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Evgen [1.6K]
2 years ago
5

Help me solve this math problem 3x+2y=3

Mathematics
2 answers:
tresset_1 [31]2 years ago
7 0
First of all: subtract 3 from 3x then from 2y then divide
astra-53 [7]2 years ago
5 0
Or you can just use Photomath
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The average age of all students at a certain college is 22 years and the standard deviation is 2 years. What is the probability
Marianna [84]

Answer:

The probability that the average age of a randomly selected sample of 100 students will be less than 21.8 years is 0.159

Step-by-step explanation:

According to the given data we have the following:

mean = μ= 22

standard deviation = σ = 2

n = 100

μx = 22

σx=σ/√n=2/√100=0.2

Therefore, P( x < 21.8)=P(x-μx)/σx<(21.8-22)/0.2

=P(z<-1)

= 0.159

The probability that the average age of a randomly selected sample of 100 students will be less than 21.8 years is 0.159

3 0
3 years ago
The two right scalene triangles shown are similar , but not congruent. Which statement about the triangles is not true
garri49 [273]

Answer: <CDB corresponds to <ECD

Step-by-step explanation:

The angles in similar triangles correspond to each other.

For two angles in similar triangles to correspond to each other, then they have to be in the same position in the triangle. (EX: a 90 degree angle corresponds to another 90 degree angle or an angle across from the shortest side corresponds to another angle in the other triangle across from the shortest side)

In this case, <CDB is to the right of the 90 degree angle, so the angle it will correspond to is the angle in the other triangle which is opposite to the 90 degree angle, which is <CED.

<CED is not <ECD, so that answer is wrong.

Tell me if I need to clarify anything - this topic is kind of hard to explain :/

3 0
3 years ago
Read 2 more answers
A store buys 17 sweaters for $255 and sells them for $578. How much profit 1 point
ddd [48]
The answer is 243 is the answer to this question
4 0
2 years ago
Describe how you could find the area of the figure below then find its area
Sedaia [141]

Answer:

You could cut the shape into 2 different shapes: a triangle and a rectangle, and solve for their areas, then add the areas together.

Step-by-step explanation:

7 0
2 years ago
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Solve for variable. 3p/5 + 8/5 =1
nordsb [41]

\\ \sf\longmapsto \dfrac{3p}{5}+\dfrac{8}{5}=1

\\ \sf\longmapsto \dfrac{3p+8}{5}=1

\\ \sf\longmapsto 3p+8=5

\\ \sf\longmapsto 3p=5-8

\\ \sf\longmapsto 3p=-3

\\ \sf\longmapsto p=\dfrac{-3}{3}

\\ \sf\longmapsto p=-1

5 0
2 years ago
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