1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
12345 [234]
3 years ago
8

Determine whether the ordered pair is a solution of the equation. Show your work to receive credit.

Mathematics
1 answer:
horrorfan [7]3 years ago
3 0

Answer:

3=3 + 10

3 = 13(NO)

x-4y=15

7--8=15

15=15(YES)

You might be interested in
The access code for a garage door consists of three digits. Each digit can be any number from 1 through 5​, and each digit can b
Papessa [141]

Answer:

(a) 125

(b) \dfrac{1}{125}

(c) \dfrac{124}{125}

Step-by-step explanation:

We are given that access code consists of 3 digits.

Each digit can be any digit through 1 to 5 and can be repeated.

Now, this problem is equivalent to the problem that we have to find:

The number of 3 digit numbers that can be formed using the digits 1 to 5 with repetition allowed.

(a) We have 3 places here, unit's, ten's and hundred's places respectively and  each of the 3 places have 5 possibilities (any digit allowed with repetition).

So, total number of access codes possible:

5\times 5 \times 5 = 125

(b) Suppose, an access code is randomly selected, what is the probability that it will be correct.

Formula for probability of an event E can be observed as:

P(E) = \dfrac{\text{Number of favorable cases}}{\text {Total number of cases}}

Here, only 1 code is correct, so

Number of favorable cases = 1

Total number of cases = 125

So, required probability:

P(E) = \dfrac{1}{125}

(c) Probability of not selecting the correct access code on first time:

P(\overline E) = 1-P(E)\\\Rightarrow P(\overline E) = 1-\dfrac{1}{125}\\\Rightarrow P(\overline E) = \dfrac{125-1}{125}\\\Rightarrow P(\overline E) = \dfrac{124}{125}

So, the answers are:

(a) 125

(b) \dfrac{1}{125}

(c) \dfrac{124}{125}

7 0
3 years ago
Kevin was multiplying 1.5 by 0.1. Which statement is true about the product? A. It will be greater than 1.5. B. It will be less
Anastaziya [24]
The answer should be B because it turns to .15
5 0
3 years ago
How much
morpeh [17]

Answer:

She would need at least 11 buses leaving 17 spare seats.

Step-by-step explanation:

171+22+13= 206

206/20= 10.3

10.3 = 11

3 0
2 years ago
Which table represents a linear function that has a slope of 5 and a y-intercept of 20?
erastovalidia [21]

Answer:

The first image.

x |  y

-4 | 0

0 | 20  <--- When x = 0, the y value is the y-intercept.

4 | 40

8 | 60

Step-by-step explanation:

To check the slope, we can use the equation (y₂ - y₁) ÷ (x₂ - x₁) using any two pairs given. For this example, I'll use (-4, 0) and (4, 40).

                                                              x₂  y₂         x₁   y₁

(0 - 40) ÷ (-4 - 4)

(-40) ÷ (-8)

<u>Slope = 5</u>

<u></u>

~Hope this helps!~

8 0
3 years ago
Read 2 more answers
2+x-(3-z); use x=6, and z=1​
Nataly_w [17]

Answer:

<h2>6</h2>

Step-by-step explanation:

2+x-(3-z)\\ x=6\\ z=1\\= 2+6-(3-1)\\\\\mathrm{Follow\:the\:PEMDAS\:order\:of\:operations}\\\\\mathrm{Calculate\:within\:parentheses}\:\left(3-1\right)\::\quad 2\\=2+6-2\\\\\mathrm{Add\:and\:subtract\:\left(left\:to\:right\right)}\:2+6-2\:\\:\quad 6

4 0
3 years ago
Read 2 more answers
Other questions:
  • Nevermind cannot find photot
    10·1 answer
  • You originally draw a design for an art contest on a 2 in. x 5 in. card. The second phase of the contest requires the drawing to
    15·1 answer
  • Kai lives 3 kilometers from school, Brea lives 30,000 meters from school, and Cal lives 30,000 centimeters from school. Which st
    14·1 answer
  • Jane found that 25% of the total number of teenagers surveyed like sandwiches. If 50 teenagers like sandwiches what is the total
    15·2 answers
  • When a number is tripled and 8 is subtracted from the result the answer is 16 what is the number
    14·2 answers
  • Explain what it means to have a positive change, give an example.
    7·1 answer
  • 30 POINTS! PLEASE HELP ASAP! WILL MARK BRAINLIEST!
    13·1 answer
  • After you withdraw $35 from your checking account, the new balance is $260. Which equation shows the equation that could be used
    12·1 answer
  • Y=x-5<br> y=7<br> solve for x<br> simplify your answer as much as possible
    6·1 answer
  • tressa's home is 4/5 mile from school. anton's home is 3/5 mile from school. how many times the distance from anton's home to sc
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!