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
larisa [96]
3 years ago
10

Can someone help me with these 2 last homework questions Thanks

Mathematics
1 answer:
Eva8 [605]3 years ago
6 0
31a) Think of $30.90 as 100% of her bill, we first want to find 6%
To work out how much this is, we need to divide the percentage by 100 to get a multiplier (decimal)
6/100 = 0.06
Multiply 0.06 and $30.90 to get the tax
$30.90 x 0.06 = 1.854
As we can't have part of a cent, we round to the nearest 100th
If the number to the right of this value is below 5 we round down, 5 or more we round up
4 is below 5 so we round down
$1.85

31b) For the total bill, we need to add together the original and the tax
$30.90 + $1.85 = $32.75

32a) Simple Interest = PRT
This means
P x R x T
We need to multiply together the Principal, Rate and Time span
We need to turn the percentage into a decimal, so we divide by 100 like before
3.2 / 100 = 0.032
$750 x 0.032 x 6 = $144

32b) To find the account balance, we need to add the interest to the original amount
$750 + $144 = $894
You might be interested in
Please help!! i have no idea how to do this
Deffense [45]

Answer:

D:15

Step-by-step explanation:

You divide thirty by two and get 15.

4 0
3 years ago
Read 2 more answers
3(9x-9)=16+3(-2x+9) please help me
Maru [420]
<span>3(9x-9)=16+3(-2x+9)
27x - 27 = 16 - 6x + 27
27x + 6x = 16 + 27 + 27
33x = 70
x = 70/33
x = 2 4/33

In short, Your Answer would be 70/33 or 2 4/33 

Hope this helps!</span>
5 0
3 years ago
6 1/4 as a decimal number
Musya8 [376]
Answer- 6.25 Your welcome.
4 0
3 years ago
Read 2 more answers
The absulote value of -8 and 5
Blababa [14]

The absolute value of -8 is 8 and the absolute value of 5 is 5. Absolute value is basically the number's distance from 0 on a number line, basically how many numbers it is away from 0. For that reason, it's always positive, regardless of whether or not the number is positive or negative. Hope this helped!

5 0
3 years ago
Read 2 more answers
Mrs. Baker conducted a survey in her classroom to determine what the students preferred to do during the summer break. Her surve
navik [9.2K]

Answer:

B. 840

Step-by-step explanation:

21 is 70% of 30 and 70% of 1,200 is 840.

4 0
3 years ago
Read 2 more answers
Other questions:
  • Which ordered pairs are solutions to the equation?
    11·1 answer
  • How many unique lines of reflection are in an equilateral triangle?
    11·1 answer
  • How do i solve this equation
    6·1 answer
  • Given: Circle k (O), OA and OC -radii, AP and CP - tangents, m∠AOC=150° Find: m∠APC
    5·1 answer
  • You open a bank account with $100 and deposit 15 every week. Create an equation to model the total amount of money,y, in dollars
    5·1 answer
  • True or False. A parallelogram sometimes has opposite sides that are not congruent.
    6·1 answer
  • HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP
    6·1 answer
  • The cost to rent a surfboard at the beach is $10.25 an hour plus an insurance fee of $25. Keith spent $55.75 when renting a surf
    6·1 answer
  • Find the value of 1×4+2×5+3×6......n×(n+3)​
    8·1 answer
  • in an election, there was 12 votes for Carl for every 23 votes for Macy. Macy received 345 votes. How many did Carl receive?​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!