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
Ber [7]
3 years ago
12

Barb’s Grandma is always creating math problems for her to solve. In one problem she gave Barb a store receipt that listed 72 id

entical items, each the same price, for a total cost of $*67.9* Barb’s grandma covered the first and last digits of the total price on the receipt with stars. Determine the value of the digits that Barb’s Grandma covered.
Mathematics
1 answer:
r-ruslan [8.4K]3 years ago
5 0

9514 1404 393

Answer:

  367.92

Step-by-step explanation:

72 = 9·8

In order for the total cost to be divisible by both 8 and 9, it must meet a couple of requirements:

  • The sum of the digits must be divisible by 9.
  • The last three digits must be divisible by 8.

In order for the sum of digits to be divisible by 9, the first and last digits must total 5 or 14. (The total of existing digits is 22. The sum needs to be 27 or 36.)

In order for the last three digits to be divisible by 8, the last digit must be 2*. So, the first digit must be 5-2=3.

The first digit is 3; the last digit is 2.

The total cost is 367.92. Each item price is 367.92/72 = $5.11.

_____

* 790/8 = 98.75, so (790 + 2)/8 will be 99. <em>792</em> is the only number starting with <em>79</em> that is divisible by 8.

You might be interested in
Hello! Can you please help me on these two problems? =)
poizon [28]

Yeah, I gotta read the questions better.

Perimeter not area.

diagonal length = √((28 - 12)² + (24 - 10)²) = 21.26

P = 12 + 10 + 28 + 24 + 21.26 = 95.26 units

sphere surface area = 4πR²

R = √(379.94 / 4(3.14) = 5.5 in

D = 2R = 11 inch

4 0
3 years ago
Please help! And 20 points! :3<br> I need help with these 3 questions-<br> -3-||
Katyanochek1 [597]

Answer:

18. Its 2 meters.

19. Its 0.2 grams

20. Its 1,920

Step-by-step explanation:

When you convert 200 centimeters to meters its 2.

When you convert 2,000 milligrams in grams its 0.2

15% of 12, 800 is 1,920

Hope this helps:)

8 0
3 years ago
Which organism is a consumer?<br> Oak tree<br> Rosebush<br> Prairie dog<br> Tomato plant
BlackZzzverrR [31]

Answer:

prairie dog

Step-by-step explanation:

because this eats the other organisims

7 0
2 years ago
1 Jessie’s bus ride to school is 5 minutes more than 23 the time of Robert’s bus ride. Which graph shows the possible times of J
Lunna [17]
Which graph are you supposed to pick?
7 0
3 years ago
The temperature in Berlin is -7 °C and the temperature in Istanbul is -3 °C.
Orlov [11]

Answer:

(a) is 4*C and (B) is 16*C

5 0
2 years ago
Other questions:
  • Bill said, “I am half as old as my sister was last year.” If Bill is now 8 years old, how old is Bill’s sister?
    9·1 answer
  • The graph below shows the value of Edna's profits f(t), in dollars, after t months:
    5·2 answers
  • Solve for x need help asap
    11·1 answer
  • Simplify x + 2 + x + 2 + x + 2 + x + 2 + x + 2 + x + 2 + x + 2 + x + 2 + x + 2. Write in simplified form, giving reasons. Someon
    9·2 answers
  • What would you expect the nominal rate of interest to be if the real rate is 4.4 percent and the expected inflation rate is 7.5
    9·1 answer
  • What are the roots of this quadratic equation? 3x^2+10=4x
    5·1 answer
  • The U.S. Department of Transportation estimates that citizens own more than 12,720,000 registered boats. Which shows this number
    8·2 answers
  • 2) (6 pts) A surveyor has taken the measurements shown below. Find the distance<br> across the lake.
    13·1 answer
  • the chart shows the hourly wage for the employees at the local newspaper office what is the hourly wage of most of the employees
    12·1 answer
  • Sara’s hair was 25 inches long. Three years later it was 43 inches long. What was the percent increase rounded to the nearest hu
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!