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bogdanovich [222]
3 years ago
13

Sue has 18 sweets Tony has 18 sweets Sue gives tony x sweets Sue then eats 5 of her sweets Tony then eats half of his sweets Wri

te expressions for the number of sweets sue and tony have Do you know how to answer this? Whatever i try is wrong.
Mathematics
1 answer:
JulsSmile [24]3 years ago
8 0

Answer:

sue = 18

tony = 18

sue = 18 - x

tony = 18 + x

sue = 18 - x - 5

tony = (18 + x) / 2

sue = 13 - x

tony = (18 + x) / 2

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6 = -4x + y<br> -5x - y = 21<br> Please Help Fast!!!!!! Substitution
Vera_Pavlovna [14]

Answer:

y = 4x + 6

-5x - 4x - 6 = 21

-9x - 6 = 21

-9x = 27

x = -3

y - 4(-3) = 6

y + 12 = 6

y = -6

(-3, -6)

5 0
3 years ago
Please help!<br> "Congruence and Constructions".
marin [14]

Answer:

MNK = TRP

MN is congruent to TR.

X = 6.3

Step-by-step explanation:

MNK is congruent to TRP because the two triangles are congruent, which is a given statement. This also means that all side and angle measures will be congruent. Because of this, it can be inferred that MN is congruent to TR and they have equal side length measures. This means that TR measures 20. This means that 3X - 1 = 20. By solving we can get 6.33.

7 0
3 years ago
Please solve these hjgh
Kruka [31]

Answer:

  1. BDA
  2. ACD
  3. QBO

Step-by-step explanation:

BRO,HOW TO UPLOAD PDG

7 0
3 years ago
The lifetime of a certain type of TV tube has a normal distribution with a mean of 61 and a standard deviation of 6 months. What
Ad libitum [116K]

Answer:

P(57

P(-0.67

P(-0.67

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".  

Solution to the problem

Let X the random variable that represent the lifetime for a TV of a population, and for this case we know the distribution for X is given by:

X \sim N(61,6)  

Where \mu=61 and \sigma=6

We are interested on this probability

P(57

And the best way to solve this problem is using the normal standard distribution and the z score given by:

z=\frac{x-\mu}{\sigma}

If we apply this formula to our probability we got this:

P(57

And we can find this probability like this:

P(-0.67

And in order to find these probabilities we can use tables for the normal standard distribution, excel or a calculator.  

P(-0.67

6 0
3 years ago
If point C is the midpoint of segment AB, which statement is true?
a_sh-v [17]
<span>d)Segment AC and segment CB are equal in measure.

Here, AB = AC + CB

Hope this helps!</span>
7 0
3 years ago
Read 2 more answers
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