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
xeze [42]
3 years ago
9

James has dimes and quarters saved up in his change jar. He has a total of 162 coins totaling $31.20. James has dimes

Mathematics
1 answer:
SashulF [63]3 years ago
4 0

The question is incomplete:

James has dimes and quarters saved up in his change jar. He has a total of 162 coins totaling $31.20 what is the total amount james has in quarters?

a. $10.00

b. $6.20

c.$15.50

d.$25.00

Answer:

d.$25.00

Step-by-step explanation:

With the information provided, you can write the following equations given that dimes are equal to 0.10 and quarters to 0.25 to determine the number of dimes and quarters that James has:

x+y=162 (1)

0.10x+0.25y=31.20 (2), where:

x is the number of dimes

y is the number of quarters

First, you can solve for x in (1):

x=162-y (3)

Then, you have to replace (3) in (2) and solve for y:

0.10(162-y)+0.25y=31.20

16.2-0.10y+0.25y=31.20

0.15y=31.20-16.2

0.15y=15

y=15/0.15

y=100

Finally, you have to replace the value of y in (3) to find x:

x=162-100

x=62

Now, you know that James has 100 quarters and you can multiply this number for the value of a quarter to find the amount James has in quarters:

100*0.25=25

According to this, the answer is that James has $25 in quarters.

You might be interested in
Graph the function. Identify the vertex and axis of symmetry<br> f(x) = –x2 – x + 2
sergij07 [2.7K]
I hope this is right (-5) + (-4) + (7);
= -9 + 7;
<span>= -2</span>
5 0
3 years ago
Find the slope and the y-intercept of the line.<br><br> Y=-3/2x+7
goldenfox [79]
The slope is
3/2

Hope this helps
3 0
3 years ago
Read 2 more answers
Consider the given function of an arithmetic sequence.<br><br> f(n) = -5n + 8
Goshia [24]

Answer:

f(9) = -37

Step-by-step explanation:

f(n) = -5n + 8

f(9) = -5(9) + 8

f(9) = -45 + 8

f(9) = -37

8 0
2 years ago
Which numbers are a distance of 6 units from 2 on the number line? Select the location on the number line to plot each point.
Jlenok [28]

Answer:

We reach at 8.

Step-by-step explanation:

The starting point is 2 .

Jump at the six places, the final point reaches at 8, so the point is 8.

6 0
3 years ago
Lines L and M are parallel. Lines t^1 and t^2 are transversals. What is m&lt;1 if m&lt;4=65*? Justify your answer. (Ps- there is
Diano4ka-milaya [45]
The complete question in the attached figure

we know that
m∡4=65°
m∡4=m∡2---------> by internal alternate angles
m∡5=m∡3---------> by internal alternate angles

m∡1=180°-m∡2---------> 180°-65°--------> m∡1=115°

the answer is 
m∡1=115°

3 0
3 years ago
Other questions:
  • The cost of four sweaters an two pairs of jeans is 140$. The cost of two sweaters an three pairs of jeans is $150.
    10·2 answers
  • X^2/(x+2) + 2 (x+2)/x^2 = 3 solve <br>please help me with steps​
    5·1 answer
  • Dad is twice as old as Jon. Grand-Pa is seven years older than three times Jon's age. The sum of their age is 145 years. How old
    9·1 answer
  • Help me in these please. You will then get BRAINLIEST ​
    12·1 answer
  • A grocery store charges $2,49 per pound for organic apples. What is the cost c, in dollars, of p pounds of
    12·1 answer
  • Determine the center and the diameter of the circle with the equation. x^2-6x+y^2+8y=24
    13·1 answer
  • If a cone has a height of 8 inches and a side measurement of 10 inches, what is the radius of its base?
    5·1 answer
  • Find m1 and m2 . Tell which theorem can be used.<br><br> m1 =<br> by the…<br> m2 =<br> by the…
    11·1 answer
  • What is the y-intercept ??? Please show step by step!!
    10·2 answers
  • The distance between -2 1/2 - (-3)
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!