1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Flauer [41]
4 years ago
10

7/n = 2/3 what does n stand for

Mathematics
1 answer:
Thepotemich [5.8K]4 years ago
3 0
Set up like a proportion and cross multiply so you get:
2n = 21, then when you divide each side by 2 you get to equal 10.5
You might be interested in
What is 1 fourteenth as a decimal
nataly862011 [7]
1 14'th as a decimal would be 1/14 or 0.0714 (rounded to the nearest ten thousandth)
4 0
4 years ago
Read 2 more answers
Sailors once used a unit of length called a fathom to measure the depth of the water. Each fathom is equal to 6 feet. Which equa
ss7ja [257]

Answer:

y = x*(6 feet/1 fathom)

Step-by-step explanation:

We know the relation:

1 fathom = 6 feet.

We can write:

1 = (6 feet/1 fathom)

Now, remember that any number multiplied by 1 does not change.

Then suppose that we have a measure of 3 fathoms, then:

3 fathoms = (3 fathoms)*1

= (3 fathoms)*((6 feet/1 fathom)) = (3 fathoms/1 fathom)*(6feet)

= 3*(6 feet) = 18 feet.

So we changed the units by multiplying the original measure by  (6 feet/1 fathom)

Then, if x is the depth of water in fathoms and y is the depth of the water in feet, we can write:

y = x*(6 feet/1 fathom)

3 0
3 years ago
The mass of an electron is approximately 9.11 × 10 -28 grams. Find the mass of 401,000,000 electrons. 3.65311 × 10-19 grams 3.65
NNADVOKAT [17]

Answer:

Total\ Mass = 3.65311 * 10^{-19} grams

Step-by-step explanation:

Given

Mass = 9.11 * 10^{-28}g

Required

Determine the mass of 401,000,000 electrons

To do this, we simply multiply the mass of 1 electron by the number of electrons.

This gives:

Total\ Mass = 401,000,000 * 9.11 * 10^{-28}

Total\ Mass = 3653110000 * 10^{-28}

Express 3653110000 as a standard form

Total\ Mass = 3.65311 * 10^9 * 10^{-28}

Apply law of indices:

Total\ Mass = 3.65311 * 10^{9-28}

Total\ Mass = 3.65311 * 10^{-19}

Hence, the mass of 401000000 electrons is 3.65311 * 10^{-19}\ grams

4 0
3 years ago
{y=2x+3 <br> {y=-x-9 solve each system of equations by substitution
azamat

Substitute y = 2x + 3 into y = -x - 9

2x + 3 = -x - 9

Solve for x in 2x + 3 = - - 9

x = -4

Substitute x = -4 into y = 2x + 3

y = -5

Therefore,

<u>x = -4</u>

<u>y = -5</u>

3 0
3 years ago
Matt spent 1/5 of his money on a concert ticket. He spent $60 on a new jacket and $2.50 for bus fare. He reached home with $17.5
inn [45]
17.50 + 2.50 + 60 = 80 
And if Matt spent 1/5 of his money, the rest of the money is 4/5ths of the total.
4/5 = 80/100 and he has $80 so he had a total of <u><em>$100</em></u>.

Hope this helps,
♥<em>A.W.E.<u>S.W.A.N.</u></em>♥
3 0
3 years ago
Other questions:
  • Please help with this math problem !!!!!
    14·1 answer
  • The diagonals of a rhombus measure 8cm and 6cm. What is the length of a side of the rhombus? ​
    14·1 answer
  • Describe how to draw a line that passes through the origin and has a slope of -2/3
    15·1 answer
  • Betty had 40$ in her pocket. She bought 12 identical bags of popcorn. Betty was left with 10$ after buying the popcorn. What was
    12·1 answer
  • Find the equation of a line that is parallel to
    13·1 answer
  • Write an equation in standard form for the line that passes through the given points (0,4) and (6,0)
    13·1 answer
  • a baseball pitcher won 80% of the games he pitched. If he pitched 35 ballgames, how many game did he win?
    11·1 answer
  • Which expression is equivalent to 4^6 • 4^-8
    13·2 answers
  • Find x, if f(x) = 12 and Ax) = 3x. A.36 B.12 C.4 D.3​
    9·2 answers
  • A racing car consumes a mean of 85 gallons of gas per race with a standard deviation of 7 gallons. If 39 racing cars are randoml
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!