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Leona [35]
2 years ago
7

The jar only contains nickels and dimes altogether there are 10 coins total of the value is 90 cents how many nickels and how ma

ny dimes are there in the jar
Mathematics
1 answer:
lilavasa [31]2 years ago
3 0
Write a system of equations and solve.

x + y = 10
5x + 10y = 90

Multiply and combine equations

-5x - 5y = -50
5x + 10y = 90
------------------
5y = 40
y = 8
x = 2

There are 2 nickels and 8 dimes in the jar. Hope this helps! :)
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Leanne Raymond Montel and Emily body gift for their soccer coach the total cost of the gift including tax was $55.80 Montel paid
Flauer [41]

Solution: The total cost of the gift including the tax = $55.80

The amount paid by Montel = $14

The amount paid by Raymond is

\frac{1}{3} \times 55.80

18.6

Therefore, Raymond paid $18.6

The amount paid by Emily is

25% of 55.80

0.25 \times 55.80 = 13.95

Therefore, Emily paid $13.95

We also know that the remaining amount is paid by Leanne.

Therefore, the remaining amount is:

Total amount - Amount paid by Montel, Raymond and Emily

55.80 -(14+18.6+13.95)

55.80 - 46.55

9.25

The amount paid by Leanne is $9.25

We clearly see, Raymond has paid $18.6, which is the greatest part of the cost $55.80

7 0
2 years ago
Find the sum of the first five terms using the geometric series formula for the sequence 1/2, -1,2,-4…
sammy [17]

The sum of the first five terms is 11/2

<h3>How to determine the sum?</h3>

The series is given as:

1/2, -1,2,-4…

Calculate the common ratio of the series using

r = -4/2

Evaluate

r = -2

The sum is then calculated as:

S_n = a\frac{1 - r^n}{1 - r}

This gives

S_n = \frac{1}{2} * \frac{(1 - (-2)^5}{1 + 2}

Evaluate

S_n = \frac{1}{2} * \frac{33)}{3}

Evaluate

S_n =\frac{11}{2}

Hence, the sum of the first five terms is 11/2

Read more about series at:

brainly.com/question/11346378

#SPJ1

7 0
1 year ago
I need help with this please ASAP!!!!
OlgaM077 [116]

Answer:

0.58

Step-by-step explanation:

You did everything right. You just had to find the square root of 0.34 which is 0.58.

:)

7 0
2 years ago
Read 2 more answers
3. Combine like terms: <br> 14 + 3 + 2c -20c <br><br> Solve for x:<br> x - 12= 20
Aneli [31]

Answer:

-18c + 17

x = 32

4 0
2 years ago
Addison has a balance of $3,450 on her credit card that has an APR of 18%. She currently pays the minimum monthly payment of $86
malfutka [58]

Answer:

Addison can eliminate $45 from Food/Clothes and $41 from Entertainment.

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
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