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4 years ago

7

What is 3/5 x +1.4y=2/5

1 answer:

Juliette [100K]4 years ago

3 0

Your question is somewhat ambiguous.
If you want to solve this equation for y in terms of x, first multiply all of its terms by the LCD (which is 5), to remove the fractions.

5(3/5)x + 5(1.4y) = 5(2/5)
Then 3x + 7y = 2 This is the equation of the line in "standard form."

Next, subtract 3x from both sides: 7y = -3x + 2
Dividing by 7, y = (-3/7)x + (2/7)

This is the slope-intercept form of the given equation. It has a slope of -3/7 and a y-intercept of (0, 2/7).

The point-slope form of the same equation is

y- 2/7 = (-3/7)(x - 0), or -3x/7. y - 2/7 = (-3/7)x

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Subtract 1/6a+3 from 1/3a−5 .

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4 years ago

I NEED HELP, I'VE BEEN STUCK ON THIS...Find the volume of this triangular prism. Enter only the numerical part of your answer in

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[see below]

Step-by-step explanation:

Volume of a triangular prism is: $V=\frac{1}{2}bhl$

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3 years ago

Read 2 more answers

A circle centered at the origin passes through the point (3, 5). What is the area of the circle to the nearest tenth of a square

Mandarinka [93]

Answer:

A = π(34), or approx. 106.8 units²

Step-by-step explanation:

Recall that the formula for the area of a circle is A = πr².

If (3, 5) is a point on the circle at hand, then the radius (found using the Pythagorean Theorem) is r = √(3² + 5²) = √(9 + 25) = √34.

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4 years ago

Karrine hit 4 more home runs than half the number of home runs Lu hit. Together they hit 10 home runs. Let x represent the numbe

Andreas93 [3]

Answer:

The number of home runs that Lu hit is 4 and the number of home runs that Karrine hit is 6

Step-by-step explanation:

Let

x ----> represent the number of home runs Lu hit

y ---> represent the number of home runs Karrine hit

we know that

Together they hit 10 home runs

so

$x+y=10$ ----> equation A

Karrine hit 4 more home runs than half the number of home runs Lu hit

so

$y=\frac{1}{2}x+4$ ---> equation B

substitute equation B in equation A

$x+\frac{1}{2}x+4=10$

solve for x

$\frac{3}{2}x=10-4$

$\frac{3}{2}x=6\\x=4$

Find the value of y

$y=\frac{1}{2}(4)+4=6$

therefore

The number of home runs that Lu hit is 4 and the number of home runs that Karrine hit is 6

5 0

3 years ago