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natta225 [31]
3 years ago
13

Write a system of equations and solve.

Mathematics
1 answer:
Scrat [10]3 years ago
7 0
This looks a lot like a problem previously posted and already worked.
brainly.com/question/8829608
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What is the solution of y= x squared - 10x + 16
PolarNik [594]

Answer:

The factor out of -10x + 16 is

-2(5x - 8)

Step-by-step explanation:

4 0
2 years ago
Following one side of a rural road, the house numbers increase by eighteen. The house number of the first house on the road is 8
ad-work [718]

Answer:

<u>Recursive:</u>

a_n=a_{(n-1)}+18\\ \\ a_1=82

<u>Explicit:</u>

a_n=64+18n

Explanation:

<u>1. Sequence:</u>

a_1=82\\ \\ a_2=82+18=100\\ \\ a_3=100+18=118\\ \\ a_4=118+18=136\\ \\ ...

<u>2. Recursive formula</u>

The recursive formula permits to calculate the value of the nth term in the sequence using the (n-1)th term in the sequence.

a_n=a_{(n-1)}+18\\ \\ a_1=82

<u>3. Explicit formula</u>

The explicit formula permits to calculate any value of a term in the sequence:

a_n=a_1+(n-1)d\\ \\ a_n=82+(n-1)18\\ \\ a_n=82+18n-18\\ \\ a_n=64+18n

7 0
3 years ago
Bo and Erica are yoga instructors. Between the two of them, they teach 45 yoga classes each week. If Erica teaches 15 fewer than
Solnce55 [7]

Answer:

20 and 25.

Step-by-step explanation:

Given:

They both teach total 45 yoga classes each week.

Erica teaches 15 fewer than twice as many as Bo.

To find:

How many classes does each instructor teach per week  = ?

Solution:

Let number of classes are taken by Bo = x

Then number of classes are taken by Erica = 2x - 15  (given)

Total number of classes are taken by both = 45           (given)

According to the question.

x + 2x - 15 = 45

3x - 15 = 45

By adding both side by 15

3x = 60\\

By dividing both side by 3

x = 20

number of classes are taken by Bo = x = 20

number of classes are taken by Erica = 2x - 15

                                                               = 2\times20 - 15 = 40- 15 = 25\\

Therefore, number of classes are taken by Bo and  Erica is 20 and 25.

6 0
3 years ago
What's three different ways to write a negative 1/2
Irina-Kira [14]
- 0.5

\frac{-1}{2}

\frac{1}{-2}

Hope this helps
7 0
3 years ago
Read 2 more answers
NEED AN ANSWER PLZ!!!Mrs. Brown has 7 more boys than girls in her class and has a total of 29 students. Which of the following s
marshall27 [118]

Answer:

b = g + 7 and b+g= 29. is the answer

5 0
2 years ago
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