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Deffense [45]
3 years ago
15

What is the ratio for the surface areas of the rectangular prisms shown below, given that they are similar and that the ratio of

their edge lengths is 3:1
Mathematics
1 answer:
Harrizon [31]3 years ago
4 0

Answer:

9 : 1

Step-by-step explanation:

given a linear ratio = a : b, then the corresponding area ratio is

a² : b²

Here the linear ratio of their edges = 3 : 1, hence

ratio of surface areas = 3² : 1² = 9 : 1


You might be interested in
3/5 ÷ 1 1/4 =<br> (20 points)
Anna11 [10]

3/5 ÷ 1 1/4 = 0.48

0.48 will be your anwer


7 0
3 years ago
Solve the equation<br> 0.2(d-6)=0.3d+5-3+0.1d for d
WINSTONCH [101]

Answer:

d= -16

Step-by-step explanation:

To answer this question you'll have to first simplify the equation to

0.2d+-1.2=0.3d+5-3+0.1d

then combining like terms you get

0.2d-1.2=(0.3d+0.1d)+(5+-3)

0.2d-1.2=0.4d+2

then subtract 0.4d from both sides leaving you with

-0.2d-1.2=2

then add 1.2 to both sides

-0.2d=3.2

after you divide both sides by -0.2

leaving you with the answer

D= -16

7 0
3 years ago
Read 2 more answers
1. What is the equation of the line that passes through (2, -1) and whose y-intercept is 5?
weqwewe [10]
1. Selection B is the only equation satisfied by both (0, 5) and (2, -1).

2. Selection D is the only one with a slope of 5/2.
6 0
3 years ago
Sulin cuts a ribbon into two pieces in the ratio 5 : 3. The shorter piece is 42 cm long. What is the length of the original ribb
blagie [28]
You divide 42 by 3 then multiply what you get times 5. it should equal 60 cm
8 0
3 years ago
Seb bought 2 apples and 3 pears.
ryzh [129]
2a + 3p = 1.59

a = 0.24

Plug it in our equation:

2(0.24) + 3p = 1.59

Multiply:

0.48 + 3p = 1.59

Subtract 0.48 to both sides:

3p = 1.11

Divide 3 to both sides:

p = 0.37

So one pair costs <span>£0.37</span>
5 0
3 years ago
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