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2 years ago

13

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1 answer:

katovenus [111]2 years ago

5 0

Let me know if you need help with anything thanks

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58 is 20% of<br>having trouble

ella [17]

First, let's introduce a variable:

Let n represent the number we are trying to find.

20 % x n = 58
0.20 x n = 58
0.20n = 58
n = 290

Therefore, 58 is 20% of 290.

Hope this helps!
Message me if you have any questions. :)

6 0

2 years ago

Which ordered pair is located in Quadrant 11?

nika2105 [10]

Answer:

(-1.2, 5)

Step-by-step explanation:

(-1.2, 5) is in Quadrant II. Here x = -1.2 (which lies to the left of the y-axis) and 5 lies above the x-axis.

6 0

3 years ago

Read 2 more answers

The cost of internet access at a café is a function of time. The costs for 8, 25, and 40 minutes are shown. Write an equation in

PolarNik [594]

Answer:

$y=0.17x+3$
The cost of surfing the web at the café for one hour: $\$13.2$

Step-by-step explanation:

The equation of the line in Slope-Intercept form is:

$y=mx+b$

Where "m" is the slope and "b" is the y-intercept.

Take two points and substitute them into the formula for calculate the slope (The formula is $m=\frac{y_2-y_1}{x_2-x_1}$ ).

Having these points:

$(8,4.36)$ and $(40,9.80)$

You can identify that:

$y_2=4.36\\y_1=9.80\\\\x_2=40\\x_1=8$

Then, the slope is:

$m=\frac{4.36-9.80}{40-8}=0.17$

Substitute the slope and the coordinates of any point on the line into the equation $y=mx+b$ and then solve for "b":

$4.36=0.17(8)+b\\\\4.36-1.36=b\\\\b=3$

Therefore, equation in Slope-Intercept form that represents the function is:

$y=0.17x+3$

Since 1 hour hour has 60 minutes, you need to substitute $x=60$ into the equation and then evaluate, in order to find the cost of surfing the web at the café for one hour. Then:

$y=0.17(60)+3\\\\y=13.2$

6 0

2 years ago

The figure shown is made up of triangle ABF and rectangle BCDE. The area of the figure is 90 square feet. If AB=BC=BF=FE, find A

Ludmilka [50]

The complete question in the attached figure

let
x-----> distance AB
so
AC=2x

we know that
area of the figure=area of triangle+area of rectangle
area of the figure=90 ft²

step 1
find the area of triangle
$A=b*h/2$
b=x
h=x
so
$A=(x*x)/2$
Area of triangle=x²/2 ft²

step 2
find the area of rectangle
$A=b*h$
b=2x
h=x
$A=(2x)*x------\ \textgreater \ A=2x^{2}$
area rectangle=2x²

step 3
find value of x
area of the figure=(x²/2)+2x²
area of the figure=90 ft²
90=(x²/2)+2x²-----> multiply by 2 both sides----> 180=x²+4x²
5x²=180-----> x²=36-----> x=6 ft

AC=2x-----> AC=2*6----> AC=12 ft

the answer is
AC=12 ft

6 0

2 years ago

Rudik [331]

Its is B my friend. ^.^

7 0

2 years ago

Read 2 more answers