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Debora [2.8K]
3 years ago
13

Mary and Jim have tickets to a concert. Mary's ticket number is one less than Jim's ticket number. The product of their numbers

is 812. What are the two numbers?
Mathematics
2 answers:
erastova [34]3 years ago
6 0
Mary - M 
<span>Jim - J </span>

<span>Mary's ticket number is one less than Jim's ticket number. </span>
<span>J - 1 = M </span>

<span>The product of their numbers is 812 </span>
<span>M * J = 812 </span>

<span>plus first equation into 2nd </span>
<span>(J - 1) J = 812 </span>
<span>J^2 - J - 812 = 0 </span>
<span>(J - 29) (J + 28) = 0 </span>
<span>J = 29 or -28, 29 cuz you can't have negative for question. </span>
<span>J = 29 </span>

<span>plus 29 in first equation, </span>

<span>29 - 1 = M </span>
<span>28 = M </span>

<span>Mary's ticket number is 28 and Jim is 29</span>
AnnyKZ [126]3 years ago
6 0
X+ (x-1)=812
x+x-1=812
2x-1=812
2x-1+1=812+1
2x=813
(2x/2)=(813/2)
x= 406.5

One ticket number has to be 406.5, and the other has to be 405.5
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Mr. Jones has 550 goats, which is 10% more than Mr. King has. How many more goats does Mr. Jones have than Mr. King?
Harman [31]

Answer:

55

Step-by-step explanation:

Number of Jone's goats = 550

Let Number of King's goat = x

Jone's goat is 10% more than King's ;

Thus, number King's goat would be ;

x = 550 - (10% of 550)

x = 550 - 55

x = 495

x = Mr. King's goat

Hence, Jones goat is :

550 - 495 = 55 more than Mr King's goat.

8 0
3 years ago
PLEASE HELP!!! FINDING PROBABILITY MATH!!! expert help would be nice
ozzi

The probability that a person wins the game is 32.1%

<h3>How to illustrate the probability?</h3>

Based on the information given, the following can be depicted. It should be noted that there are 6 sides as well as 4 cards.

Therefore, the numbers on the dice i.e from 1 - 6 will be represented 4 times each. This gives a total of (4 × 6) = 24. There are also 4 cards. The total in sample space will now be:

= 24 + 4 = 28

The frequency table will be such that 28 or more have a relative frequency of 9. Therefore, the probability that a person wins the game will be:

= 9/28 = 32.1%

When you win 25% of the time, this illustrates that the number of products picked will be:

= 25% × 28

= 7 products.

The probability of participants achieving a winning score of 36 or higher in four consecutive attempts will be:

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6 0
2 years ago
Use the formula to find the length of the radius if the area is 25 square centimeters.
Alexandra [31]

Answer:r = 2.81 centimeters

Step-by-step explanation:

The area of this circle can be found using the formula

A=πr^2

Where r = radius of the circle

π is a constant whose value is 3.14

We are given the area of the circle to be 25 square centimeters. To determine the length of the radius of the circle , we will make r the subject of the formula

r^2 = A/π

Taking square root of both sides of the equation,

r = √A/π

Since A = 25 and π = 3.14,

r= √25/3.14

r = 2.82166323992

Approximating to the nearest tenth of a centimeter,

r = 2.81 centimeters

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Answer:  

I would think 15c+5= 35 because it is the one answer that makes the most sense.  If you get this wrong I am so sorry.

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