks were sold compared to bio

Apply substitution to get the following

x+y = 427

x+x-89 = 427 ... replace y with x-89

2x-89 = 427

2x = 427+89

2x = 516

x = 516/2

x = 258 bio textbooks were sold

y = x-89

y = 258-89

y = 169 sociology textbooks were sold

You might be interested in
Which if the following can be contained in a plane?
andrezito [222]

Answer:

A and B im pretty sure



4 0
3 years ago
Read 2 more answers
Anne, Mary, and Lynn team up to pick apples. Anne can pick 4 baskets of apples per hour, and Mary can pick 5 baskets per hour. A
krek1111 [17]

Answer:

Lynn can pick nine baskets in three hours

Step-by-step explanation:

Anne and Mary pick 9 Baskets an hour

so in a half an hour they pick 4 and a half.

But it says they pick 6 together so lynn picked one and a half baskets in a half an hour

so over an hour she picks three

and over three hours she picks nine.

4 0
3 years ago
Read 2 more answers
Sarafina and Katie have between $105 and $420 dollars to spend on jewelry for Christmas presents for their friends. If they buy
algol13

Answer:

66

Step-by-step explanation:

105+420=525   (Total Money)

7x3.25=22.75   (Cost of all bracelets)

8x11.74=93.92   (Cost of all necklaces)

93.92+22.75=116.67   (Cost of all Christmas presents)

525-116.67=408.33   (Total money - Cost of all Christmas presents)

408.33/6.15=66.39...   (Amount of necklaces)

since in real life you can only buy a whole number of things, you would round down 66.39 to 66. I hope this helped!

5 0
2 years ago
How many different lock combinations are possible on a bike lock with 4 rotating discs that go from 0-9
AlexFokin [52]
You would multiply 9x___ whatever the other number is witch is 4
3 0
3 years ago
Yesterday, the snow was 2 feet deep in front of Archie’s house. Today, the snow depth dropped to 1.6 feet because the day is so
IgorLugansk [536]

Answer: The depth of the snow has changed .4 inches. This is because it has melted in the warm weather. You can find the difference, by subtracting 1.6 from 2.          

Step-by-step explanation:

2 - 1.6= .4    .4 would be your answer

Hope it helps!!!!

4 0
3 years ago
Other questions:
  • Last year Boris paid £256 for his car insurance.
    6·1 answer
  • What is this equation? -4b^2-6b-10
    10·2 answers
  • Round 97.635 to <br> a) the nearest one<br> b) the nearest tenth <br> c) the nearest hundredth
    11·2 answers
  • Z=-302+19.3i<br> What is the real part of z ?<br> What is the imaginary part of z?
    12·1 answer
  • Math question from moby max . 8(3+a)=64 what is a
    13·2 answers
  • How many 3-digit hexadecimals start with a letter (A-F) or end with a numeral (0-9) (or both)? Explain.
    12·1 answer
  • 3 Anthony has
    9·1 answer
  • If Frank builds a concrete rectangular walkway that is 4 feet wide by 1.5 feet deep, by 20 feet long from the house to the stora
    15·2 answers
  • Find all solutions of the equation in the interval [0, 2pi).
    13·1 answer
  • If K is the midpoint of ER, EK = z+5,and ER=4x+2,What is the length of K R?
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!