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
Romashka-Z-Leto [24]
3 years ago
14

The bottom and top of a box are rectangles twice as long as they are wide. Find the volume of the box if it is four feet high an

d has a total surface area of 220 feet squared.
Mathematics
1 answer:
Sav [38]3 years ago
5 0

Let x = the width

then

2x = the length

:

The box dimensions: 2x by x by 4

Given the surface area:

2(2x*x) + 2(2x*4) + 2(x*4) = 220

:

4x^2 + 16x + 8x = 220


A quadratic equation:

4x^2 + 24x - 220 = 0

simplify, divide by 4

x^2 + 6x - 55 = 0

Factor

(x+11)(x-5) = 0

The positive solution is what we want here:

x = 5 ft is the width

then

2(5) = 10 ft is the length

:

Find the volume

10 * 5 * 4 = 200 cu/ft is the volume


You might be interested in
nia has number cards for the 2,3,8,9,5 what are all the different ways one can arrange the cards of even number of two in the te
Sonbull [250]
There are 6 different ways:

23,598
23,958
25,398
25,938
29,538
29,358

5 0
3 years ago
Barbra can walk 3,200 meters in 24 minutes. How far can she walk in three minutes.
lisabon 2012 [21]

Answer:

Step-by-step explanation:

To find how far she can walk in 3 minutes, we need to find how fast she can walk in 1 minutes. We do this by dividing the distance she walked by the time she walked. Lets do so.

3200/24=133.33

She walks 133.33 meters per minute. Now to find her distance in 3 minutes w multiply this number by 3.

133.33*3=400

Barbra walks 400 meters every 3 minutes.

3 0
3 years ago
The intercept (factored) form a parabola.
Svet_ta [14]
The a value affects the graph by vertically stretching or compressing the graph.
The r and s values affect the zeros, or x intercepts of the parabola, and therefore the vertex.
Hope this helps!
8 0
3 years ago
A rectangular flower garden measures 9 ft. by Il ft. About how long is a diagonal path through the garden?
dolphi86 [110]

Answer:

14.212 feet

Step-by-step explanation:

Pythagorean Theorem.

sqrt(9^2+11^2) = 14.212

5 0
3 years ago
Reduce in standard form -3/-15. on rational no grade 8 with step by step solution ​
sashaice [31]

Answer:

i'm not too good in this, but i believe the answer is -3

Step-by-step explanation:

the hcf, highest common factor, of both -3 and -15 is -3, hence making the answer -3? if this is incorrect, i apologize.

3 0
2 years ago
Other questions:
  • Assume that you pay $2,849.84 in state property taxes every year. If your property has an assessed value of $41,302, what is you
    11·2 answers
  • Richard Saltwood’s car averages 620 miles on its 20-gallon tank of gas. If Richard runs out of gas and a mechanic comes to his r
    15·1 answer
  • Determine the intercept of the line​
    6·2 answers
  • Given that f(x) = 2x + 1 and g(x) = −5x + 2, solve for f(g(x)) when x = 3.
    11·2 answers
  • A container holds 10 gallons of water. If 5/8 of a gallon is added to the container each hour, how many hours would it take to f
    12·2 answers
  • What is the vertex of each function's graph?
    9·1 answer
  • HELPP!!<br> if f(x)= 5x - 12 what is f(-4)
    13·1 answer
  • What is the value of n?
    6·1 answer
  • Can anyone help answer all these questions
    6·1 answer
  • Which is the coefficient of the expression - 3a²c-7?<br> -7<br> -3<br> 2<br> 3
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!