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
galina1969 [7]
4 years ago
6

Giuliana has 22 quarters and dollar coins worth a total of $10.75.

Mathematics
1 answer:
Tom [10]4 years ago
7 0
The answer is d + 0.25(d - 22) = 10.75
 
d - the amount of dollar coins
q - the amount of quarters

It is given: d + q = 22

The quarter is $0.25, therefore:
d + 0.25q = 10.75

Now, we have the system of equations:
d + q = 22
d + 0.25q = 10.75

According to the first equation:
d + q = 22                      <span>⇒ q = 22 - d</span>

We will replace q in the second equation:
d + 0.25q = 10.75          ⇒ d + 0.25(22 - d) = 10.75
You might be interested in
Select the decimal that is equivalent to 45/54
lina2011 [118]

Answer:

.83

Step-by-step explanation:

if brainiest is earned its greatly Appreciated

6 0
3 years ago
Identify each of the following as rational or irrational
Lera25 [3.4K]

√23-irrational
104.42-rational
√64-irrational
49.396-rational
10.97846727460-rational
8 0
2 years ago
What is the probability that a two-digit number selected at random has a tens digit less than its units digit
Reika [66]

The probability that a two-digit number selected at random has a tens digit less than its units digit is 0.2667 (4/15).

A=24B=90\\\\P=A/B\\\\P=24/90\\p=4/15

There are 90 two-digit numbers (99-9). Of these, six numbers are divisible by 15 (15, 30, 45, 60, 75, 90). This is also divisible by 5. Therefore, the preferred case is 30-6 = 24. Therefore, the required probability is 24/90 = 4/15.

The probability of an event can be calculated by simply dividing the number of favorable results by the total number of possible results using a probabilistic expression. Whenever you are uncertain about the outcome of an event, you can talk about the probability of a particular outcome, that is, its potential.

Learn more about probability here: brainly.com/question/24756209

#SPJ4

6 0
2 years ago
I don't know what to do in this problem.
RUDIKE [14]
If you see that the temperature rose in the next 4 hours and the temperture was taken at noon so the answer would be D there was no change in temperature
5 0
3 years ago
During one week, David worked 16 hours at his normal hourly rate and
asambeis [7]

Answer:

43.49

Step-by-step explanation:

let his normal hourly rate be x

16x+7x/2=848

39x/2=848

x=848 ÷ 39/2

=43.48717

6 0
3 years ago
Read 2 more answers
Other questions:
  • An equilateral triangle has a side length of 16 cm work out the area of the triangle.
    8·2 answers
  • Please help!! Will put most brainliest!! Picture inserted
    6·1 answer
  • A loaf of bread from a local baker measures on the scale at 957.83 grams. If converted to ounces, what amount would that be? Rou
    13·1 answer
  • 7 times a number is 18 less than the square of that number. Find the positive solution.
    15·1 answer
  • Which will result in a difference of squares? (–7x + 4)(–7x + 4) (–7x + 4)(4 – 7x) (–7x + 4)(–7x – 4) (–7x + 4)(7x – 4)
    10·2 answers
  • A traditional postage stamp has a width of 4/5 inches and a length of 9/10. What is the area of a traditional postage stamp?
    14·2 answers
  • On the first day of the fiscal year, a company issues $65,000, 6%, five-year installment
    10·1 answer
  • A system of equations has infinitely many solutions. If 2y – 4x = 6 is one of the equations, which could be the other equation?
    14·1 answer
  • A $ 240 suit is maker down by 20% find the sale price
    6·1 answer
  • WILL MARK BRAINLIEST
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!