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rodikova [14]
3 years ago
5

Solve the system of equations: 10x + 7y = 99 and y – x = 2.

Mathematics
1 answer:
svetlana [45]3 years ago
7 0
7y + 10x = 99
y - x = 2
y = 7 , x = 5
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There are 20 cities in the County of Newton. Their populations are shown in the bar chart below. The average population of all t
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The answer is C/85,000

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2 years ago
You wish to take a flight from Nevada to New York. Use the point (-4, 0) to represent Nevada, and the (5, 2) to represent New Yo
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Using proportions, it is found that the ordered pair that represents the location of the layover is given by: (2.75, 1.5).

<h3>What is a proportion?</h3>

A proportion is a fraction of a total amount, and the measures are related using a rule of three.

In this problem, the flight distance is partitioned in a ratio of 3:1, hence:

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2 years ago
If carol travels 4 miles and her car averages 28 miles per hour, how long will it take carol to complete the distance? Express t
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3 years ago
find all integers x satisfying each of the following congruences mod n. if no such x exists, explain why not
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Answer:

please find the solution:

Step-by-step explanation:

please find the correct question:

Given value:  

\to 4x \equiv  2(mod\ n) \ \ \ \ \ \ \ \ \ \ \ \ _{where} \ \  n=6\\\\\to  4x \equiv  2 (mod 6)

\to 4x-2 should be divisible by 6  we are also given that 0 \leq x < n  and start with x = 0  

\to 4x-2 =-2 which is not divisible by 6  

x= 1  

\to 4x-2 = 2 not divisilble by 6  

x= 2

\to 4x-2 = 6 which is divisible by 6  

x=3  

\to 4x-2 = 10 not divisible by 6

x=4  

\to 4x-2  = 14 not divisible by 6  

x=5

\to 4x-2  = 18 which is divisible by 6  

so such x are x = 2 and x = 5

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3 years ago
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