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prohojiy [21]
3 years ago
11

Which of the following could be a measurement on a scale drawing that has a scale of 2:5? 2 in.:5 ft

Mathematics
1 answer:
12345 [234]3 years ago
6 0
It's the1st: 4 cm/10 cm because:
4/10 = 2/5 .  and because they have the SAME UNIT (cm)
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Tammy has 35 coins nickels and quarters. In all she has $4.15. How many of each kind of coin does she have
sergey [27]

The currency called the U.S dollar can be split into smaller forms or currency value of itself. Examples of these smaller forms are: <u><em>dimes, nickels, pennies, and quarters.</em></u>

Tammy has 23 nickels and 12 quarters.

Let's represent the number of:

Nickels = n

Quarters = q

It is important to note that the value of:

<em>1 nickel = $0.05</em>

<em>1 quarter = $0.25</em>

<em />

Tammy has 35 coins nickels and quarters. This statement can be represented using an algebraic equation below:

n + q = 35

This can be rewritten as :

n = 35 - q

In all, she has $4.15. This statement can be represented using an algebraic equation below:

0.05n + 0.25q = 4.15

We substitute 35 - q for n in the above equation.

0.05(35 - q) + 0.25q = 4.15

1.75 - 0.05q + 0.25q = 4.15

Collect like terms

- 0.05q + 0.25q = 4.15 - 1.75

0.2q = 2.4

Divide both sides by 0.2

0.2q/0.2 = 2.4/0.2

q = 12

Therefore, the number of quarters Tammy has is 12.

Solving for the number of nickels, we have the equation:

n = 35 - q

n = 35 - 12

n = 23

Therefore, the number of nickels Tammy has is 23.

To learn more, visit the link below:

brainly.com/question/13312288

8 0
3 years ago
How does the solution to an inequality differ from the solution to an equation?
vampirchik [111]
An equation is a mathematical statement that shows the equal value of two expressions while an inequality is a mathematical statement that shows that an expression is lesser than or more than the other.

6 0
3 years ago
Solve for x.
Trava [24]

Answer:

You said what now?

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Given v=(6,3) and w=(1,-2), what is the result of v-w
Daniel [21]
Here, v - w would be (6-1, 3-[-2]), or (5, 5).  
I don't believe you need the word "result" here.  At first I thought you'd meant "resultant."  Here you're finding the "difference" v less w.



3 0
3 years ago
Simplify by using order of operation 20 - (4.2)÷(5-3)-2
beks73 [17]

Answer:

The answer is 14

Step-by-step explanation:

20- 8: 2- 2 = 20- 4- 2 = 14

5 0
3 years ago
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