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3 years ago

shalyn went to to the movies. She spent 2/5 of her money on a ticket and 3/7 on popcorn. How much did she spend?

Mathematics

1 answer:

adoni [48]3 years ago

8 0

Answer:

She spent 29/35 of total amount she had.

Step-by-step explanation:

Let the amount Shalyn had be x.

She spent 2/5 of her money on a ticket. (i.e 2/5 of x)

She spent 3/7 of her money on popcorn. (i.e 3/7 of x)

So we need to find the total she spent.

i.e Total amount spent =Amount spent on movie ticket + amount spent on popcorn

Total amount spent = 2/5 of x + 3/7 of x

Total amount spent = (2/5 + 3/7 ) of x

Total amount spent = (29/35) of x

So she spent 23/35 of total amount she had.

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Janet researcher compares the math placement scores of college applicants who have, or have not taken a special college preparat

riadik2000 [5.3K]

Answer:

Step-by-step explanation:

Independent Variable (IV): Special college preparation program

How will you describe the IV: Independent variable or known as manipulated variable is a variable where the researcher purposely manipulate the variable to see how it affect the results of the experiment.

Dependent variables (DV): Math placement scores of college applicants

How will you measure the DV: DV can be measured by recording the math placement scores of each applicants who have or have not taken the special college preparation program.

Explanation: In this case, the researcher wants to see how taking special college preparation program (IV) can affect the math placement scores of the applicants (DV). Explanation: In this case, the researcher wants to see how taking special college preparation program (IV) can affect the math placement scores of the applicants (DV).

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If the applicants take the special college preparation program, the applicants will have higher math placement scores compared to the one who have do not take the program.

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3 years ago

Interpret the slope for the situation: The number of people who worked for the railroads in the United States each year from 198

marysya [2.9K]

Answer:

-6.61

Step-by-step explanation:

Unless there is more included in this problem then -6.61 is the slope. Slope is represented as m in y=mx+b. Simply substituting in the slop and y-intercept shows that m=-6.61 or the slope is -6.61.

3 0

3 years ago

Which system of equations can you use to find the roots of the equation? x3 – 10x = x2 – 6 y = x3 – x2 + 10x + 6 y = 0 y = x3 –

Maslowich

Answer:

answer is:

$y=x^{3}-10 x,y=x^{2}-6$

Step-by-step explanation:

we are asked to find which system of equations can we use to find the roots of the equation:

$x^{3}-10x=x^{2}-6$

since the system of equation in last part is given as:

$y=x^{3}-10 x,y=x^{2}-6$

so, on equating both the equations i.e. on equating both the values of 'y' we get the desired equation as:

$x^{3}-10x=x^{2}-6$ .

3 0

3 years ago

Read 2 more answers

Help me in this algebra1 problem

sergeinik [125]

X=kevin
y=steve 
x+y=26 

x=4+y 

(4+y)+y=26
-4 -4 

y+y=22 

2y=22
/2 /2

y=11 

steve ran 11 miles

8 0

3 years ago

Four more than three times n equals -5

Verizon [17]

3n+4=-5

do the opposite of adding 4. this means you have to subtract 4 from 4. whatever you do to the problem, you must do to the answer. now subtract 4 from -5.

-5-4=-9

since 4-4=0, we can take 4 out of the equation. now you have:

3n=-9

now divide -9 by 3

-9/3=-3

n=-3

hope this helps :)

5 0

3 years ago