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3 years ago

Sum or difference in simplest form 5/12 -1/4 =

Mathematics

2 answers:

Darina [25.2K]3 years ago

6 0

The right answer is 2/9

Svet_ta [14]3 years ago

4 0

1/6 is the right answer

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Please... time is almost up somebody?

Leya [2.2K]

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3 years ago

Maribelle uses x yards of material to make a quilt. A customer requests 6 quilts that are 50% larger than the normal pattern. Wr

masya89 [10]

6(0.05x)=y
i think this is correct

5 0

3 years ago

John has a boat that will travel at the rate of 15 kph in still water. He can go upstream for 35 km in the same time it takes to

Otrada [13]

Answer:

The boat traveling at 24 kph when John goes downstream.

Step-by-step explanation:

We are given the following in the question:

John has a boat that will travel at the rate of 15 kph in still water.

Let x be the speed of the current.

Speed of boat in upstream

$(15-x)\text{ kph}$

Speed of water in downstream

$(15+x)\text{ kph}$

Relation:

$\text{Speed} = \dfrac{\text{Distance}}{\text{Time}}$

We have to find the speed of boat in downstream.

Time to travel upstream for 35 km = Time to travel 140 km downstream

$\displaystyle\frac{35}{15-x}=\frac{140}{15+x}\\\\35(15+x) = 140(15-x)\\525 + 35x = 2100 - 140x\\175x = 1575\\x = 9$

Thus, speed of current is 9 kph.

Speed of boat in downstream = 15 + 9 = 24 kph.

Thus, the boat traveling at 24 kph when John goes downstream.

4 0

3 years ago

Please look at the picture. I answered b but it was incorrect. <br> Please help.

LuckyWell [14K]

9514 1404 393

Answer:

d. 14 -3x

Step-by-step explanation:

If you want to substitute for y in the second equation, you must use the first equation to find an expression for y.

3x +y = 14 . . . . . . first equation

y = 14 -3x . . . . . . subtract 3x from both sides

This gives you the expression for y that you want to use for substitution. It matches the expression of choice D.

y = 14 -3x . . . . matches D

6 0

3 years ago

Is there a formula for problems like these? How do I even begin to solve it?

Pachacha [2.7K]

Well, they're saying 9 with an exponet of 2 multiplied by something equals 27..... Hmmm.....

5 0

3 years ago