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3 years ago

Need the answer fast

Mathematics

2 answers:

irinina [24]3 years ago

6 0

Answer:

Step-by-step explanation:

hope this helps :)

Westkost [7]3 years ago

5 0

Your answer should be 97 bb

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The graph shows a 1:3 between The number of steps Tammy takes and The distance she walks based on the equivalent ratio shown in

anyanavicka [17]

Answer:

40 steps

Step-by-step explanation:

1:3

x:120

120/3=40

5 0

3 years ago

Can you guys pls help me with this math question

aleksklad [387]

Answer:

Dimensions: 125 m x 250 m

Area: 31,250 m²

Step-by-step explanation:

Given information:

Total amount of fencing = 500m
Only 3 sides of the land need to be fenced

First, let us assume that the land is rectangular in shape.

Let $y$ = length of the side opposite the river

Let $x$ = length of the other 2 sides of the land

Therefore, we can create two equations from the given information:

Area of land: $A= xy$

Perimeter of fence: $2x + y = 500$

Rearrange the equation for the perimeter of the fence to make y the subject:

$\begin{aligned} \implies 2x + y & = 500\\ y & = 500-2x \end{aligned}$

Substitute this into the equation for Area:

$\begin{aligned}\implies A & = xy\\& = x(500-2x)\\& = 500x-2x^2 \end{aligned}$

To find the value of x that will make the area a maximum, differentiate A with respect to x:

$\begin{aligned}A & =500x-2x^2\\\implies \dfrac{dA}{dx}& =500-4x\end{aligned}$

Set it to zero and solve for x:

$\begin{aligned}\dfrac{dA}{dx} & =0\\ \implies 500-4x & =0 \\ x & = 125 \end{aligned}$

Substitute the found value of x into the original equation for the perimeter and solve for y:

$\begin{aligned}2x + y & = 500\\\implies 2(125)+y & = 500\\250+y & = 500\\y & = 250\end{aligned}$

Therefore, the dimensions that will give Christine the maximum area are:

125 m x 250 m (where 250 m is the side opposite the river)

The maximum area is:

$\begin{aligned}\implies \sf Area_{max} & = xy\\& = 125 \cdot 250\\& = 31250\: \sf m^2 \end{aligned}$

6 0

2 years ago

A bank account earns interest at a rate of 3.5% per year (in other words it increases in value by that percent) and starts with

Oduvanchick [21]

Answer:

Annually cumulating interest can be determined by the following formula:

W=P(1+r)^y

r represents the interest rate as a decimal, and P represents the starting amount of money.

Step-by-step explanation:

7 0

3 years ago

What is the quotient ? -4/2 divided by 2

professor190 [17]

Answer:

$\frac{-\frac{4}{2} }{2} =-\frac{4}{2} *\frac{1}{2} =-\frac{4}{4} =-1$

6 0

3 years ago

How to solve? im doing piecewise functions

Novosadov [1.4K]

$g(x) = \begin{cases} -x + 4 & \text{if } x \le -1 \\ 3 & \text{if } -1$

then by this definition,

g(0) = 3 … … … (since -1 < 0 < 2)

and

g(1) = 3 … … … (also because -1 < 1 < 2)

7 0

3 years ago