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vitfil [10]
3 years ago
6

If 20 articles cost $90,then the cost of 9 articles is

Mathematics
1 answer:
Tom [10]3 years ago
8 0

Answer:

$40.50

Step-by-step explanation:

90 divided by 20 is 4.5. then you multiply that times 9 and that's your answer.  

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AleksandrR [38]

Answer:

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Step-by-step explanation:

5 0
3 years ago
From base camp, a hiker walks 3.5 miles west and 1.5 miles north. Another hiker walks 2 miles east and 0.5 miles south. To the n
levacccp [35]

Answer:

The hikers are 5.9 miles apart.

Step-by-step explanation:

Let O represents the base camp,

Suppose after walking 3.5 miles west, first hiker's position is A, then after going 1.5 miles north from A his final position is B,

Similarly, after walking 2 miles east, second hiker's position is C then going towards 0.5 miles south his final position is D.

By making the diagram of this situation,

Let D' is the point in the line AB,

Such that, AD' = CD

In triangle BD'D,

BD' = AB + AD' = 1.5 + 0.5 = 2 miles,

DD' = AC = AO + OC = 3.5 + 2 = 5.5 miles,

By Pythagoras theorem,

BD^2 = BD'^2 + DD'^2

BD = \sqrt{2^2 + 5.5^2}=\sqrt{4+30.25}=\sqrt{34.25}\approx 5.9

Hence, the hikers are 5.9 miles apart.

8 0
3 years ago
Table and graph for y=40x
Marina CMI [18]
Slope =40
Y-intercept =0
7 0
3 years ago
1. On Tuesday, 12 Kittens at the shelter were adopted and 4 dogs also found new homes. What percentage of the newly adopted pets
aleksley [76]
1.  25% of the new dogs found new home

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5 0
3 years ago
Jim’s dog weighs 18 pounds 10 ounces. His cat weighs 6 pounds 3 ounces. How many more ounces does Jim’s dog weigh than his cat?
JulijaS [17]
The dog weighs 99 ounces more than the cat. you just have to convert to ounces then subtract.

5 0
3 years ago
Read 2 more answers
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