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3 years ago

HURRY PLS 7TH GRADE MATH I NEED HELP I HAVE LESS THAN 5 MINS TO DO THIS

Mathematics

1 answer:

Harrizon [31]3 years ago

5 0

Answer:

35 = 8 + x + x + x + x + x +x

35 = 8 + 6x

6x + 8 = 35

35 - 8 = 6x

Step-by-step explanation:

hope this helps:)

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What is the solution of 2m=-6n-5 when n=1,2,3

Travka [436]

Answer:

Step-by-step explanation:

Simplifying

2m + -6n + 5n + 3m = 0

Reorder the terms:

2m + 3m + -6n + 5n = 0

Combine like terms: 2m + 3m = 5m

5m + -6n + 5n = 0

Combine like terms: -6n + 5n = -1n

5m + -1n = 0

Solving

5m + -1n = 0

Solving for variable 'm'.

Move all terms containing m to the left, all other terms to the right.

Add 'n' to each side of the equation.

5m + -1n + n = 0 + n

Combine like terms: -1n + n = 0

5m + 0 = 0 + n

5m = 0 + n

Remove the zero:

5m = n

Divide each side by '5'.

m = 0.2n

Simplifying

m = 0.2n

7 0

3 years ago

Please look at the screenshot it has my question.

shepuryov [24]

Answer:

6.25 mins (6 minutes 15 seconds)

Step-by-step explanation:

96 tests = 2mins

300 tests = x mins

X = 2/96 x 300

X = 6.25 mins

3 0

3 years ago

The volume of a cylinder is represented by the equation V Tarah, where V is the

Illusion [34]

Answer:

$r=\sqrt{\dfrac{3V}{\pi h}}$

Step-by-step explanation:

The volume of a cylinder is given by :

$V=\dfrac{1}{3}\pi r^2h$ .....(1)

Where

r and h are the radius and the height of the cylinder.

We need to solve the equation of r. Cross multiplying both sides in equation (1).

$3V=\pi r^2h$

Dividing both sides by $\pi h$ . So,

$\dfrac{3V}{\pi h}=\dfrac{\pi r^2h}{\pi h}\\\\r^2=\dfrac{3V}{\pi h}\\\\or\\\\r=\sqrt{\dfrac{3V}{\pi h}}$

So, the radius of the cylinder is equal to $\sqrt{\dfrac{3V}{\pi h}}$ .

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3 years ago

Witch is a factored form of the expression 18+12 HURRY PLS

rodikova [14]

It’s going to be H 3+2

4 0

3 years ago

Read 2 more answers

One lap around a track is 1/4 mile. If it takes Mrs. Murphy 1/10 hour to walk 1 lap, what is her walking speed in miles per hour

Stolb23 [73]

Answer:

The speed of Murphy to cover one lap is $\dfrac{1}{40}$ miles per hour .

Step-by-step explanation:

Given as :

The total distance of one lap around track = d = $\dfrac{1}{4}$ miles

The time taken by Murphy to walk one lap = t = $\dfrac{1}{10}$ hours

Let The speed of Murphy = s miles per hour

<u>Now, According to question</u>

Speed = Distance × Time

Or, s = d × t

Or, s = $\dfrac{1}{4}$ miles × $\dfrac{1}{10}$ hours

Or, s = $\dfrac{1\times1}{4\times 10}$ mi/h

Or, s = $\dfrac{1}{40}$ mi/h

So,The speed of Murphy = s = $\dfrac{1}{40}$ miles per hour

Hence, The speed of Murphy to cover one lap is $\dfrac{1}{40}$ miles per hour . Answer

4 0

3 years ago