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3 years ago

Use the equation v = h - 6 to find the value of v when h = 9.

Mathematics

2 answers:

KonstantinChe [14]3 years ago

6 0

Answer:

oint variation problems are solved using the equation y = kxz. ... Step 2: Use the information given in the problem to find the value of k, called the ... Example 1 – If y varies jointly as x and z, and y = 12 when x = 9 and z = 3, find z when y = 6 and x = 15. ... In this case, you need to find k when v = 120π, h = 10, and r = 6. Step 2.

Step-by-step explanation:

Marysya12 [62]3 years ago

6 0

V= 9-6
Answer V=3
If you have any questions lmk!

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If you have a 5 letters A,B,C,D,E and you can put them in any order how many ways can you place them

IceJOKER [234]

The first letter can be any one of 5. For each of those . . .
The second letter can be any one of the remaining 4. For each of those . . .
The third letter can be any one of the remaining 3. For each of those . . .
The fourth letter can be any one of the remaining 2. For either of those . . .
The fifth letter is the last remaining one.

Total number of possibilities = (5 x 4 x 3 x 2 x 1) =

 120 ways to line them up.

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4 0

3 years ago

Please help I will mark!!

marin [14]

Answer:788

Step-by-step explanation:

6 0

4 years ago

What is -7x3(4+-5)=

nlexa [21]

$\text{Hey there!}$

$\bf{-7\times(4+(-5))}$

$\bf{First, you\ need\ to\ do \ is\ PEMDAS}\\\\\\\text{Parentheses, Exponents, Multiplication, Division,Addition\ \& Subtraction}$

$\bf{ -7\times3(4+(-5))}\\\bf{-7\times3=-21}\\\bf{-21(4+(-5))}\\\bf{4+(-5)= -1}\\\bf{-21\times-1=21}\\\\\boxed{\boxed{\bf{Answer: 21}}}\checkmark$

$\text{Good luck on your assignment and enjoy your day!}\\\\\\\frak{LoveYourselfFirst:)}$

6 0

3 years ago

A welder requires 18 hours to do a job. After the welder and an apprentice work on a job for 6 hours, the welder moves to anothe

Dafna1 [17]

Answer:

the apprentice can complete the job in 30 hours by working alone.

Step-by-step explanation:

Given:

Number of hours required to complete a job by welder = 18 hours

Number of hours welder work on job = 6 hours.

Number of hours required by apprentice to complete the job = 14 hours

We need to find Number of hours required to complete a job by apprentice alone.

Solution:

Let Number of hours required to complete a job by apprentice alone be 'a'.

Also let the job completed be = 1

Now we know that ;

Time required on job is equal to sum of Number of hours welder work on job and Number of hours required by apprentice to complete the job.

framing in equation form we get

Time required on job = $6+14 =20\ hrs$

Now we can say that;

each has done a fraction of the work so we will add to two fraction as number of hours of work done by Total number of hours required to do the work to complete 1 job.

so we can frame the equation as;

$\frac{6}{18}+\frac{20}{a}=1$