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Svet_ta [14]
3 years ago
6

A bag contains nickels, quarters and pennies. If a handful of coins brings in five nickels, 3 quarters, and nine pennies, how mu

ch money is expected to be in the bag if 90 coins are in the bag?
Mathematics
1 answer:
LenKa [72]3 years ago
7 0
An estimated guess of $5.50 but the amount could range anywhere from $1.82 to $18.25
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Write an inequality to show how much more needs to be saved to reach $100?
pentagon [3]
It’s d or a but it’s probably d don’t take my word for it boy
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3 years ago
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a small plane lands at a point 324 miles east and 92 miles north of the point at which it took off. Find the distance the plane
Setler79 [48]

Answer: 336.80 miles, 15.85^{\circ} North of east

Step-by-step explanation:

Given

Plane lands at a point 324 miles east and 92 miles north

Distance is given by using Pythagoras theorem

\Rightarrow d=\sqrt{324^2+92^2}\\\\\Rightarrow d=\sqrt{113,440}\\\\\Rightarrow d=336.80\ \text{miles}

Direction is given by using figure i.e.

\Rightarrow \tan \theta=\dfrac{92}{324}\\\\\Rightarrow \tan \theta=0.2839\\\\\Rightarrow \theta=15.85^{\circ}

Direction is 15.85^{\circ} North of east

7 0
3 years ago
I need help I don’t understand this
Hatshy [7]

Answer:

Step-by-step explanation:

lets say "a" for the empty line,

for small triangle; y^2 = 2^2 + x^2

right triangle; we say a for empty line, a^2= 6^2 + x^2

and big triangle covering both triangles, 8^2 = y^2 + a^2

lets add left sides and right sides in each;

x^2 + 4 + x^2 + 36 + y^2 + a^2 = y^2 + a^2 + 64 and we can delete same things for both sides

y^2 and a^2 can be deleted and 4+36 - 64

2(x^2)=24

x^2= 12

and x will be √12

so, y^2 = x^2 + 2^2 which means y^2 = 12+4 y=16

4 0
3 years ago
X^2+15x+c is a perfect square trinomial, what is c?
Natalija [7]

Answer:

C equals 56.25

Step-by-step explanation: because all we have to do is 225 divided by 4. Hope this helps and can you make me brainliest. :)

3 0
3 years ago
Help plz it’s Liberal Arts mathematics
gregori [183]

For #6, x=-3, add 4 to both sides, divide by 2. #7 is 8, #8 is 3, #9 is 3, #10 is -5.

7 0
3 years ago
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