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WINSTONCH [101]
3 years ago
14

A local road has a grade of 5%. The grade of a road is its slope expressed as a percent. Find the slope of the road as a fractio

n, and then simplify.
Mathematics
1 answer:
Firlakuza [10]3 years ago
5 0

Answer:

The slope of the road as a fraction is \frac{1}{20}

Step-by-step explanation:

we know that

The slope expressed as a percent is equal to 5\%

Convert the slope as a fraction

Remember that

5\%=\frac{5}{100}

Simplify

Divide by 5 both numerator and denominator

\frac{5}{100}=\frac{1}{20}

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Which ordered pair represents the y-intercept of the graph of the equation y = - 4 x - 7 ?​
Degger [83]

Answer:

(0, -7)

Step-by-step explanation:

Since -4x is the slope, then -7 is the y-intercept.

For finding y intercept we substitute x=0

y = -7

The ordered pair would be

(0,-7)

hope this helps and is right. p.s. i really need brainliest :)

4 0
3 years ago
Equation with angles can someone help me please
Bas_tet [7]

Answer:

x = 33/3 = 11

Step-by-step explanation:

A and B are corresponding angles and are therefore equal.

Thus, A = 8x - 8 = B = 5x + 25, or

                    3x          =      33

and so x = 33/3 = 11

8 0
3 years ago
The area of the following equilateral triangle is 62.4 square feet that is he height
Vikentia [17]

The height of this triangle would be 10.4

In order to find this, you first must find the length of the sides. Using a manipulated formula for area of an equilateral triangle, we can determine the lengths of the side. Below if the formula.

S = \frac{2}{3}3^{\frac{3}{4}} \sqrt{A}

In this, S is the length of the side and A is the area. So we plug in and get:

S = \frac{2}{3}3^{\frac{3}{4}} \sqrt{62.4}

S = \frac{2}{3}3^{\frac{3}{4}} 7.89

S = 12

Now that we have the side as 12, we can use the Pythagorean Theorem to find the height. If you split a equilateral triangle down the middle, you are left with two right triangles. Using this right triangle, the hypotenuse would be 12, the first leg would be 6 (half of the base) and the height would be the other leg. So we plug in and solve.

a^{2} + b^{2} = c^{2}

6^{2} + h^{2} = 12^{2}

36 + h^{2} = 144

h^{2} = 108

h = 10.4

5 0
2 years ago
Math help. you could just answer the inequality and I can do the rest but it would be helpful you you could answer both.
REY [17]

Answer:

Answer is first line

Step-by-step explanation:

-7(x+9) >= 37+3x

Going to solve for x:

-7x - 63 >= 37 + 3x

-7x - 3x >= 37 + 63

-10x  >= 100

x <= 100/-10       (notice the change in equality because we divided by negative)

x <= -10

7 0
2 years ago
Write 9/10 - 3/10 as a mixed number
jeka57 [31]
You do 9/10. Which here it only fits once. So this is 1 1/10. The other one fits 3 times. So its 3 1/10.

If you want the subtraction also done its 1 4/10.
3 0
3 years ago
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