Answer:
a=2
b=5
Step-by-step explanation:
5a=2b
a=2/5b
2(2/5b) -3b= -11
4/5b-3b =-11
-2.2b=-11
b=5
5a=2*5=10
a=2
Answer:
36
Step-by-step explanation:
There are 30 red marbles and the ratio of black to yellow is 4/5, so 4/5=orange/green=orange/30.
30 is 6 times 5, so black=6 times 4=24. There are 24 black marbles.
Total of black and yellow=24+30=54.
40% of the marbles are green so 60% are black/yellow. Also 60% is 54 marbles.
60% is 60/100=3/5 so 3/5 of the total is 54 marbles, therefore 1/5 is 54/3=18 and 2/5 is the number of red marbles=2 times 18=36 red marbles.
to be honest i can't think of anything original for the visual thing, but i think the pi chart from the person above me would work well
The input that would give an output value of -1/3 is 19
<h3>What is a linear equation?</h3>
A linear equation is an equation that have constant average rates of change. Note that the constant average rates of change can also be regarded as the slope or the gradient
<h3>How to determine the input of the system?</h3>
The table of values that completes the question is added as an attachment
A system of linear equations is a collection of at least two linear equations.
In this case, the linear equation is given as
y = -1/3x + 7
From the complete question, the output value is given as:
y = 2/3
Substitute y = 2/3 in y = -1/3x + 7
2/3 = -1/3 * x + 7
Subtract 7 from both sides of the equation
-1/3 * x = 2/3 - 7
Take the LCM
-1/3 * x = (2 - 7 * 3)/3
Evaluate the product
-1/3 * x = (2 - 21)/3
Evaluate the difference
-1/3 * x = -19/3
Multiply both sides by -3
x = 19
Hence, the input that would give an output value of -1/3 is 19
Read more about linear equations at:
brainly.com/question/14323743
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-8 You just divide because the quotient is the answer to a division problem
Angle 2 and 8 are alternate interior angles. Alternate interior angles are the angles<span> that are formed on opposite sides of the transversal to the two lines and inside the two lines. In this case, t is the transversal to lines m and n. </span>