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svetoff [14.1K]
3 years ago
13

PLEASE HELP!! REALLY URGENT!!

Mathematics
2 answers:
MatroZZZ [7]3 years ago
5 0

Answer:

it's the first option

Step-by-step explanation:

worty [1.4K]3 years ago
4 0
A...………….......... k
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An important function of the judicial branch is?
Zolol [24]

Answer:

The judicial branch is important because it complements the other two branches. The executive branch defends the country and enforces the law, the legislative passes, amends and repeals laws, and the judicial branch interprets the law and passes punishment.

hope this helps :)

5 0
3 years ago
Amy has four more 20c coins than 5c coins. The total value of all her 20c and 5c is $3.80. How many 5c coins does Amy have?
skelet666 [1.2K]

Answer:

Amy has 12 5¢ coins

Step-by-step explanation:

Let <em>x</em> represent 20¢ coins and <em>y</em> represent 5¢ coins.

Amy has four more 20¢ coins than 5¢ coins. Hence:

x=y+4

And the total value of all her coins is $3.80. Thus:

0.2x+0.05y=3.8

This yields a system of equations:

\displaystyle \begin{cases} x=y+4 \\ 0.2x+0.05y=3.8\end{cases}

We can solve by substitution. Substitute the first equation into the first:

\displaystyle 0.2(y+4)+0.05y=3.8

Distribute:

\displaystyle 0.2y+0.8+0.05y=3.8

Combine like terms:

\displaystyle 0.25y = 3

And divide both sides by 0.25. Hence:

y=12

Thus, Amy has 12 5¢ coins.

Using the first equation:

x=y+4

Substitute:

x=(12)+4=16

Thus, Amy has 16 20¢ coins.

In conclusion, Amy has 12 5¢ coins and 16 20¢ coins.

6 0
3 years ago
What is unit rates and how do you solve them
ratelena [41]

Answer:

Unit rates are ratios that are used to compare different quantities

Step-by-step explanation:

It really depends on what kind of unit rate you're answering. So let's say that you go to the grocery store, and potatoes are $5.50 for 5. You would divide 5.50 by 5 to get the answer $1.10. Hope this helps!

8 0
4 years ago
The sine ratio is formed by the side opposite the acute angle over the _____.
diamong [38]
The since ratio is formed by the side opposite the acute angle over the hypotenuse. 
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4 years ago
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Solve using the elimination method! 2x + 8y = 4 x - 5y = 11
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Answer: The answer is {(0,0)} !

Step-by-step explanation:

4 0
3 years ago
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