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ella [17]
3 years ago
13

Two-step equations with decimals and fractions Solve for p. −5(p+ 3/5 )=−4

Mathematics
2 answers:
GrogVix [38]3 years ago
4 0

Answer:

1/5 or 0.2

Step-by-step explanation:

-5(p+3/5)=-4

Let's convert 3/5 to decimal form:

-5(p+0.6)=-4

Expand parentheses:

-5p-3=-4

Add -3 to both sides:

-5p=-1

Divide both sides by -5:

p=1/5 or 0.2

Hope this helps!

faltersainse [42]3 years ago
4 0

Answer:

p = 1/5

Step-by-step explanation:

−5(p+ 3/5 )=−4

Distribute

-5p -5(3/5) = -4

-5p -3 = -4

Add 3 to each side

-5p -3+3 = -4+3

-5p = -1

Divide each side by -5

-5p/-5 = -1/-5

p = 1/5

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Vinvika [58]

Answer: D) Flat area with a large number of plants

The roots of the plants hold in the soil, which prevents/reduces erosion.

The steeper slope means gravity pulls down the soil material faster, since there is less ground in the way to hold it up, so to speak. So flatter areas are less prone to erosion compared to steeper areas.

So that's why overall, flatter areas with lots of plants would have the least erosion.

7 0
2 years ago
#1. Which is equal to z3 8? A. (z - 2)(z^2 - 2z - 4). B. (z + 2)(z^2 - 2z + 4) C.(z - 2)(z^2+ 2z + 4). D. (z + 2)(z^2+ 2z - 4) #
tankabanditka [31]
#1. B
<span>(z * z^2 + z * 2z + z * 4) – (-2 *z^2 – (-2) 2z – (-2) 4)
Z^3 + 2z^2 + 4z – 2z^2 -4z – 8
Z^3 + 2z^2 – 2z^2 + 4z – 4z – 8
Z^3 - 8
</span>
#2 and #3. D
<span>(x + y)(x + 2)
x^2 + 2x + yx + 2y
</span>
#4. D.
<span>(x - 7)(x + 7)(x- 2)
x^2 + 7x – 7x -49
x^2 + x – 49
x^2 -49
(x^2 – 49 ) (x – 2)
x^3 – 2x^2 – 49x + 98
</span>
#5. C
(y - 4) = 0
y = 4
(x + 3)= 0
x = -3

#6. A and B
3 0
3 years ago
Angad rolls a fair dice 120 times.<br> How many times would Angad expect to roll an even number?
Luda [366]

Answer:

60 times

Step-by-step explanation:

Since each roll has a 50% chance of rolling an even number

50% of 120 is 60

4 0
3 years ago
Write the equation of the parabola in vertex form. <br><br> Vertex (1,2) point (2,-4)
lozanna [386]

Answer:

f(x)=6(x-2)^2-4

Step-by-step explanation:

The equation in vertex form is

f(x)=a(x-2)^2 - 4

Substituting in the coordinates (1,2) to find a,

2=a(1-2)^2 - 4 \\ \\ 2=a-4 \\ \\ a=6 \\ \\ \therefore f(x)=6(x-2)^2-4

8 0
1 year ago
The graph represents one side of the roof of a building.<br> The slope of the line is
Ray Of Light [21]

Answer:

The slope of the line is 7/2.

Step-by-step explanation:

If a line passes through two points (x_1,y_1) and (x_2,y_2), then the slope of the line is

m=\frac{y_2-y_1}{x_2-x_1}

From the given figure it is clear that the line passes though two points (0,0) and (4,14).

Using the above formula, the slope of the line is

m=\frac{14-0}{4-0}

m=\frac{14}{4}

m=\frac{7}{2}

Therefore the slope of the line is 7/2.

7 0
3 years ago
Read 2 more answers
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