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
WARRIOR [948]
3 years ago
10

tess has 100 dimes and quarters , if the total of the coins is $21.40 how many of each of the coins does she have ?? Using subst

itution or elimination find the answer
Mathematics
1 answer:
Zanzabum3 years ago
4 0

Answer: 24 and 76

Step-by-step explanation:

{

d

+

q

=

100

10

d

+

25

q

=

2140

From the first equation, we have  

d

=

100

−

q

Substituting that into the second equation, we have

10

(

100

−

q

)

+

25

q

=

2140

⇒

1000

−

10

q

+

25

q

=

2140

⇒

15

q

=

1140

⇒

q

=

1140

15

=

76

Knowing that  

q

=

76

we can substitute that value into the first equation to obtain

d

+

76

=

100

∴

d

=

24

Thus, Sue has  

24

dimes and  

76

quarters.

You might be interested in
A square rotated about its center by 360º maps onto itself at different angles of rotation. You can reflect a square onto itself
harkovskaia [24]

A square rotated about its center by 360º maps onto itself at 4 different angles of rotation. You can reflect a square onto itself across 4 different lines of reflection.

8 0
3 years ago
Read 2 more answers
jodi and laura went out to dinner at their favorite sandwich shop . if their bill w's $21.95 and they wanted to leave a 15% tip
Molodets [167]

Answer:

$3.293

Step-by-step explanation:

You would multiply your total amount, 21.95, by your tip divided by 100, so 0.15. It would look like this: 21.95 x 0.15 = 3.293. Therefore, you would give the waitress a $3.293 tip. I Hope This Helps :)

4 0
3 years ago
Geometry help please! Which rule explains why these triangles are scalene in both of these problems? A. SSS B. SAS C. AA D. None
yKpoI14uk [10]

Answer:

B. SAS

Step-by-step explanation:

67-61 degrees-47

side-angle-side

SAS

4 0
3 years ago
HELPPPPPPP!!!! 0÷0<br><br>Find the RATIO and the EXACT VALUE of the given CscB.​
AlekseyPX

Answer:

Step-by-step explanation:

take angle B as reference angle

using cosec rule

cosec B=hypotenuse/opposite

cosec B=13/12

cosec B=1.08

B=cosec 67

B=67 degree

for ratio,

cosec B=13/12

7 0
3 years ago
Q
katrin2010 [14]

Answer:

v= -(-v)

Step-by-step explanation:

3 0
3 years ago
Other questions:
  • Using the given zero, find one other zero of f(x). Explain the process you used to find your solution. 1-6i is a zero of f(x) =
    13·1 answer
  • if georgia is 59,424.77 square miles, then what is the area of georgia rounded to the nearest square mile?
    8·1 answer
  • Need some help on this one
    6·2 answers
  • What t represent for the equation a(t)=210-15t
    10·1 answer
  • How to make a dot plot
    11·2 answers
  • Joey is very hungry. He says he wants to eat a 100- square- inch area of pizza. Which size(s) of pizza should he order? Why?
    5·1 answer
  • The probability of picking a red marble from a bag is 20%. What are the oddthe s in favor of picking a red marble?
    11·1 answer
  • What is 4+4<br> Hahahahaahahahahahhaha<br> I reallly need the aenswer not jk pls
    15·2 answers
  • Five basketball players try to make as many points as possible in each game. They have a mean of 12 points per game. If the firs
    8·2 answers
  • A rectangular prism has a base with a length of 25, a width of 9, and a height of 12. A secod prism has a square base with a sid
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!