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pashok25 [27]
4 years ago
11

leandra has 40 coins that total 7.15 all of her coins are dimes,d, and quarters,q, which system of equations models this situati

on?
Mathematics
1 answer:
navik [9.2K]4 years ago
3 0

Answer:

40 = d+q

7.15=0.10d+0.25q

there are 19 dimes and 21 quarters.

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A market sells blueberries for $3 per pint. The first day, the market sold a total of $35 worth of blueberries. The second day,
Eddi Din [679]

Answer:Around 50 pints

Step-by-step explanation:

$35=$40

$47=$50

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$40+$50+$60=$150/3=50

6 0
3 years ago
Simplify this expression.
amm1812

Answer: 0.88

Step-by-step explanation:

Okay -5.37 + 8.14 = 2.77 ( you can simply plug this into the calculator or you could switch the problem around so it’s 8.14 - 5.37, either way you’ll get 2.77)

And then you take 2.77 -1.89 = 0.88

So 0.88 is your answer

7 0
3 years ago
,please help me solve these 2. problems I am having trouble
Harlamova29_29 [7]
Hi,

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4 0
3 years ago
Solve the question below, please.
Ne4ueva [31]

Answer:

Adam: 52.26°

Step-by-step explanation:

Use Cosine Rule, Cos(C) = \frac{a^2 + b^2 - c^2}{2ab}, to find the angle of both players.

✔️Angle of Carlos:

Let the angle be C,

a = 50 ft

b = 40 ft

c = 24 ft

Plug in the values into the equation

Cos(C) = \frac{50^2 + 40^2 - 24^2}{2*50*40}

Cos(C) = \frac{3,524}{4,000}

C = Cos^{-1}(\frac{3,524}{4,000})

C = 28.24° (nearest hundredth)

✔️Angle of Adam:

Let the angle be C,

a = 30 ft

b = 22 ft

c = 24 ft

Plug in the values into the equation

Cos(C) = \frac{30^2 + 22^2 - 24^2}{2*30*22}

Cos(C) = \frac{808}{1,320}

C = Cos^{-1}(\frac{808}{1,320)}

C = 52.26° (nearest hundredth)

6 0
3 years ago
What is the part and whole of 40% of 20?
pashok25 [27]
The answer is 8

I hope this helps!
5 0
3 years ago
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