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olganol [36]
2 years ago
14

A total of 22 dimes and nickels have a value of $1.90. If d represents the number of dimes and n represents the number of nickel

s, which system of equations models this situation?
theres an image

Mathematics
1 answer:
Eva8 [605]2 years ago
7 0

Answer:

d + n = 22 and 0.1d + 0.05n = 1.9

Step-by-step explanation:

Let d represents the number of dimes and n represents the number of nickel.

Total of dimes and nickels = 22

Therefore, d + n = 22

1 dime = 10 cents = 0.1

1 nickel = 5 cents = 0.05

Value of 22 dimes and nickel = $1.90

So, 0.1d + 0.05n = 1.9

Hence, d + n = 22 and 0.1d + 0.05n = 1.9 models the given situation.

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Answer:

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55 = (3/4)(440) / t

t = 6 hours

So the answer would be "C"



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Write an inequality A family has less than $200 to spend on groceries. Use x as a variable​
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Answer:

$200 > x

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6. Ava had a rough day on the stock market. Her stocks dropped in value to
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Answer:

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Read 2 more answers
Complete the equivalent equation for -7x-60 =x^2 +10x
alex41 [277]

Answer:

(x+12)(x+5)

Step-by-step explanation:

Formula use: a²+bx+c

  • Make one side equal to zero:

Original:

-7x-60 =x² +10x

New:

x² + 17x + 60

  • Multiply A with C

New:

(1)x x 60 = 60

  • Find factors of 60 that when added, equal to 17.

New:

10 × 6, 60 × 1, 20 × 3, <u>5 × 12</u>, 4 × 15

5 times 12 equal 60, but when added equal to 17.

  • Replace the 17 with 5 and 12

New:

x² + 5x + 12x + 60

  • Break them off into two equations

New:

x² + 5x  l  12x + 60

  • Divide each equation into it's simpilest form. Make sure the numbers in the ( ) are the same.

New:

x(x + 5)  l  +12(x+5)

  • Answer: (x+12)(x+5)

6 0
3 years ago
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