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Blababa [14]
3 years ago
11

Please help me thank you

Mathematics
1 answer:
kompoz [17]3 years ago
4 0
9 / (4x-2) = 12 / (3x+2)
9 (3x+2) = 12 (4x-2)
27x + 18 = 48x - 24
48x - 27x = 18 + 24
21x = 42
    x = 2

answer is C
x = 2


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X+2(x+3(x+4(x+5)))=153
Allushta [10]

Answer:

x=1

Step-by-step explanation:

Here first open the inner parentheses and use the distributive property,

4(x+5)=4x+20\\\\(x+4(x+5))=(x+4x+20)=(5x+20)\\\\3(x+4(x+5))=3(5x+20)=15x+60\\\\(x+3(x+4(x+5)))=(x+15x+60)=16x+60\\\\2(x+3(x+4(x+5)))=2(16x+60)=32x+120\\\\x+2(x+3(x+4(x+5)))=x+32x+120=33x+120\\\\\\Hence\ x+2(x+3(x+4(x+5)))=x+32x+120=33x+120\\\\\Rightarrow 33x+120=153\\\\33x=153-120\\\\33x=33\\\\x=1

3 0
3 years ago
Solve the following equation for s P=b+2s
laiz [17]

Answer:

s=P-b/2

Step-by-step explanation:

P-b=2s

P-b/2=s

3 0
2 years ago
The probability that a student uses Smarthinking Online Tutoring on a regular basis is 0.31 . In a group of 21 students, what is
Ivenika [448]

Answer: 0.0241

Step-by-step explanation:

This is solved using the probability distribution formula for random variables where the combination formula for selection is used to determine the probability of these random variables occurring. This formula is denoted by:

P(X=r) = nCr × p^r × q^n-r

Where:

n = number of sampled variable which in this case = 21

r = variable outcome being determined which in this case = 5

p = probability of success of the variable which in this case = 0.31

q= 1- p = 1 - 0.31 = 0.69

P(X=5) = 21C5 × 0.31^5 × 0.69^16

P(X=5) = 0.0241

4 0
3 years ago
1.
zalisa [80]
1.) y-7=4(x+3)
2.) y+7=(x-1)
3.) y-3=6(x+8)
6 0
2 years ago
Fill in the blank:
sp2606 [1]
<span>I can be wrong, but I think that the answer is: To find the values of p, q, r and s, you should start by finding all factor pairs of the leading coefficiant and constant term. </span>
4 0
2 years ago
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