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notsponge [240]
3 years ago
11

Please help! 15 points!! brainliest if right

Mathematics
1 answer:
Stels [109]3 years ago
7 0

Answer:

a)7x-3x

b)4+28y

Step-by-step explanation:

first one follow bidmas

2nd one just do 4 times 1 =4 and 7y times 4 equals 28y

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Elimination Method 7x=3y+45 4x+5y=19 (Show it step by step please!)
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4(6)+5y=19\\\\24+5y=19\qquad\text{subtract 24 from both sides}\\\\5y=-5\qquad\text{divide both sides by 5}\\\\\boxed{y=-1}\\\\Answer:\ \boxed{x=6\ and\ y=-1}

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3 years ago
The typical soft drink can in the U.S. has a volume of 355 cm3. The two circular ends cost $0.0006 per cm2 each (because they ar
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3 years ago
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On a snowy day 85% of the students of Wilson high school were present. If 572 of the students were present, how many students we
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Answer:

673

Step-by-step explanation:

okay so uh this is my way and the answer works so like yea teachers dont show like this but ii figured this works

okay so

85/100 = 572/?

so if you divide 85 by 85 its gonna equal 1 and 1 times 100 is gonna be 100

useing the same concept, it should be the same with 572 , but instead of divideing by 572, divide by 85.

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7 0
2 years ago
Read 2 more answers
Please help out !!!!
evablogger [386]

Answer:

x  = 8

Step-by-step explanation:

you have similar triangles here

so     2 is to 4  as  4 is to x

2/4 =  4/x

x = 8

8 0
3 years ago
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