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
Neko [114]
3 years ago
5

Please help, seriously confused

Mathematics
1 answer:
Rufina [12.5K]3 years ago
6 0
Original height = original width = x mm

1. She made an enlarged copy...
height = 2x
width = 2x

2. She cut off a rectangle...
height = 2x
width = \frac{2}{3} *2x= \frac{4}{3}x

3.She doubled the width...
height = 2x
width = 2*\frac{4}{3}x = \frac{8}{3}x

height * width = area

2x * \frac{8}{3}x=139 \ 968  \\ \\ \frac{16}{3}x^2= 139 \ 968 \\\\ x^2=139 \ 968: \frac{16}{3}=139 \ 968 * \frac{3}{16}=  8 \ 748*3 = 26 \ 244 \\  \\ x= \sqrt{26 \ 244} = 162 \ mm

Original height was 162 mm 
You might be interested in
What is the Least Common Multiple of x and 3x?
beks73 [17]

Answer:

3

Step-by-step explanation:

If you divide both numbers by x then it's just 1 and 3. LCM of 1 and 3 is 3

6 0
3 years ago
Read 2 more answers
An orthocenter of a triangle is
Kamila [148]

Answer:

the intersection of the triangle's three altitudes.

Step-by-step explanation:

hope this helped </3

5 0
3 years ago
What is the equation in point-slope form for the line parallel to y = –2x + 10 that contains J(6, 8)?
Liula [17]
Y-y1= m(x1-x2)
using this formula
the answer is d
because slope has to remain the same if its parallel

5 0
3 years ago
Mary read a book that had 4200 pages last summer. If it took her 35 days to finish the book. How many pages did she read per day
asambeis [7]
Do 4200/35............
5 0
3 years ago
Find the dimensions of a closed right circular cylindrical can of smallest surface area whose volume is 128pi cm^3
Ratling [72]
The surface area of a cylindrical can is equal to the sum of the area of two circles and the body of the cylinder: 2πr2 + 2πrh. volume is equal to π<span>r2h.

V = </span>π<span>r2h = 128 pi
r2h = 128 
h = 128/r2

A = </span><span>2πr2 + 2πrh
</span>A = 2πr2 + 2πr*(<span>128/r2)
</span>A = 2πr2 + 256 <span>π / r
</span><span>
the optimum dimensions is determined by taking the first derivative and equating to zero.

dA = 4 </span>πr - 256 <span>π /r2 = 0
r = 4 cm
h = 8 cm
</span><span>

</span>
4 0
3 years ago
Other questions:
  • Rectangle ABCD is congruent to rectangle A"B"C"D" .
    13·2 answers
  • Triangle MNP is dilated according to the rule DO,1.5 (x,y)(1.5x, 1.5y) to create the image triangle M'N'P, which is not shown.
    8·2 answers
  • Rowena is proving that AD ≅ EB. Which statement does the ♣ represent in her proof?
    12·2 answers
  • The water in Jana's swimming pool is 50 inches deep. Each minute the water loses 0.05 inch of depth. Write an algebraic expressi
    9·1 answer
  • Q2
    5·1 answer
  • Union President Abraham Lincoln set the Union's first naval goal when he declared a blockade of the Southern coasts. His plan wa
    7·1 answer
  • Please help me no links please ​
    6·1 answer
  • In Example 9.2 (p. 214), if you instead carried the suitcase by the handle so that the suitcase was hanging directly at your sid
    7·1 answer
  • What is the slope of the graph?
    14·1 answer
  • Nylah buys a pack of 20 markers for $6.00. How much does a pack of 30<br> markers cost? *
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!