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Vedmedyk [2.9K]
3 years ago
6

I need help quiz it’s due in 6mins

Mathematics
1 answer:
Cerrena [4.2K]3 years ago
5 0

Answer:

45

Step-by-step explanation:

66 nickels = 66 x $0.5 = $3.30

$7.80 - $3.30 = $4.50

$4.50 / $0.10 = 45

Brielle has 45 dimes.

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Answer:

Answer is attached in images

Step-by-step explanation:

Given:

x+z=1 and

z=4-x^{2} -y^{2}

Now,

1-x=4-x^{2} 2-y^{2} 2\\x^{2} -x+y^{2} \\x^{2} -x+1/4+y^{2} =3\\(x-1/2)^{2} +y^{2} =3+1/4\\(x-1/2)^{2} +y^{2} =(\sqrt(13)/2)^{2}

Which is circle with center (1/2,0) radius

\sqrt{13/2} take, x=1/2+\sqrt{3} /2 cos\alpha \\y=\sqrt{13}/2 sin\alpha        0\leq \alpha \leq 2\pi

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4 0
3 years ago
I need help on this question
Flura [38]

Answer:

you are adding a dollar and 50 cents each time

Step-by-step explanation:

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6 0
3 years ago
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riadik2000 [5.3K]
Your answer should be 23/80
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3 years ago
If 9 is added to twice a number and this sum is multiplied by 2​, the result is the same as if the number is multiplied by negat
bagirrra123 [75]
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8 0
3 years ago
A vet borrows $12,000 for 4 years. The total interest paid was $960. What was the interest rate on the loan?
Alchen [17]

Answer:

2% per year.

Step-by-step explanation:

Solving our equation

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3 years ago
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