3 years ago

How to solve the system of 4x+2y-5z=47

Mathematics

2 answers:

MrRa [10]3 years ago

6 0

The answer is x=47/4-y/2+5z/4

sergij07 [2.7K]3 years ago

3 0

Are you looking for x,y, or z

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HELPPP!!!! Will mark BRAINLIEST!!!!

Svetach [21]

Answer:

Step-by-step explanation:

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8 0

2 years ago

Identify the initial amount a and the growth factor b in the exponential function

Olenka [21]

F(t)=1.4^t
a)a=1, b=0.4 
b)a=1.4, b=0<<<< 
c)a=1.4, b=t 
d)a=1, b=1.4
Hope this helped!!

7 0

3 years ago

Wes has a piece of land with side lengths of 36.2 m, 41.6 m, 39.4 m, and 31.2 m. He also has 150 m of tape to mark the boundarie

Lesechka [4]

Add up all of the side lengths and you get 148.4 as the perimeter.

subtract that from 150 and you're left with 1.6 m left of tape

3 0

3 years ago

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3x+5y = 15 find the slope of a line perpendicular to each given line

gladu [14]

Answer:

Slope = 5/3

Step-by-step explanation:

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5 0

1 year ago

Assume that a company sold 5.75 million motorcycles and 3.5 million cars in the year 2010. The growth in the sale of motorcycles

OverLord2011 [107]

Answer:

Final answer is approx 6.644 years.

Step-by-step explanation:

Given that a company sold 5.75 million motorcycles and 3.5 million cars in the year 2010. The growth in the sale of motorcycles is 16% every year and that of cars is 25% every year.

So we can use growth formula:

$A=P\left(1+r\right)^t$

Then we get equation for motorcycles and cars as:

$A=5.75\left(1+0.16\right)^t$

$A=3.5\left(1+0.25\right)^t$

Now we need to find about when the sale of cars will be more than the sale of motorcycles. So we get:

$3.5\left(1+0.25\right)^t>5.75\left(1+0.16\right)^t$

$3.5\left(1.25\right)^t>5.75\left(1.16\right)^t$

$\frac{\left(1.25\right)^t}{\left(1.16\right)^t}>\frac{5.75}{3.5}$

$\left(\frac{1.25}{1.16}\right)^t>1.64285714286$

$t\cdot\ln\left(\frac{1.25}{1.16}\right)>\ln\left(1.64285714286\right)$

$t>\frac{\ln\left(1.64285714286\right)}{\ln\left(\frac{1.25}{1.16}\right)}$

$t>6.6436473051$

Hence final answer is approx 6.644 years.

7 0

2 years ago