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
kykrilka [37]
2 years ago
6

Tom has a large photo he wants to shrink to wallet-sized. It's width is 20 centimeters and it's len is 30 centimeters. If he wan

ts the width to be 5 centimeters what should the length be?
Mathematics
1 answer:
dsp732 years ago
5 0
We can use ratios, in other words, if one part of the photo is changed x times, how many times does the other part change?

We can set up the proportion as :
width 1 : length 1 = width 2 : length 2

20 : 30 = 5 : x

We do inverse multiplication, or multiply the outer with outer and inner with inner (W1 * L2 and L1 * W2)

20*x = 30*5
20x = 150
Divide all by 10
2x = 15
Divide all by 2 to isolate x
x = 15/2
x = 7.5cm
You might be interested in
An object at the top of a building with height 110 feet is thrown upward with an initial speed of 23 ft/s. Find its position z(t
alina1380 [7]

Answer:

Step-by-step explanation:

Given

Height of building is h=110\ ft

Initial upward velocity u=23\ ft/s

height of object is given by

z(t)=ut+\frac{1}{2}gt^2

but building is already at a height of 110 ft so z(t) must be given by

Z(t)=ut+\frac{1}{2}(-g)t^2+110

Z(t)=23\times t-\frac{1}{2}\times 9.8\times t^2

Z(t)=-16t^2+23t+110

Time when it hits is given by when Z(t)=0[/tex]

-16t^2+23t+110=0

t=\frac{-23\pm \sqrt{(23)^2-4\times (-16)\times 110}}{2\times (-16)}

t=\frac{-23\pm 87}{-32}

t=3.43\ s

6 0
3 years ago
Two number have a sum of 71 and a difference of 37
larisa86 [58]
The right answer for the question that is being asked and shown above is that:

Two numbers have a sum of 71 and a difference of 37
x + y = 71
x - y = 37

So in order to get the two numbers, here it is:
x + y = 71
x - y = 37
------------
2x = 108
x = 54
y = 71 - 54
y = 17

<span>So the two numbers are 54 and 17</span>
6 0
2 years ago
Read 2 more answers
What is the slope and y-intercept for y=1/2+4x​
kupik [55]
Slope: 4
Y-intercept = 1/2
7 0
3 years ago
Read 2 more answers
35 points!!! Help!! Make sure u answer all!!!
Mademuasel [1]

Answer:

Expression for Perimeter:  6x + 6

x = 12 cm

Verify A = 360:

2(12) x (12+3) = 360

24 x 15 = 360

360 = 360

Step-by-step explanation:

8 0
2 years ago
A cake recipe calls for 45 cup of chocolate. If a baker has 73 cups of chocolate, the baker can make a maximum of how many cakes
lora16 [44]

Answer:

2 batches

Step-by-step explanation:

I need at least 20 words so don't mind this :PPPPPPPP

3 0
2 years ago
Other questions:
  • Lily owes $52000 in student loans for college. If the loan will be repaid in 5.5 years and the interest rate charged is 6.75%, t
    7·1 answer
  •  Neda sells televisions. She earns a fixed amount for each television and an additional $ 15 if the buyer gets an extended warra
    8·1 answer
  • Solve and show all steps
    15·1 answer
  • Q5. A car is bought for £5000 and sold for £7500.<br> What is the percentage profit?
    10·1 answer
  • Find the value of y if the measure of the vertex angle is 64 degrees and base angle is (2y -11)
    9·1 answer
  • The triangles are similar, find the length of the unknown side. Round your answers to the nearest tenth (0.1), if necessary.
    7·1 answer
  • 25 POINTS!! A standard deck of 52 playing cards contains 13 cards in each of four suits: hearts, diamonds, clubs, and spades. Fo
    15·1 answer
  • What is the Answer to -14.5 + (-1.24)
    15·2 answers
  • Ashley has 100 books that she wants to give away at the rate of n books per week. Write a recursive function that represents the
    13·1 answer
  • Which of the following is equivalent to<br> (16 3/2)^1/2 ?<br><br> O 6<br> O 8 <br> O 12<br> O 64
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!