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lianna [129]
3 years ago
7

What equation(s) represent joint variations? check all that apply c=2pi z=3x/y y=3x+2 w=abc/4 v=lwh

Mathematics
1 answer:
Alinara [238K]3 years ago
7 0

Answer:

Step-by-step explanation:

Joint variations occurs when one variable depends on the value of two or more variables. The variable varies directly or indirectly with the other variables combined together. The other variables are held constant. From the given examples, the equation(s) that represent joint variations are

1) z = 3x/y

z varies directly with x and inversely with y.

2) w = abc/4

w varies inversely with a,b and c. 4 is the value of the constant of variation.

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shusha [124]

Answer:

11

4

Step-by-step explanation:

3 hrs to travel 45 miles downstream

4 hrs to travel 28 miles upstream

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3 years ago
What is the altitude of a rhombus if its area is 50 square meters and the length on one side is 12.5 meters
SVETLANKA909090 [29]

<u>Answer:</u>

8 meters or 4 meters

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

We know that for finding the area of a rhombus, there are two diagonal sides: one of which is 12.5 meters in length and the other one we'll assume to be y.

Then, we can write:

Area of rhombus = \frac{1}{2} *12.5*y

50=\frac{1}{2} *12.5*y

y=\frac{100}{12.5}

y=8 meters

If the sides of the rhombus are not internally diagonal, then we can simply use the following formula:

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3 0
3 years ago
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Mark has $100,000 to invest. His financial consultant advises him to diversify his investment in three types of bonds: short-ter
galina1969 [7]

Answer:

Short-Term investment: 5000$

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Long-Term investment: 30000$

Step-by-step explanation:

To construct our first equation lets define sort-term bond investment as x, long-term investment as y.

So the equation is:

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From the equation it is found that:

y=25000+x

Instead of y, if we put 25000+x the equation will be as following:

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From the equation it is found that:

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5 0
3 years ago
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olchik [2.2K]
C.35cm
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