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Marina86 [1]
2 years ago
12

The distance between two rivers on a city map is 8. 5 centimeters. The scale on the map states that 3 centimeters represents 6 k

ilometers. What is the actual distance between the two rivers in kilometers? 2. 1 kilometers 4. 25 kilometers 17 kilometers 18 kilometers.
Mathematics
1 answer:
gavmur [86]2 years ago
5 0
♡ The Question ♡
The distance between two rivers on a city map is 8.5 centimeters. The scale on the map states that 3 centimeters represents 6 kilometers.
What is the actual distance between the two rivers in kilometers?
* ୨୧ ┈┈┈┈┈┈┈┈┈┈┈┈ ୨୧*
♡ The Answer ♡
C) 17 kilometers!
*୨୧ ┈┈┈┈┈┈┈┈┈┈┈┈ ୨୧*
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I have 8 pennies and some quarters, nickels, and dimes. The number of pennies plus nickels equals the number of dimes. I have 3
Darina [25.2K]

There are five nickels.

Let <em>w</em> = the number of pennies; <em>x</em> = the number of nickels; <em>y</em> = the number of dimes; <em>z </em>= the number of quarters.

Then, we have three equations with four unknowns:

(1) <em>w</em> + <em>x = y </em>

(2) 3<em>w</em> = 2<em>z</em>

(3) 2<em>y</em> = 3<em>z</em>

However, there is a fourth <em>unstated </em>condition: <em>w</em>, <em>x</em>, y, and <em>z</em> must all be integers.

Assume that z = 6 (to avoid fractions).

From Equation (2), w = 4.

From Equation (3), y = 9.

Insert the values for <em>w</em> and <em>y</em> into equation (1).

4 + <em>x</em> = 9

x = 9 – 4 = 5

Thus, there are 4 pennies, 5 nickels, 9 dimes, and 6 quarters.

<em>Check</em>: 4 pennies + 5 nickels = 9 dimes

6 quarters + 4 pennies = 3 quarters for every 2 pennies

9 dimes + 6 quarters = 3 dimes for every 2 quarters

5 0
3 years ago
Read 2 more answers
A 2-pound box of spaghetti costs $2.50. Philip says that the unit cost is 2 over 250 = $0.80 per pound. Explain his error
7nadin3 [17]
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4 0
3 years ago
Angel paints three rooms with two gallons of paint. How many rooms can he paint with fifteen gallons of paint?​
Vanyuwa [196]

Answer:

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6 0
3 years ago
Vector v is plotted below. What is the length of the x-component of v?
Rzqust [24]
Answer:

C. 1

Step-by-step explanation:

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Therefore the components of vector v is

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Hence the correct answer is C.

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3 years ago
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