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3 years ago

4x - (x - 5) + 3 = -1

Mathematics

2 answers:

vladimir1956 [14]3 years ago

8 0

Answer:

- 3

Step-by-step explanation:

Step 1:

4x - ( x - 5 ) + 3 = - 1

Step 2:

4x - x + 5 + 3 = - 1

Step 3:

3x + 8 = - 1

Step 4:

3x = - 9

Answer:

x = - 3

Hope This Helps :)

kap26 [50]3 years ago

7 0

Answer:

x = 3

Step-by-step explanation:

First we know that you have to do parenthesis because, of PEDAS so the problem would look like 4x - (x-5)+3=-1. You would first because, it is always 1 outside of parenthesis it would now look like 4x - x +5 +3=-1. Next you would combine like term 3x +8 = -1. Next you would subtract 8 from both sides 3x = 9. Next you would divide 3 from both sides. x=3

Therefore your answer would be x = 3

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The difference between the most hours of sleep and the least of these students was 2.5 hours. True or false?

SashulF [63]

The correct anwer is False

Explanation

According to the graph, it can be seen that a student has four hours of sleep as the minimum number of hours of sleep; two students have six hours of sleep, four students have six and a half hours of sleep, four have seven hours of sleep, three have seven and a half hours of sleep, five have eight hours of sleep, and one has eight and a half hours of sleep as maximum hours of sleep. Therefore, it can be affirmed that the statement that the difference between the maximum amount and the minimum number of hours is two and a half hours is false because between four hours and eight and a half hours there are four and a half hours of difference. So, the correct answer is False.

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2 years ago

What is the slope of the line that passes through the following points: (3,-1) and (-1,2)?

Katyanochek1 [597]

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2 years ago

Deana bought 12 packages of batteries. Some of the packages contained 4 batteries and some contained 6 batteries. She bought a t

NARA [144]

Answer:

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2 years ago

In a survey of adults who follow more than one sport, 30% listed football as their favorite sport. You survey 15 adults who foll

maxonik [38]

Answer: 0.5

Step-by-step explanation:

Binomial probability formula :-

$P(x)=^nC_x\ p^x(q)^{n-x}$ , where P(x) is the probability of getting success in x trials , n is the total trials and p is the probability of getting success in each trial.

Given : The probability that the adults follow more than one game = 0.30

Then , q= 1-p = 1-0.30=0.70

The number of adults surveyed : n= 15

Let X be represents the adults who follow more than one sport.

Then , the probability that fewer than 4 of them will say that football is their favorite sport,

$P(X\leq4)=P(x=0)+P(x=1)+P(x=2)+P(x=3)+P(x=4)\\\\=^{15}C_{0}\ (0.30)^0(0.70)^{15}+^{15}C_{1}\ (0.30)^1(0.70)^{14}+^{15}C_{2}\ (0.30)^2(0.70)^{13}+^{15}C_{3}\ (0.30)^3(0.70)^{12}+^{15}C_{4}\ (0.30)^4(0.70)^{11}\\\\=(0.30)^0(0.70)^{15}+15(0.30)^1(0.70)^{14}+105(0.30)^2(0.70)^{13}+455(0.30)^3(0.70)^{12}+1365(0.30)^4(0.70)^{11}\\\\=0.515491059227\approx0.5$

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3 years ago

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creativ13 [48]

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2 years ago