Evaluate a + 4 a+4a, plus, 4 when a = 7 a=7a, equals, 7.
1 answer:
<em>When evaluating then we get that the expression is 11</em>
As I understand the expression is the following:
Let's call, that expression as
So we are asked to find the value of the expression when . In other words, we need to substitute
, so:
So <em>when evaluating then we get that the expression is 11</em>
Distributive property: brainly.com/question/10794694
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Answer:
The value of a is 10.
Step-by-step explanation:
We are given with the following pair of the linear system of equations below;
and
.
Also, the solution is given as (a, -1).
To find the value of 'a', we have to substitute the solution in the equation because it is stated that (a, -1) is the solution of the given two equations.
So, the x coordinate value of the solution is a and the y coordinate value of the solution is (-1).
First, taking the equation;
Put the value of x = a and y = -1;
(-1) = -(a) + 9
a = 9 + 1 = 10
Now, taking the second equation;
Put the value of x = a and y = -1;
0.5a = 6 - 1
0.5a = 5
a = 10
Since we get the value of a = 10 from the equations, so the value of a is 10.
Answer:
0.12 = 12% probability of first selecting a PRIME number, replacing it, then selecting a number less than or equal to 3
Step-by-step explanation:
A probability is the number of desired outcomes divided by the number of total outcomes.
Probability of independent events:
Suppose we have two events, A and B, that are independent. The probability of both happening is given by:
In this question:
Event A: Selecting a prime number.
Event B: Selecting a number less than or equal to 3
Probability of selecting a prime number:
Between 1 and 10, we have 4 prime numbers(2,3, 5 and 7), out of 10. So
Probability of selecting a number less than or equal to 3:
Three numbers(1,2,3) out of 10. So
Probability of both:
0.12 = 12% probability of first selecting a PRIME number, replacing it, then selecting a number less than or equal to 3