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3 years ago

Anyone can y’all help me. What’s the mistake in this? And what’s N actually equal to?

Mathematics

1 answer:

PSYCHO15rus [73]3 years ago

4 0

Answer:

n = -1

Step-by-step explanation:

you've accidently substracted 6n from 12n when you were supposed to be adding them. (-6n becomes +6n when brought to the otherside of the equal sign)

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5th grade math. Correct answer will be marked brainliest

Ivanshal [37]

Answer:

3,5

Step-by-step explanation:

7 0

2 years ago

125.7-1.82 plzz include steps

Talja [164]

You just subtract it 125 - 1.82 and it gives you 123.88. i dont know how else to explain

4 0

2 years ago

Solve the system of equations using the substitution method.

Delicious77 [7]

Answer:

$x = 14$

$y = -3$

Step-by-step explanation:

Given

$2x + 8y =4$

$x = -3y + 5$

Required

Solve

Substitute $x = -3y + 5$ in $2x + 8y =4$

$2(-3y + 5) + 8y =4$

Open bracket

$-6y + 10 + 8y =4$

Collect like terms

$-6y + 8y =4-10$

$2y =-6$

Divide both sides by 2

$y = -3$

Substitute $y = -3$ in $x = -3y + 5$

$x = -3 * -3 + 5$

$x = 9+ 5$

$x = 14$

8 0

3 years ago

All right triangles are :

uranmaximum [27]

I think that it’s A, Perpendicular (correct me if I’m wrong)

4 0

3 years ago

Read 2 more answers

Một ủy ban an toàn kiểm tra ngẫu nhiên 900 công nhân xây dựng trong thời gian làm việc, thấy có 48 công nhân không mang mũ bảo h

Usimov [2.4K]

Answer:

The percentage of workers not wearing the helmets is 5.3 %.

Step-by-step explanation:

A safety committee randomly examined 900 construction workers during their work, and found that 48 workers were not wearing helmets. Estimate the percentage of workers who do not wear protective masks during their working time with 98% confidence

total workers = 900

Not wearing helmet = 48

Percentage which are not wearing the helmets

= $\frac{48}{900}\times 100 = 5.3 %$ %

6 0

3 years ago