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slavikrds [6]
3 years ago
11

Solve for a. 4/a+4 =-1/a+9

Mathematics
1 answer:
Bad White [126]3 years ago
5 0

Answer:

a = -8

Step-by-step explanation:

you can solve this proportion by cross-multiplying:

4(a + 9) = -1(a + 4)

now distribute to eliminate parentheses

4a + 36 = -1a - 4

5a + 36 = -4

5a = -40

a = -8

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zlopas [31]

Step-by-step explanation:

anything greater than 195.

8 0
3 years ago
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What is the slope of a line parallel to the line whose equation is x-6y = 42. Fully reduce your answer.
Maksim231197 [3]
The slop would be 1/6.

you put it into slope intercept form (y=mx+b). parallel lines always have the same slope.
4 0
3 years ago
in priyas math class there are 10 boys and 15 girls. What is the ratio of boys to girls in priyas math class? express your answe
Helen [10]

Answer:

2:3 , you divide by common denominator

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5 0
3 years ago
Is to be constructed for use on padre island beaches. it is to have a back, two square sides, and a top. if 96 square feet of ca
ss7ja [257]
Area of the canvas: 96 = 2 · W² + 2 · W L,
where W is the width and L is the length of a back and a top side. Two square sides have area W².
2 W L = 96 - 2 W² /:2
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L = ( 48 - W² ) / W.
The inside volume of the shelter:
V = L · W · W = L · W²
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We have to find the derivative:
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3 W² = 48
W² = 48 : 3
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8 0
3 years ago
Can someone help me on #7 and #9? It is to find x and y in a parallelogram. Thanks! Will give 12 points.
Mice21 [21]
Number 7
3x-40 = x
3x-x = 40
2x = 40
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v^2 = x+30
v^2= 20+30 = 50
v= radical 50 = 5 radical 2
3 0
3 years ago
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