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Rudiy27
3 years ago
12

What is 50% of 30 in mathematics

Mathematics
2 answers:
tigry1 [53]3 years ago
7 0
X/30 x 100 = 50

100x/ 30 = 50

Cross multiply

100x/100 = 1500/100

x = 15

50% of 30 is 15
noname [10]3 years ago
5 0

Answer:

50% of 30 = 15

Step-by-step explanation:

  • = 50/100 × 30
  • = 1/2 × 30
  • = 15
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Plz help me
Iteru [2.4K]

Answer:

I think the answer is 60 feet.

Step-by-step explanation:

Because his rate is 2 feet per second and the question asks where he'll be after 30 seconds, the answer has to be 60 feet.

I hope this helps!

5 0
3 years ago
How do you find the value of c that satisfy the equation:
victus00 [196]

Answer:

The value of c = -0.5∈ (-1,0)

Step-by-step explanation:

<u>Step(i)</u>:-

Given function f(x) = 4x² +4x -3 on the interval [-1 ,0]

<u> Mean Value theorem</u>

Let 'f' be continuous on [a ,b] and differentiable on (a ,b). The there exists a Point 'c' in (a ,b) such that

f^{l} (c)  = \frac{f(b) -f(a)}{b-a}

<u>Step(ii):</u>-

Given  f(x) = 4x² +4x -3 …(i)

Differentiating equation (i) with respective to 'x'

          f¹(x) = 4(2x) +4(1) = 8x+4

<u>Step(iii)</u>:-

By using mean value theorem

f^{l} (c)  = \frac{f(0) -f(-1)}{0-(-1)}

8c+4 = \frac{-3-(4(-1)^2+4(-1)-3)}{0-(-1)}

8c+4 = -3-(-3)

8c+4 = 0

8c = -4

c = \frac{-4}{8} = \frac{-1}{2} = -0.5

c ∈ (-1,0)

<u>Conclusion</u>:-

The value of c = -0.5∈ (-1,0)

         

<u></u>

8 0
3 years ago
What are two step equations
miskamm [114]
2 step equations are equations that require 2 steps to solve it.

For example, 2x + 5 = 3x + 6

To solve for x, we must isolate it.

First subtract 2x on both sides, which is ONE step.

2x + 5 = 3x + 6
-2x         -2x

5 = x + 6

The we must subtract 6 from both sides of the equation, which makes is the second step.

5 = x + 6
-6       -6

-1 = x 

-1 would be the answer and we only used 2 steps to solve it.
8 0
3 years ago
Just need the answer. it was "Check all that apply." at the end.
lianna [129]

Billy, let's recall what a linear pair of angles is:

• They are formed when two lines intersect.

,

• Two angles are said to be linear if they are adjacent angles formed by two intersecting lines.

,

• The measure of a straight angle is 180 degrees, so a linear pair of angles must add up to 180 degrees.

Upon saying that we have that:

• CAD and DAE are linear pairs

,

• CAD and CAB are linear pairs

,

• DAE and BAE are linear pairs

,

• DAE and DAC are linear pairs

Now, you are ready to select all the options that actually apply.

3 0
1 year ago
Can someone help me <br> f(x) = - 7(x - 11)3(x + 13)3(x + 2)(x - 3)5
jekas [21]

Answer:confusing

Step-by-step explanation:

6 0
3 years ago
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