All categories

3 years ago

Solve.

Mathematics

1 answer:

Grace [21]3 years ago

8 0

Answer:

Total bikes and cars are 260

Step-by-step explanation:

Cars: $n_{cars}185$

Bikes: $n_{bikes}=n_{cars}-113=72$

Total: $n_{total}=n_{bikes}+n_{cars}=257$

Rounding to the nearest ten: 260

You might be interested in

Juan earns $625 per week. He is married and claims 3 withholding allowances. He pays $90 each

atroni [7]

Answer:

what is this

Step-by-step explanation:

7 0

2 years ago

constitutional amendment that has significantly changed the structure of congress as written in the original constitution

dezoksy [38]

This isn’t the correct way because

5 0

2 years ago

On a number line, a number, b, is located the same distance from 0 as another number, a, but in the opposite direction. The numb

liberstina [14]

This is a very long question br0(3b)Y=

5 0

1 year ago

Let’s pretend that we want to give our employees in total a28% raise in the next two years, but we want to spread out aconsisten

Roman55 [17]

Solution

- The solution steps are given below:

$\begin{gathered} \text{ Let the original amount be X} \\ \\ \text{ If we want a 28\% raise over the next two years, then it means that the amount will be:} \\ X+\frac{28}{100}X=1.28X \\ \\ \text{ If we want to give them a consistent raise each year, we can compute the scenario as follows:} \\ \text{ Let the percentage be }y \\ \\ X+y\%\text{ of }X=\text{ Salary after first year} \\ \\ (X+y\%\text{ of }X)+y\%\text{ of }(X+y\%\text{ of }X)\text{ = Salary after second year.} \\ \\ \text{ But we already know that the salary after second year is }1.28X \\ \text{ Thus, we can say:} \\ (X+y\%\text{ of }X)+y\%\text{ of }(X+y\%\text{ of }X)=1.28X \\ \\ \text{ Simplifying, we have:} \\ X+\frac{yX}{100}+\frac{y}{100}(X+\frac{yX}{100})=1.28X \\ \\ \text{ Divide through by }X \\ 1+\frac{y}{100}+\frac{y}{100}(1+\frac{y}{100})=1.28 \\ \\ \text{ Subtract 1 from both sides and expand the brackets} \\ \frac{y}{100}+\frac{y}{100}+(\frac{y}{100})^2=1.28-1=0.28 \\ \\ \frac{2y}{100}+(\frac{y}{100})^2=0.28 \\ \\ \text{ Multiply both sides by }100^2 \\ 200y+y^2=2800 \\ \\ \text{ Rewrite, we have:} \\ y^2+200y-2800=0 \\ \\ Solving\text{ the equation using the Quadratic formula, we have that:} \\ y=\frac{-200\pm\sqrt{200^2-4(-2800)}(1)}{2(1)} \\ \\ y=-213.137\text{ or }13.137 \\ \\ \text{ Since the change in salary is an increase, thus, the rate }y\text{ has to be positive.} \\ \text{ Thus, } \\ y=13.137\approx13.14\% \\ \\ \end{gathered}$

Final Answer

y = 13.14%

The screenshots of the solution are:

5 0

10 months ago

if it took 1.5 qt of pant to paint the wall 24ft and 10ft. How much qt will be needed to paint the wall 15ft and 8ft?

Inga [223]

Answer:

3/4 or .75 qt to paint the 15ft and 8ft wall

Step-by-step explanation:

7 0

2 years ago