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s2008m [1.1K]
3 years ago
11

Proportions- Determine if each pair of ratios forms a proportion. Show all work!

Mathematics
2 answers:
Sphinxa [80]3 years ago
6 0
10.2/4=h/12
10.2×12=4×h (cross multiply)
122.4=4h
30.6=h

The ratio is 2.55:1
BaLLatris [955]3 years ago
6 0

you do cross-multiply:

10.2(12)= 122.4

4(h)=4h

4h=122.4

h=30.6

if h is 30.6, it will be proportional

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According to the 2000 U.S. Census Bureau, 49.65% of Texas residents were male. Consider the experiment of selecting ten Texans a
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This is the binomial probability distribution.
<span>n = 10 (</span>the number of randomly selected Texans)
<span>p = 0.4965 (t</span>he probability that randomly selected Texan will be male)
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6 0
3 years ago
Find the perimeter of a train of 100 equilateral triangles if the triangles are joined side to side. Each side is one inch long.
yarga [219]

Answer:

102

Step-by-step explanation:

Each triangle will have a perimeter of 3. When joined, the outside triangles will have 2 sides showing, or 2 inches. The middle 98 will only have one free side, or one inch. This means that 98*1 + 2*2 = 102

7 0
3 years ago
tres carpinteros juan alberto y luis se encargaron de hacer 6 mesas iguales por lo que recibieron $600 pesos juan hizo una mesa
cluponka [151]

Answer:

primero divides 600 entre 6 te da 100

entonces cada mesa vale 100 pesos así que

100x1:100 así que a juan le tocan 100 pesos

100x2:200 así que Alberto le tocan 200 pesos

100x3:300 así que a Luis le tocan 300 pesos

<h3>Me das coronita plis</h3>
5 0
3 years ago
How would i do both of these, show work pls
Alex_Xolod [135]

Answer:

-12.5%

-14.29%

Step-by-step explanation:

For #2:

Original price is $2.00, that price decreased by $0.25 is $1.75. First figure out what $0.25 out of $2.00 is as a percent:

0.25/2.00 = 0.125 = 12.5%

Then, since the price DECREASED by $0.25, the percent would be negative.

For #4:

Original price is $3.50, that price decreased by $0.50 is $3.00. Like #2, you need to figure out what $0.50 out of $3.50 is as a percent:

0.50/3.50 = 0.1429 = 14.29%

Then, since the price DECREASED by $0.50, the percent would be negative.

3 0
3 years ago
NEED HELP ON THIS QUESTION ASAP
Katarina [22]

Answer:

Step-by-step explanation:

A+B+C+D=360

A=180 as it half of the circle

B+C+D=180

60+C+90=180

150+C=180

C=180-150=30

The fraction of the circle to region C

30/180=1/6

8 0
4 years ago
Read 2 more answers
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