3 years ago

What is Y if X-2Y = Z?

Mathematics

1 answer:

kakasveta [241]3 years ago

8 0

Answer:(2) y = 2

Step-by-step explanation:

If x + 2y = z, what is the value of x? 3y = 4.5 + 1.5z y = 2

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What is 9 kilometers per hour converted into feet per minute?

gogolik [260]

The answer is 492.126 :) Hope it helps!

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3 years ago

A toy train has 8 compartments and an engine that is 8 inches long. Each compartment is 4 inches long. Each compartment is joine

luda_lava [24]

Answer:

64in

Step-by-step explanation:

links=8*3=24

compartments + engine=4*8+8=40

40+24=64

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2 years ago

A rectangle initially has width 7 meters and length 10 meters and is expanding so that the area increases at a rate of 8 square

Tems11 [23]

Answer:

The length of rectangular is increasing at a rate 0.5714 meters per hour.

Step-by-step explanation:

We are given the following in the question:

Initial dimensions of rectangular box:

Length,l = 10 m

Width,w = 7 m

$\dfrac{dA}{dt} = 8\text{ square meters per hour}\\\\\dfrac{dw}{dt} = 40\text{ centimeters per hour} =0.4\text{ meters per hour}$

We have to find the rate of increase of length.

Area of rectangle =

$A = l\times w$

Differentiating we get,

$\displaystyle\frac{dA}{dt} = \frac{dl}{dt}w + \frac{dw}{dt}l$

Putting values, we get,

$8 = \dfrac{dl}{dt}(7) + (0.4)(10)\\\\\dfrac{dl}{dt}(7) = 8 -4\\\\\dfrac{dl}{dt} \approx 0.5714$

Thus, the length of rectangular is increasing at a rate 0.5714 meters per hour.

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3 years ago

(2x - 3y + 1) + (4x + y + 5)=

disa [49]

6x-2y+5. Here you just do addition/subtraction with the coefficients on the variables.

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3 years ago

Remainder of 8529 divided by 42

Svetradugi [14.3K]

$8529\div 42=203 r3$

The remainder is 3.

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3 years ago