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asambeis [7]
3 years ago
7

3-1/8a=1/4 Pleasseeee help

Mathematics
2 answers:
Vika [28.1K]3 years ago
7 0
3 - 1/8a = 1/4

The goal is to isolate "a" and its coefficient to make the simplification process easier.

Start by subtracting 3 from both sides:

3 - 3 - 1/8a = 1/4 -3

-1/8a = 1/4 - 3

Next, multiply 3 by 4/4 to convert it into a fraction:

-1/8a = 1/4 - [3 • (4/4)]

-1/8a = 1/4 - 12/4

-1/8a = - 11/4

Multiply both sides by -8:

(-8) -1/8a = - 11/4 (-8)

a = 88/4 = 22

Therefore, a = 22.
Rzqust [24]3 years ago
5 0
<h3>a = 22 the correct answer</h3>
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Define $g$ by $g(x)=5x-4$. If $g(x)=f^{-1}(x)-3$ and $f^{-1}(x)$ is the inverse of the function $f(x)=ax+b$, find $5a+5b$.
Slav-nsk [51]

Answer:

<h2>2</h2>

Step-by-step explanation:

Given g(x)=5x-4 and g(x)=f^{-1}(x)-3

Substituting g(x) =  5x-4 into the second equation we have;

5x-4 =  f^{-1}(x)-3

f^{-1}(x) = 5x-4+3

f^{-1}(x) = 5x-1

To get f(x), let us first make y to be equal  f^{-1}(x)

y = 5x-1

expressing x in terms of y to get f(x), we have;

5x = y+1

x = y/5+1/5

replacing y with x, we will have;

y = x/5 + 1/5

F(x) = x/5 + 1/5

Comparing x/5 + 1/5 with ax+b, a = 1/5 and b = 1/5

5a + 5b = 5(1/5)+ 5(1/5)

5a+5b = 1+1

5a+5b = 2

8 0
3 years ago
In rectangle JKLM, angle JML is 3x - 15. Find the value of x.
S_A_V [24]
All angles of a rectangle are right angles.
Right angles measure up to 90 degrees.
JML is also a right angle which means 3x - 15 is equal to 90

3x - 15 = 90
3x = 105
x = 35
8 0
3 years ago
Solve the system by graphing. Select the solution(s).<br> y = x + 2<br> y = 0.5(x + 2)
faltersainse [42]

Answer:

Part 1) The solution is the point (-2,0)

Part 2) The solutions are the points (-2,0) and (0,2)

Step-by-step explanation:

Part 1

we have

y=x+2 -----> equation A

y=0.5(x+2) ----> y=0.5x+1 ---> equation B

Solve the system by graphing

Remember that the solution of the system is the intersection point both graphs

using a graphing tool

The solution is the point (-2,0)

see the attached figure N 1

Part 2

we have

y=x+2 -----> equation A

y=0.5(x+2)^2 ----> equation B

Solve the system by graphing

Remember that the solution of the system are the intersection points both graphs

using a graphing tool

The solutions are the points (-2,0) and (0,2)

see the attached figure N 2

4 0
3 years ago
A man is 25 years old. His mother is exactly three times his age. How old will the man’s mother be when he is 35 years old? ​
klio [65]

Answer:

85

Step-by-step explanation:

Note the mother is 3x his age when he is 25 years old. Multiply 3 with 25:

3 x 25 = 75

Ten years pass (35 - 25 = 10). Add 10 to 75:

75 + 10 = 85

When the man is 35 years old, his mother will be 85 years old.

~

4 0
3 years ago
In Triangle LMN, &lt; M is a right angle. If MN = 10 and LN = 20.4, determine m &lt; N to the nearest degree.
UNO [17]

cos θ = \frac{adjacent}{hypotenuse}

cos ∠N = \frac{10}{20.4}

      ∠N = cos⁻¹ (\frac{10}{20.4})

      ∠N = 60.65°

Answer: 61°

6 0
3 years ago
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