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3 years ago

Hell me plz, and can plz explain as well

Mathematics

1 answer:

Montano1993 [528]3 years ago

7 0

The sixth graders collected $250 of their $300 goal. The seventh graders collected $250 of thier $450 goal.

Sixth Graders:
$250 / $300
Reduce: $25 / $30 = 5/6

Seventh Graders:
$250 / $450
Reduce: $25 / $45 = 5/9

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What is the value of t in the following equation?

lidiya [134]

Answer: $44.85

Step-by-step explanation:

$14.95x3

5 0

3 years ago

The volume of a sphere is 5000 pi m 3 what is the surface area

Nikitich [7]

$V = \frac{4}{3}\pi r^3
\\ 5000\pi = \frac{4}{3} \pi r^3
\\ 5000 = \frac{4}{3} r^3
\\ \frac{3}{4} * 5000 = r^3
\\ 3750 = r^3
\\ r = 15.536
\\ SA = 4 \pi r^2
\\ SA = 4\pi (15.536)^2
\\ SA = 3033.11$

8 0

3 years ago

What is the value of p in the equation shown? <br> 3<br> p =-0.027

Art [367]

Answer:

According to the question,

3p=-0.027

By transposing '3' to the RHS, we get

p=0.027/3

= p=-0.009

So in this question p=-0.009

4 0

3 years ago

What are the x-intercept and y-intercept of the line passing through (0,-3) and (5,0)

Butoxors [25]

Answer:

y-intercept: (0, -3)

x-intercept: (5, 0)

Step-by-step explanation:

Trick question! The problem gives you the x and y intercepts. x intercept is when y is 0, and y intercept is when x = 0!

3 0

3 years ago

The mean length of 7 planks of wood is 1.35m. When an extra plank of wood is added, the mean length of a plank of wood increase

azamat

Answer: Hello There!................

Mean = Sum of observation / total number of observation

Mean = 1.35m

1.35 = Sum of length of 7 wood planks/ 7

1.35*7 = Sum of the length of 7 wood planks

9.45 = Sum of the length of 7 wood planks

Let the length of extra added wood plank = x

So,

(Sum of the length of 7 wood planks + x) / 8 = 1.4m

(9.45 + x) / 8 = 1.4

9.45 + x = 1.4 * 8

9.45 + x = 11.2

x = 11.2- 9.45

= 1.75

So,

The length of extra added wood plank = 1.75m

Step-by-step explanation:

Mark me brainest please. Hope this helps. Anna ♥

6 0

2 years ago