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ser-zykov [4K]
3 years ago
6

HeLp ASAP I suck at math so someone come here and help pleaseeeeee

Mathematics
1 answer:
Sholpan [36]3 years ago
5 0

These are the answers

1. 30%

2. 85%

3. 84%

4. 28%

5. 40%

6. 35%

7. 65%

8. 28%

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12 boys collected 16 aluminum cans each 15 girls collected 14 aluminum cans how meany cans did the girls collected than the boys
ANEK [815]

Answer:

Step-by-step explanation:

Since the boys collected 16 cans each and there are 12 of them it means they collected 16*12= 192 cans in total

there are 15 girls and each collected 14 cans. Therefore they collected 15*14=210 cans in total

210-192=18 cans the girls collected more than the boys

5 0
3 years ago
3. Solve the equation using square roots. If the equation has no real solution, write
noname [10]
3) x² - 121 = 0

x² = 121

x' = +√121

x' = 11

_______________

x'' = - √121

x'' = -11

Solution ⇒ S{-11 ; 11 } or (x-11)(x+11)

4) 4x² + 144 = 0

4x² = -144

x² = -144 / 4

x² = -36

x = √-36

No solution ⇒ S = ∅

5) z²+10z+21 = 0

Δ = 10² - 4(1)(21)

Δ = 100 - 84

Δ = 16

x' = (-10+4) / 2 = -6/2 = -3

x'' = (-10-4) / 2 = -14/2 = -7

Solution ⇒ S{ -7 ; -3} or (x+3)(x+7)
4 0
3 years ago
The use of the words weary, dreary, and bleak in "The Raven" contribute to:
swat32
The answer is definitely C because the words are very dark and creepy.
3 0
3 years ago
Read 2 more answers
In a particular class, exams are worth 50% of the overall grade, quizzes are worth 30% of the overall grade, homework is worth 1
Paha777 [63]

Answer:

The student's overall grade is 85.79%

Step-by-step explanation:

Given in the question that:

Exam = 50%; Quiz = 30%, Home work = 15% and Class participation = 5%

The total giving us 100%.

A particular student scored the following;

87.9% on exams, 77.8% quiz, 90% Home work and 100%  on class participation

Calculating the percentages the student had for each;

Exam total = 50*0.879 = 43.95% earned

Quiz = 30*0.778 = 23.34% earned

Home work = 15*0.9 = 13.5% earned

Class participation = 5*1 = 5% earned

Total earned = 43.95+ 23.34 + 13.5+ 5 = 85.79%

3 0
3 years ago
YESSSSS! WERE NOT OVER JUST YET I DONT UNDERSTAND THIS MUCH XD PLZ HELP I WILL MARK BRAINLIEST
WARRIOR [948]

Answer:

D) The expression equals 0

Step-by-step explanation:

-8 + 8 = 0

the negative and positive cancel eachother out

5 0
2 years ago
Read 2 more answers
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