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Aloiza [94]
3 years ago
5

Find the percent of each number a. 50% of 46 b. 70% of 110​

Mathematics
1 answer:
I am Lyosha [343]3 years ago
5 0
A is 23 and the answer to b is 77
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The attendance at a family reunion was 160 people. This was 125% of last year's attendance. How many people attended the reunion
Alex787 [66]
If you would like to know how many people attended the reunion last year, you can calculate this using the following steps:

125% of last year's attendance is 160 people
125% of x is 160
125% * x = 160
125/100 * x = 160     /*100/125
x = 160 * 100 / 125
x = 128 people (last year)

Result: 128 people attended the reunion last year.
4 0
3 years ago
PLEASE HELP ITS TIMED WILL GIVE MORE THEN 5 POINTS AND BRAINLIEST
Fofino [41]

Answer:

I believe it is c

Step-by-step explanation:

Correct me if I'm wrong but since the two lines look the same length I believe it is c

6 0
3 years ago
For all the functions of the form f(x) = ac^2 + bx + c, which is true when b=0
bixtya [17]
You didn't show us the choices.
The graph of that function would be centered on the y-axis.
4 0
3 years ago
Read 2 more answers
Help please I’m not sure what the answer for this one is no need to explain
natka813 [3]

Answer:

b.  e^9.45 = x

see last example and this explains whole numbers and decimals.

Step-by-step explanation:

Another example we can Solve  100=20e^2t .

Solution

100 = 20e^2t

5 = 20e ^2t

in 5 = 2t

Therefore  t = in5/ 2

Step 1 was ; Divide by the coefficient of the power

Step 2 was ; Take ln of both sides. Use the fact that ln(x) and ex are inverse functions

Step 3 was; Divide by the coefficient of t

Another example;

Solve  e^2x−e^x = 56 .

Solution

Analysis

When we plan to use factoring to solve a problem, we always get zero on one side of the equation, because zero has the unique property that when a product is zero, one or both of the factors must be zero. We reject the equation  e^x=−7  because a positive number never equals a negative number. The solution  ln(−7)  is not a real number, and in the real number system this solution is rejected as an extraneous solution.

Another example is;

Solve  e^2x=e^x+2 .

Answer

Q&A: Does every logarithmic equation have a solution?

No. Keep in mind that we can only apply the logarithm to a positive number. Always check for extraneous solutions.

Last example determines decimals ;

Solve  lnx =3 .

Solution

lnx^x=3=e^3

Use the definition of the natural logarithm

 

Graph below represents the graph of the equation. On the graph, the x-coordinate of the point at which the two graphs intersect is close to  20 . In other words  e^3≈20 . A calculator gives a better approximation:  e^3≈20.0855 .

The graph below represents the graph of the equation. On the graph, the x-coordinate of the point at which the two graphs intersect is close to  20 . In other words  e^3≈20 . A calculator gives a better approximation:  e^3≈20.0855 .

It shows values of graphs of  y=lnx  and  y=3  cross at the point  (e^3,3) , which is approximately  (20.0855,3) .

See graph below.

7 0
3 years ago
What is the slope for the following:<br> 3x + 2y = 12
Cerrena [4.2K]

Answer:

slope = - \frac{3}{2}

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Given

3x + 2y = 12 ( subtract 3x from both sides )

2y = - 3x + 12 ( divide all terms by 2 )

y = - \frac{3}{2} x + 6 ← in slope- intercept form

with slope m = - \frac{3}{2}

5 0
3 years ago
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