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nirvana33 [79]
3 years ago
5

All the ratios that are equivalent to the ratio 12:3.

Mathematics
1 answer:
taurus [48]3 years ago
8 0

Answer:

Step-by-step explanation:

12:3 = 12 divide by 3 = 4

          3 divide by 3 =  1

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Lisa spends 1/5 of an hour doing her math homework and 1/3 of an hour doing her social studies homework. What fraction of an hou
Sveta_85 [38]
To solve this, all you have to do is add 1/5 and 1/3.
Well, you might be thinking, "But the denominators are not the same! Fractions have to have like denominators in order to be added together!" And you are right. So, all we have to do, is make them both have the same denominator. To do this, we have to multiply both the numerator and denominator by the same number to find an equivalent fraction.
For 1/5, we can multiply both the numerator and denominator by 3, to get 3/15. 
Likewise, we can multiply both the numerator and denominator of 1/3 by 5, to get 5/15.
Now, you can easily add 3/15 and 5/15 because all you have to do is add the numerators, because the denominators are the same!
3/15+5/15=8/15, so she spends 8/15 hour on her math and social studies homework.
Hope I helped!
3 0
3 years ago
Which is the best estimate for the length of the car 4 kilometers 4tons 4kilograms 4meters
Ad libitum [116K]
4 meters

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kilometer is closer to a mile measurement
so the only one that makes sense is 4 meters
3 0
3 years ago
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How many different passwords can be made if it is three letters, followed by two digits, followed by a letter?
ohaa [14]

Infinitely many passwords can be made.

8 0
2 years ago
Help plz!!!!!!!!!!!!!!!!!!!!
RUDIKE [14]
4 Triangles 1/2(6)6()= 18 18x4= 72
5 squares 3X3=9. 5x9= 45

72+45= 117 sq in
5 0
3 years ago
If ∠a = 90°, find the measures of ∠b, ∠c and ∠d.
nydimaria [60]

Answer:

m∠b = 35°

m∠c = 145°

m∠ d = 35°

Step-by-step explanation:

To find m∠b, we use Definition of Supplementary Angles:

180 - (90 + 55) = 35°

To find m∠c, we also use Definition of Supplementary Angles:

180 - 35 = 145°

To find m∠d, we use Vertical Angles Theorem:

m∠b = m∠d = 35°

5 0
3 years ago
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