How is 617.88 reasonable

Answers

Answer 1

Answer:

In not so complicated math problems, a rough estimate or mentally-calculated estimate, sometimes referred to as a "ballpark estimate," helps to predict the numerical range the final answer should fall within. For example, if the given problem is to determine the sum of 23 plus 76, it can be estimated that the final and precise answer will be somewhere close to 100 because the known calculation 25 plus 75 equals 100 is close to the given problem 23 plus 76.

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The table below shows the amounts of lemon juice and sugar used in each container of lemonade. The ratio of lemon juice to sugar is 1:r, where r is the unit rate. Use the table to determine r.Lemon Juice (cup) Sugar (cup)
1/2 1
2 4
3 6
A. 2
B. 1/2
C.1
D. 2/3

Answers

Answer:

i believe the answer would be C! sorry if im wrong! ;-; <333

The answer would be C

Joe's taxable income is $67,825. Use this tax schedule to calculate the total amount he owes in taxes.1. $8,993.752. $13,380.003. $12,348.80

Answers

the total amount he owes in taxes $13,380.003

Table:

If Taxable Income Is Over -- But Not Over

$\left[\begin{array}{ccc}$0&$7,825\n$7,825&$31,850\n$31,850&$77,100\n$77,100&$160,850\n$160,850&$349,700\n$349,700&No-Limit\end{array}\right]$

The Tax Is:

10 percent of the amount over $0

$782.50 plus 15 percent of the amount over 7,825

$4,386.25 plus 25 percent of the amount over 31,850

$15,698.75 plus 28 percent of the amount over 77,100

$39,148.75 plus 33 percent of the amount over 160,850

$101,469.25 plus 35 percent of the amount over 349,700

Answer Choices:

$\left[\begin{array}{ccc}A.$12,348.80\nB.$4,386.25\nC.$13,380.00\nD.$8,993.75\end{array}\right]$

Answers:

$\left[\begin{array}{ccc}A.$12,348.807&Wrong\nB.$4,386.25&Wrong\nC.$13,380.00&Correct\nD.$8,993.75&Wrong\end{array}\right]$

-37= n/23
what is n?

Answers

-37 = n
23

to solve for n, undo what is happening to the n. if the n is being divided by 23 to get -37, then multiply both sides by 23 to figure out what n is.

-37 * 23 = n * 23
23

-851 = n

the 23 is crowding the n by division
so to undo that we multiply both sides by 23
to get n alone

n = -37 * 23 = - 851

so n = - 851

Atoms are made up of electrons, protons and neutrons. Protons have a positive charge, electrons have a negative charge, and neutrons have no charge. The oxygen atom has 8 electrons and 8 neutrons. How many protons must it have to have 0 charge?

Answers

Answer:

Protons and neutrons each count for one AMU, and the electron counts for zero AMU. So, if the atomic mass of oxygen is 16, that means we have a total of 16 protons and neutrons. 16 total protons and neutrons minus 8 protons leaves us with 8 neutrons.

Final answer:

To have 0 charge, the oxygen atom, with 8 electrons and 8 neutrons, must have 8 protons. The 8 protons, each carrying a positive charge, will balance out the negative charges from the 8 electrons and make the atom neutral.

Explanation:

The oxygen atom as described in the question has 8 electrons and 8 neutrons, both electrons with a negative charge and neutrons with no charge. Now, to make the atom neutral or have 0 charge, the positive charges in the atom (from the protons) must cancel out the negative charges (from the electrons). Considering each electron has a charge of -1, there's a total negative charge of -8 coming from the 8 electrons. In order to balance that and bring the total charge to 0, the oxygen atom must have 8 protons. Each proton carries a +1 charge, so 8 protons will carry a +8 charge, which perfectly balances out the -8 charge from the electrons and gives the atom a net charge of 0.