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3 years ago

What could this be???????

Mathematics

2 answers:

Step2247 [10]3 years ago

8 0

Your answer is A it's a pretty simple task that you may just be overthinking

earnstyle [38]3 years ago

5 0

Just replace x by its new value (a+2)
f(x) = (3+x) / (x-3) ==> [3+(a+2) / (a+2) -3] ==> (5+a) / (a-1) . Answer B

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Alice purchased 4 1⁄2 kilograms of olive oil for $27. What is the price per kilogram

Bas_tet [7]

Do 27 divided by 4 1/2 or 4.5. That will be your answer. Let me know if this helps!

5 0

3 years ago

Read 2 more answers

You haft too use elimination to solve this thank you

lakkis [162]

Answer:

x=0, y=-2

Step-by-step explanation:

Because 9y appears twice in both equations, you can subtract the equations to eliminate the y variable so you can solve for x:

-7x + 9y = -18

-(4x + 9y = -18)

__________

-11x = 0

x = 0

Since we know x=0, then we plug it back into one of the equations to get the value of y:

-7x + 9y = -18

-7(0) + 9y = -18

0 + 9y = -18

9y = -18

y = -2

Therefore, x=0, and y=-2

5 0

3 years ago

A tank can be filled by one pump in 3.2 hours and by another pump in 80 minutes. A third pump can drain the tank in 2 hours and

Mademuasel [1]

Answer:

Rounding to the nearest minute, it would take 95 minutes, or 1 hour and 35 minutes.

Step-by-step explanation:

Let's convert each time to minutes:

3.2 hours = 192 minutes

80 minutes = 80 minutes

2 hr 20 min = 140 minutes

Next, let's find the least common multiple:

LCM(192, 80, 140) = 6720

So let's say the volume of the tank is 6720 units. The speed of each pump is therefore:

Pump 1 = 6720 units / 192 minutes = 35 units/minute

Pump 2 = 6720 units / 80 minutes = 84 units/minute

Pump 3 = -6720 units / 140 minutes = -48 units/minute

Their combined speed is:

35 + 84 − 48 = 71 units/minute

So the time to fill the tank is:

6720 units / (71 units/minute) = 94.65 minutes

Rounding to the nearest minute, it would take 95 minutes, or 1 hour and 35 minutes.

6 0

3 years ago

What is the lateral surface area of a cube with side length of 9 cm

Wittaler [7]

S^2 = one face of a cube
S^2 × 6 = entire Surface Area (SA) of cube
One face = 9^2 = 81 cm^2
SA = 81 × 6 = 486 cm^2

3 0

3 years ago

What is the difference in volume, in cubic feet, of the two prism?

Olegator [25]

Answer:

What prisms

Step-by-step explanation:

7 0

3 years ago