Can someone help me whit this?!?

Answers

Answer 1

Answer: The answer would be 40 because if you take the the line in which angle b is in it would be 180 and then we would subtract 140 which gives you 40 , good luck ! :)

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Whether 750 is divisible by 5?

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Answer:

Yes, 750 is divisible by 5

Step-by-step explanation:

The number 750 is divisible by 5, because any number that ends in '0' or '5' can be divided by 5. For example, 390 could be divided by 5, as well as 85, 955, 210, or even 23,447,980. Try it!

What have been the major turning points in algebraic knowledge trough out history?

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There are a lot of turning point in the history of algebra one of those is the discovery of the plain and the quadrants by Rene Descartes. This discovery paved way to a lot of knowledge which was later on use in solving other complicated mathematical problems.

last week, Donnell practiced the piano 3 hours longer than Marcus. Together, Marcus and Donnelly practiced the piano for 11 hours. For how many hours did each young man practice the piano?

Answers

Donnell practiced for 7 hours while Marcus practices the piano for 4 hours.

How to form an equation?

Determine the known quantities and designate the unknown quantity as a variable while trying to set up or construct a linear equation to fit a real-world application.

In other words, an equation is a set of variables that are constrained through a situation or case.

Let's say the number of hours piano played by Donnell is D while by Marcus is M.

Then,

Since Donnell practiced the piano 3 hours longer than Marcus.

D = 3 + M ⇒ D - M = 3

And,

Together, Marcus and Donnelly practiced the piano for 11 hours.

D + M = 11

By adding

2D = 14

D = 7

And,

M = 11 - 7 = 4

Hence "Donnell practiced for 7 hours while Marcus practices the piano for 4 hours".

For more about the equation,

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Let the number of hours Donnell practiced be d
and the number of hours Marcus practiced be m.
We can set up a system of equations.
d = m + 3
m + d = 11
Substitute the value of d that's in the first equation, into the second equation.
m + (m + 3) = 11
2m + 3 = 11
2m = 8
m = 4
Marcus practiced for 4 hours. Since Marcus and Donnell, together, practiced 11 hours, Donnell practiced for 11-4=7 hours.

the volume of a sphere is 950 cubic inches. use the formula for the volume of a sphere, V= 4/3(3.14)(r)ratical 3, to find the radius r to the nearest tenth of an inch.

Answers

Given:
Volume = 950 cubic inches

V = 4/3 π r³ ; where π = 3.14

950 in³ = 4/3 * 3.14 * r³
950 in³ = 4.19 * r³
950 in³ ÷ 4.19 = r³
226.73 in³ = r³
∛226.73 in³ = ∛r³
6.09 = r

The radius is 6.09 or 6.10 inches.

type the equation that shows the relationship between the variables in this chart: x: 1,2,3,4,5 and y: 7,14,21,28,35

Answers

It seems as though when the x value is multiplied by 7, you result in the y values (ex. 1*7 = 7). So you could say y = 7x.

Final answer:

The linear equation that represents the relationship between the variables in the given chart is y = 7x. This is because for every increase of 1 in the x-variable, the y-variable increases by 7, indicating a linear relationship.

Explanation:

The type of equation that shows the relationship between the variables in the chart with x: 1,2,3,4,5 and y: 7,14,21,28,35 is a linear equation. In this case, for every increase of 1 in the x-variable, the y-variable increases by 7. This indicates a direct relationship.

The equation can therefore be presented in the form y = mx + b where 'm' represents the slope of the line (the amount y changes for each unit increase in x), and 'b' represents the y-intercept (the value of y when x = 0).

In this case, the y increases by 7 for each 1 increase in x, therefore m = 7. As the series starts from 7 when x = 1 (not 0), the y-intercept is 0 (since there is no decrease by going back to x = 0), therefore b = 0. This leaves us with the equation y = 7x + 0 which simplifies to y = 7x.

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John has two open packs of paper. One pack has 31 pieces of paper. The second pack has 45 pieces of paper. How many pieces of paper does John have all together?

Answers

Hey, Taelyr123!
Pack 1=31
Pack 2=45
31+45=76 pieces of paper!
I hope this helps:)

Answer:

Step-by-step explanation:

76 is correct. "All together" indicates addition.

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