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
igomit [66]
4 years ago
14

What value of x makes this proportion true 6/20 =78/x

Mathematics
1 answer:
choli [55]4 years ago
5 0

Answer:

x=260

Step-by-step explanation:

6/20 =78/x

We can use cross products to solve

6*x = 20 *78

Divide each side by 6

6x/6 = 1560/6

x =260

You might be interested in
Four more than the product of three and a number x.
saul85 [17]

Answer:

3x +4

Step-by-step explanation:

4 more= 4+

the product of 3 and x = 3 times x

=

4+ 3x

3 0
3 years ago
Read 2 more answers
Help this answer is confusing.
lbvjy [14]

Answer:

it's the first one 49.96÷5

6 0
3 years ago
Read 2 more answers
11. A roofer calculates his bid price using the formula P = 1.85s + 4.2f, where s is the area of the roof in square feet and f i
storchak [24]

Replace f with 190, replace P with 4148 and solve for  s:

4148 = 1.85s + 4.2(190)

Simplify:

4148 = 1.85 + 798

Subtract 798 from both sides:

3350 = 1.85s

Divide both sides by 1.85:

s = 1,810.81

Rounded to nearest square foot = 1811 square feet.

8 0
4 years ago
Read 2 more answers
What is the following sum 3b^2
densk [106]

The given expression is 3b^2*(\sqrt[3]{54a}) + 3*(\sqrt[3]{2ab^6})

This can be simplified as :

= 3*b^2*(\sqrt[3]{27 *2*a}) + 3*(\sqrt[3]{2*a*b^6})

We know that: \sqrt[3]{27}  = 3

Similarly we also can simplify: \sqrt[3]{b^6}  = b^2

So our expression will look like this:

= 3*3*b^2*(\sqrt[3]{2a}) + 3*b^2*(\sqrt[3]{2a})

= 9b^2*(\sqrt[3]{2a}) + 3b^2*(\sqrt[3]{2a})

=\sqrt[3]{2a}*(9b^2 + 3b^2)

=\sqrt[3]{2a}*(12b^2)

This can also be written as:

12b^2(\sqrt[3]{2a})

So the Answer is Option B


6 0
3 years ago
Read 2 more answers
A company uses the function C(x)=20.50+2000, where C is the cost and x is the number of units it produces, to determine its dail
Kipish [7]
You left it out, but I'm thinking that there must be an 'x' next to the '20.50' in the function.  I'm so sure of it that I'll assume it, as I proceed to answer the question:

C(x) = 20.50x + 2,000

Subtract  2,000 from each side:      C - 2,000  =  20.50 x

Divide each side by  20.50 :        x  =  (C - 2,000) / 20.50

When C = $625,000 . . .

x = (625,000 - 2,000) / 20.50  =  623,000 / 20.50  =  30,390.2439

<em>30,390 complete units</em> are produced, and there are  5  bucks left over,
to split up among all the loyal employees who worked with such diligence and dedication to make it happen.  The company's senior management will graciously add each worker's share to his gross pay before taxes for the second month following the close of the current quarter, with a photocopied note inserted in the pay envelope, expressing management's sincere thanks to everyone, an admonition not to spend it all in one place, and a reminder that no matter how many festivals to their god they need to go out to the desert to celebrate, their tally of bricks for the next quarter shall not be diminished.

6 0
3 years ago
Other questions:
  • Is 8.25 greater than 8.250
    11·2 answers
  • Farrah bought a new car in 2016 one year later the car had depreciated in value by 2300 and was worth $20,140 find the value of
    14·1 answer
  • a Hummer that gets 300 miles on 20 gallons of gas or a Camry that gets 495 miles on 15 gallons of gas
    11·2 answers
  • Which values of x are solutions to the inequality? x&lt;−200 Select each correct answer. x=−210 x=−120 x=−200 x=−102 x=−201
    7·1 answer
  • Solve the inequality for x.
    13·1 answer
  • Ten samples of coal from a northern appalachian source had an average mercury content of 0.242 ppm with a standard deviation of
    5·1 answer
  • Verify the identity:<br> tan(x+pi/2)=-cotx<br><br> please!!
    7·1 answer
  • 8 thousands, 9 hundreds, 2 tens in standard form
    6·2 answers
  • 1. What is the area of the figure below? (1 point)
    12·1 answer
  • Need help on this ! ‼️
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!