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3 years ago

Which equation has no solution?

Mathematics

1 answer:

wlad13 [49]3 years ago

7 0

Answer:

Step-by-step explanation:

2.3y + 2 + 3.1y = 4.3y + 1.6 + 1.1y + 0.4 combine like terms

(2.3y + 3.1y) + 2 = (4.3y + 1.1y) + (1.6 + 0.4)

5.4y + 2 = 5.4y + 2 subtract 5.4y from both sides

2 = 2 TRUE → infinitely many solutions

32x + 25 - 21x = 10x combine like terms

(32x - 21x) + 25 = 10x

11x + 25 = 10x subtract 11x from both sides

25 = -x change the signs

-25 = x → x = -25 One solution

1/3 + 1/7y = 3/7y subtract 1/7y from both sides

1/3 = 2/7y multiply both sides by 7

7/3 = 2y divide both sides by 2

7/6 = y → y = 7/6 One solution

D. ?

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Cliff wants to determine whether people prefer red apples or green apples. In order to obtain good results, he decides to conduc

Alex17521 [72]

Answer:

Small sample size.

Step-by-step explanation:

The problem with Cliff's survey is that his sample size is too small. 10 out of 5,000 people represent only 0.2% of the population that attended the festival, which is too small of a sample for a reliable study.

Furthermore, since Cliff's question was to determine whether people, in general, prefer red apples or green apples, the sampling of only people who attended the festival might no be adequate.

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3 years ago

Steven's savings account switches from compounding interest annually to quarterly. His account earns 3% interest yearly. Steven

V125BC [204]

Answer:

$0.95 more.

Step-by-step explanation:

The principal of $500, when invested at APR of 3% for 5 years compounded annually will become

$S_1 = 500(1 + \frac{3}{100})^{5} = 579.64$ dollars.

Again, the principal of $500, when invested at APR of 3% for 5 years compounded quarterly will become

$S_2 = 500(1 + \frac{3}{100 \times 4})^{5 \times 4} = 580.59$ dollars.

Therefore, Steven will have $(580.59 - 579.64) = $0.95 more money in his account due to switching from annually to quarterly compounding. (Answer)

8 0

3 years ago

The number 0.8 can be written as 8/10, so it is an irrational number? true or false

Marat540 [252]

It is not an irrational number

3 0

3 years ago

A coin is tossed two times. The set of outcomes is

dem82 [27]

Answer:

hey help me too lol

Step-by-step explanation:

its so importnt

3 0

3 years ago

During each of the past three months, Tyler grew

nataly862011 [7]

First you have to make all the fractions have a common denominator to add them so since 3/16 is the largest denominator you have to convert the others to have the denominator of 16. 1/8 = 2/16. 1/4 = 4/16. so if you add the numerators that’s 3 + 2 + 4 = 9. so the answer would be 9/16, and this cannot be simplified so it is your final answer:)

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3 years ago