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3 years ago

If the simple interest on $1000 for 7 years is $560, then what is the interest rate

Mathematics

1 answer:

levacccp [35]3 years ago

4 0

Answer:

Step-by-step explanation:

560 interest/7 years=80 interest per year

1000xinterest rate=80

interest rate = 80/1000

Interest rate is 8%

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The diameter of a tractor tire is 5 feet. Rounded to the nearest hundredth, how far will the tractor move when the wheel rotates

almond37 [142]

It will move a distance equal to the circumference of the wheel which is:

c=πd in this case d=5ft so

c=5π ft

c≈15.71 ft (to nearest one hundredth of a foot)

8 0

3 years ago

Read 2 more answers

O carro da Vivi faz 500 km com um tanque de capacidade igual a 40 litros de combustível. Considerando esse consumo, quanto Vivi

Oliga [24]

Here we have an algebraic problem. We will find that the cost of the gas is R$16.26

Here we know that a car can travel 500km with 40L of gas.

Then we want to know how much costs to travel 36km (18 km two times), if each L of gas costs R$ 5,30.

First, we need to find how much the car can travel with 1L of gas.

To see this, we take the quotient between the distance we know it can travel with 40L of gas, we get:

500km/40L = 12.5 km/L

Now we know that the car travels 12.5 km per liter of gas.

Now let's define a variable X, which is the amount of gas that the car needs to travel 36km, we can write:

(12.5km/L)*X = 36km

Now we solve this for X:

X = (36km)/(12.5km/L) = 2.88 L

And we know that each liter costs R$ 5,30, then the cost of 2.88L is:

2.88*R$ 5,30 = R$16.26

She spends R$16.26 on gas.

If you want to learn more, you can read:

brainly.com/question/24519906

5 0

3 years ago

In order to graph a line your equation must be set equal to y. If I gave you the following equation would you be able to graph i

aliina [53]

Answer:

Step-by-step explanation:

Graphing the equation in the form it is given is eventually hard so we always rewrite the equation in the form of y. Lets rewrite the equation in the form of y.

$-6x+12y=9\\12y=6x+9\\\\y=\frac{6x+9}{12} \\\\y=\frac{6x}{12}+\frac{9}{12} \\\\y=\frac{1}{2}x+\frac{3}{4}$

now if we compare it to our slope-intercept form which is

$y=mx+b$

m is the slope which is 1/2 which tells us that if the slope is positive the graph is a positive slope means that two variables are positively related that is, when x increases so does y, and when x decreases y also decreases. Graphically, a positive slope means that as a line on the line graph moves from left to right, the line rises, and b is the y-intercept which is 3/4.

Intercept means where the line intersects the specific axis. In this case b is y-intercept which is 3/4 which means the line intersects the y-axis at 3/4

so we have our first point (0 , 3/4)

now in order to graph the line we need one more point that is the x-intercept which means where the line would intersect the x-axis the coordinate would be (x , 0) so lets insert this coordinate into our equation that we rewrote above.

$y=\frac{1}{2}x+\frac{3}{4} \\\\0=\frac{1}{2}x+ \frac{3}{4}\\\\-\frac{3}{4}=\frac{1}{2} x\\\\-6=4x\\\\\frac{-6}{4}=x \\\\x=\frac{-3}{2}$

so our x-intercept is (-3/2 , 0)

Below I have attached the graph file you check it out for better understanding

8 0

3 years ago

What is the area of the circle shown below? Please<br> answer quickly! 20 points

Nataliya [291]

Answer:

A =1017.9 cm^2

Step-by-step explanation:

The area of a circle is given by

A = pi r^2

A = pi * (18)^2

Using the pi button

A =1017.87602 cm^2

Rounding to 1 decimal place

A =1017.9 cm^2

3 0

3 years ago

Which equation could be used to solve this problem?

timama [110]

The correct answer is B

8 0

3 years ago

If the simple interest on ​$1000 for 7 years is ​$560​, then what is the interest​ rate

If the simple interest on $1000 for 7 years is $560, then what is the interest rate