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2 years ago

2x+3>5x+4 how do I do it

Mathematics

1 answer:

trasher [3.6K]2 years ago

5 0

What are they asking you to do? That's the question.

You might be interested in

Select the correct answer.

Inessa [10]

I think its a :) if not c

6 0

1 year ago

suppose 60% of kids who visit a doctor have a fever, and 20% of kids with a fever have sore throats. what's the probability that

kkurt [141]

Answer:

0.12

Step-by-step explanation:

Suppose there are 100 kids

60% have fever, so what is 60% of 100?

We convert percentage to decimal and multiply:

60/100 = 0.6

0.6 * 100 = 60 have fever

20% of the people having fever (60 of them) have sore throats, so,

What is 20% of 60?

We convert percentage to decimal and multiply:

20/100 = 0.2

0.2 * 60 = 12 have sore throat

So, how many people are there with fever AND sore throat, that is 12. We took initially there to be 100 people. Hence, the probability is:

$\frac{12}{100}=0.12$

3 0

2 years ago

2. Find the value of n. 117° 3nº

coldgirl [10]

Answer:

n = 39

Step-by-step explanation:

The base angles are congruent, that is

3n = 117 ( divide both sides by 3 )

n = 39

8 0

2 years ago

Read 2 more answers

Find the sum or difference.

Liula [17]

The answer is C because 1/8 equals 2/4 and she needs 3/4

6 0

2 years ago

A survey study is to be made to estimate the proportion of residents of a certain suburb who favor the construction of a public

lesya [120]

Answer: 601

Step-by-step explanation:

When the prior estimate of population proportion is not given , the formula we apply to find sample size :

$n=0.25(\dfrac{z^*}{E})^2$

, where z* = critical z-value

E=Margin of error

Given : Margin of error = 0.04

Confidence level = 95%

We know that , according to the z-table , the critical value for 95% confidence interval = z*= 1.960

Then, the required sample size : $n=0.25(\dfrac{1.960}{0.04})^2$

$n=0.25(49)^2$

$n=0.25(2401)=600.25\approx601$

Hence, the required minimum sample size = 601

4 0

2 years ago