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Lisa [10]
3 years ago
7

Don’t understand, need help

Mathematics
1 answer:
just olya [345]3 years ago
3 0

Answer:

30

Step-by-step explanation:

30 x 3 90

30 x 2 60

30 x 1 30

90+60+30

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Ipatiy [6.2K]
A.) 10x + 7.5 (0) =420
10x = 420
420 / 10 = 42

x = 42 > ( 42,0 )

10(0) + 7.5y = 420
7.5y = 420
420 / 7.25 = 56

y = 56 > ( 0,56 )

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B.) The x intercept means that there was 42 ,minutes spent biking. The y intercept means that there was 56 minutes spent in line skating.

C.) (21 ,28) - (14,37) - (28,18)
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3 years ago
A glass is 1 3 full. Then 40cm3 of orange juice is poured in. The glass is now 5 7 full. What is the total volume of the glass?
Effectus [21]

Answer:

V= 105cm^3

Step-by-step explanation:

V=volume

(1/3)V+40=(5/7)V

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(8/21)V=40

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V=21*5

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3 0
3 years ago
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How many ML are in 7L
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Hello,
7l=7×1000=7000 ml

Bye :-)
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4 years ago
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IF YOU ARE SMART DO THIS PROBLEM NOT PEOPLE WHO DONT WANN HELP
Alexxandr [17]

Answer:

3.28ft

Step-by-step explanation:

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