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mafiozo [28]
3 years ago
6

Solving literal equations. Ax+by=c

Mathematics
1 answer:
Studentka2010 [4]3 years ago
6 0
What are you asking? what do they want you to solve for? which variable?
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Lester’s car can go 15.4 miles on 1 gallon of gas. How far can he go on 0.7 gallon?
MAVERICK [17]

Answer:

He can go 10.78 miles

Step-by-step explanation:

This problem can be solve by creating a proportion, knowing that 15.4 miles is to one gallon the same as "x" miles (our unknown) is to 0.7 gallons. This can be set in math terms as the equation that relates these two ratios of miles per gallon:

\frac{15.4\,miles}{1\,gallon} =\frac{x }{0.7\,gallon}

and to solve for the unknown number of mile, we multiply both sides of the equation by "0.7 gallon" in order to isolate our unknown:

\frac{15.4\,miles}{1\,gallon} =\frac{x}{0.7\,gallon}\\\frac{15.4\,miles\,*\,0.7\,gallon}{1\,gallon} =x \\x=10.78\,miles

7 0
3 years ago
Find the value of x to make the following expression true.<br> 3x=729
ohaa [14]
The value of x is 243
(correct me if wrong)
6 0
3 years ago
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What is the simplest radical form of the expression?
Anna35 [415]

Answer:

x^2y^2 3y^2

Step-by-step explanation:

its a or the first choice

6 0
3 years ago
What is the slope of the line represented y= 5x -7​
Wittaler [7]

The slope is 5. This is because the coefficient of x is the slope of a line.

7 0
3 years ago
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ABCD is a isosceles trapezoid with AB=10, DB=8 and angle A=120 degrees what is the length of CD
spin [16.1K]

Answer:

The answer is 10.6 (I'm sorry if it's wrong)

Step-by-step explanation:

found out what D and B is (they both are 4 I think) then add 10 with 8 then divide 120 with 18 which is 6.6 then add what D is and then I got 10.6

5 0
3 years ago
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