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Jlenok [28]
3 years ago
12

Y+3 1/2=6 help pleaseee

Mathematics
1 answer:
Verdich [7]3 years ago
8 0
3 1/2 = 7/2
so y+7/2 = 6
y=6-7/2 = 12-7 / 2 = 5/2 = 2 1/2
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Mariulka [41]
The determinant is 45
5 0
3 years ago
It takes 12 hours for a single hose to fill a large vat. When a second hose is added, the vat can be filled in 4 hours. How many
aksik [14]
<h3>Answer:</h3>

6 hours

<h3>Step-by-step explanation:</h3>

The two hoses together take 1/3 the time (4/12 = 1/3), so the two hoses together are equivalent to 3 of the first hose.

That is, the second hose is equivalent to 2 of the first hose. Two of the first hose could fill the vat in half the time one of them can, so 6 hours.

The second hose alone can fill the vat in 6 hours.

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The first hose's rate of doing work is ...

... (1 vat)/(12 hours) = (1/12) vat/hour

If h is the second hose's rate of doing work, then working together their rate is ...

... (1/12 vat/hour) + h = (1/4 vat/hour)

... h = (1/4 - 1/12) vat/hour = (3/12 -1/12) vat/hour = 2/12 vat/hour

... h = 1/6 vat/hour

so will take 6 hours to fill 1 vat.

8 0
3 years ago
If x-9=2y and x+3=5y the what is the value of x
Slav-nsk [51]
For the first 1 X= 11 because all you need to do is add or subtract the numbers visible.
The second would be 2.
3 0
3 years ago
Read 2 more answers
PLEASE HELP!!
beks73 [17]
<span>Let x = the width
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It says,"The length of a rectangle is 4 less than 3 times the width." write that as:
L = 3x - 4
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If the perimeter is 40, find the dimensions of the rectangle.
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We know: 2L + 2W = 40
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Substitute (3x-4) for L and x for W
2(3x-4) + 2x = 40
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6x - 8 + 2x = 40; Multiplied what's inside the brackets
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6x + 2x = 40 + 8; do some basic algebra to find x; (added 8 to both sides)

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8x = 48
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x = 48/8
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x = 6 which is the width
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It said that L = 3x - 4, therefore:
L = 3(6) - 4
L = 18 - 4
L = 14; is the length
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Check our solutions in the perimeter:
2(14) + 2(6) =
28 + 12 = 40</span>
8 0
3 years ago
Read 2 more answers
The ratio of length to width in a rectangle is 3 to 1. If the perimeter of the rectangle is 136 feet, what is the length of the
Goshia [24]
Add the ratios 3:1 = 4
divide perimeter 128 by 4 = 32
multiply this by each ratio so 3:1 becomes 96length:32width
remember there are two lengths and two widths in the perimeter so divide by 2 to find the length = 48
8 0
3 years ago
Read 2 more answers
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