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OLga [1]
3 years ago
14

Can someone please help me with this

Mathematics
2 answers:
Dmitry [639]3 years ago
5 0
The answer is c

Explanation: it’s c because why can’t it be c because c is just amazing and we love c
REY [17]3 years ago
3 0
Your answer is C. $1.48
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there are nickels, dimes, and quarters in a piggy bank. altogether, the coins are worth $3.65. the number of dimes is three time
hoa [83]

This question is solved using a system of equations, and doing this, we get that: There are 9 quarters, 4 nickels and 12 dimes.

I am going to say that:

x is the number of nickels.

y is the number of dimes.

z is the number of quarters.

In all, they are worth $3.65.

A nickel is worth $0.05, a dime is worth $0.1 and a quarter is worth $0.25, so:

0.05x + 0.1y + 0.25z = 3.65

Dimes: 3 times greater than nickels:

This means that:

y = 3x

Quarters: One greater than double the number of nickels:

This means that:

z = 2x + 1

Value of x:

We have y and z as function of x, so we can replace into the equation and find the value of x, so:

0.05x + 0.1y + 0.25z = 3.65

0.05x + 0.1(3x) + 0.25(2x+1) = 3.65

0.05x + 0.3x + 0.5x + 0.25 = 3.65

0.85x = 3.4

x = \frac{3.4}{0.85}

x = 4

y and z:

y = 3x = 3(4) = 12

z = 2x + 1 = 2(4) + 1 = 9

There are 9 quarters, 4 nickels and 12 dimes.

A similar question is found at brainly.com/question/17096268

4 0
3 years ago
Please help!<br><br> Find the measure of the angle labeled with the question mark.
zmey [24]

Answer:

it is 125°

Step-by-step explanation:

alternate interior angles are equal

7 0
3 years ago
Yesenia swims laps at a pool. For every 10 laps she swims the backstroke, she swims 15 laps of freestyle. Which ratio shows the
Orlov [11]

Answer:

2 3

Step-by-step explanation:

8 0
3 years ago
Members of a book club go out to lunch and decide to split the bill. Their bill is $27.00, plus they want to leave a 15% tip. Th
sashaice [31]
$27.00x.15=4.05
27.00+4.05=$31.05
$31.05/3= 10.35
Each person will pay $10.35
3 0
2 years ago
Read 2 more answers
Work out the greatest possible value of 3x-2y with the numbers 5,6,7,8,9,10
Gekata [30.6K]

Answer:

The greatest possible value of 3x - 2y is 20

Step-by-step explanation:

3x - 2y ------- 1

For getting the greatest possible value we must get the greatest value available, which is 10 and put it in place of x .

As 2y is being subtracted in the eq 1, we must put the smallest value available in the eq 1 to get the greatest possible result.

put x = 10 and y = 5 in eq 1

3(10) - 2(5)

= 30 - 10

= 20


Smallest possible value from the eqaution will be obtained by putting y = 10 and x = 5

3 (5) - 2 (10)

= 15 - 20

= -5



4 0
3 years ago
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