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pantera1 [17]
3 years ago
5

Help please helppppp

Mathematics
1 answer:
steposvetlana [31]3 years ago
6 0

Answer:

oof thats hard

Step-by-step explanation:

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2x+4+x=8+2(3+x)-3 solve for x
Marizza181 [45]

Answer:x=7

Step-by-step explanation:

Use BODMAS

Open bracket first

2x+4+x=8+2(3+x)-3

2x+4+x=8+6+2x-3

2×+x-2x=8+6-3-4

×=7

4 0
2 years ago
Read 2 more answers
Editors preparing a report on the economy are trying to estimate the percentage of businesses that plan to hire
goldfiish [28.3K]

The number of randomly selected employers that would have to be contacted is 9604

<h3>How to solve for the value of n</h3>

The confidence level is 95%

1 - 0.95 = 0.05

We have to get the z value at 0.05

0.05/2 = 0.025

Using the standard normal table, the critical value at 0.025 = 1.96

We have to define the probability as P = 50% = 0.5

we have to define q = 1 - 50% = 0.5

The formula that would be used to find the value of n is given as

n = pq\frac{Zc}{E} ^2

These variables used are:

pq = variance of population

E = margin of error = 0.01

critical value = Zc = 1.96

n = 0.5*0.5 (\frac{1.96}{0.01})^2

= 0.25 * 38416

= 9604

Hence the sample space is given as 9604

Read more on confidence interval here:

brainly.com/question/26658887

#SPJ1

8 0
11 months ago
Ayala biked 12.76 miles on Sunday, 3.45 miles on Monday, and 6.52 miles on Tuesday. Over those three days, about how many miles
agasfer [191]

Answer:

23 miles

Step-by-step explanation:

12.76=13

3.45=3

6.52=7

13+3+7=23

3 0
2 years ago
Read 2 more answers
A chemist is using 381 milliliters of a solution of acid and water. If 17.4% of the solution is acid, how many milliliters of ac
Romashka-Z-Leto [24]

Answer:

  66.3 mL

Step-by-step explanation:

  17.4% of 381 mL is ...

  0.174 × 381 mL = 66.3 mL

7 0
3 years ago
In order to solve the equation −3x + 6 = 5, the first step is to
Angelina_Jolie [31]
The first step is to subtract 6 from both sides to cancel it out. You will be left with -3x= -1.
6 0
2 years ago
Read 2 more answers
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