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3 years ago

Help me please Idk what to do

Mathematics

1 answer:

pshichka [43]3 years ago

4 0

1) Theoretical
2) Experimental
3) Experimental
4) Theoretical
5) Theoretical
6) Experimental

A rough explanation is that theoretical is something that happens once, while experimental happens multiple times.
For example, number 1 happened once by flipping a coin while question 2 was flipped 8 times.

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Rico can walk 3 miles in the same amount of time that Donna can walk 2 miles. Rico walks at a rate 2 miles per hour faster than

tatyana61 [14]

Answer:

$13$

Step-by-step explanation:

Donna's Rate is $R$

Rico's Rate is $R+2$

$\frac{R}{R+2}=\frac{2}{3}$

Cross-Multiply

$2(R+2)=32$

$2R+4=3R$

$4=R$

Donna's Rate is $R=4$

Rico's Rate is $R+2=6$

$\frac{6(130)}{60} = \frac{130}{10}=13$

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3 years ago

You need to solve a system of equations. You decide to use the elimination method. Which of these is not allowed? 2x - 3y = 12

suter [353]

Answer:

Step-by-step explanation:

The Elimination Method is the method for solving a pair of linear equations which reduces one equation to one that has only a single variable.

If the coefficients of one variable are opposites, you add the equations to eliminate a variable, and then solve.

If the coefficients are not opposites, then we multiply one or both equations by a number to create opposite coefficients, and then add the equations to eliminate a variable and solve.

When multiplying the equation by a coefficient, we multiply both sides of the equation (multiplying both sides of the equation by some nonzero number does not change the solution).

So, option B is not allowed (it is not allowed to multiply only one part of the equation)

6 0

3 years ago

No clue what to do for slope , where do i put it ?!!!

Nonamiya [84]

You put the point at (5,0) since it’s rise over run you move 3 up n go 4 to the right

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3 years ago

Each student needs 35 craft sricks for an art project. The art teacher has 7,140 craft sticks. How many students can get craft s

Karo-lina-s [1.5K]

Answer:

204 students

just do 7140/35= 204

Step-by-step explanation:

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3 years ago

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Answer: 66%

Step-by-step explanation:

I took the test on khan.

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3 years ago