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mash [69]
2 years ago
8

This using the substitution method

Mathematics
1 answer:
Gnesinka [82]2 years ago
8 0
4x + 3y = 26
x = 3/2y + 2

solving for y:

4 (3/2y + 2) + 3y = 26
6y + 8 + 3y = 26
9y + 8 =26
9y = 18
y = 2

solving for x:
x = 3/2(2) + 2
x = 3 + 2
x = 5

done.
**optional: use second equation to check
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what fraction is equivalent to -3/2? i’m going to keep writing because it has to be 20 words. Anyways thank you if you answer th
Alinara [238K]
A fraction that is equivalent to -3/2 would be -9/6

A great form to prove this is by using a calculator and dividing -9 by 6 this should get you the answer of 1.5!

Hope this helps!
7 0
2 years ago
at maximum speed , an airplane travels 1680 miles against the wind in 5 hours flying with the wind , the plane can travel the sa
Westkost [7]
X = velocity of plane
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x - y = 1680/5 = 336 mph .....(1) [ plane flying against the wind]
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3 0
3 years ago
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aalyn [17]

Answer:

80.5%

Step-by-step explanation:

Because 17/22 converted to a percent is 72% and 56 is not right so 80.5% must be the right choice.

5 0
3 years ago
What is the slope and the y-intercept of the graph of the linear function shown on the grid ?
VladimirAG [237]

Answer:

Slope: -1/4; Y-Intercept: 1.5

Step-by-step explanation:

Step 1: Find the slope. The best way to do this is to transform the two given points to y=mx+b form. When given two points, the best way to find the slope will be to do y2-y1/x2-x1. In this equation it would be -2-0/2+6, which is -2/8, simplified is -0.25 or -1/4. So we have the slope, which can determine the length of the line.

Step 2: Find the Y-Intercept. Finding the Y-intercept is so much simpler when given a graph, since all you have to do is find where the line goes through the y-axis, which in this case is (0,1.5), meaning that the y-intercept is 1.5 <em>(note: the y-intercept can also be found when x=0, for example (0,9).</em>

Hope this helped, good luck!

5 0
3 years ago
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If 14 songs were 9.38 dollars how much would one be
zheka24 [161]

Answer:

each song would be 67 cents (0.67)

Step-by-step explanation:

9.38/14=0.67

5 0
2 years ago
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