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Fofino [41]
2 years ago
13

75 - 3m in a word problem

Mathematics
2 answers:
egoroff_w [7]2 years ago
7 0

Answer:

75 - 3m = Seventy five less than three times a number.

Step-by-step explanation:

We are given an algebraic expression 75 - 3m.

We need to write them in word form.

"m" standards for a unknown number which is called a variable.

"-" means less than or subtraction.

3m means "3 times m or 3 times a unknow number"

Therefore, the word form of 75 - 3m is "Seventy five less than three times a number."

Natasha_Volkova [10]2 years ago
4 0
Johnny borrows a lemonade stand from Tom for M days at the price of $3 a day. How much would he make in total, if he made $75 a day?
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Since t is number of days not the hours so t will not use decimal or fraction values. It can use integer values for the number of days.

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Hence answer for the type of domain can be positive integers or you can say integers greater than or equal to 0.


4 0
2 years ago
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Shanelle already has $137 from babysitting. She needs at least $625 for a new tablet. Which inequality best represents this scen
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Answer:

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Step-by-step explanation:

Shanelle already have in her possession the sum of $137 from babysitting.  She requires at least $625 for a new tablet. t is the remaining amount she needs to get the new tablet.

She already has $137 and to get the tablet she needs at least $625 . This means she needs nothing less than or equal to $625 to get the tablet.  Recall t is the remaining amount needed to add to what she has to be able to reach the least amount required to purchase a tablet. Therefore , the sum of t and the amount of money already in her possession should be equal to or greater than $625.

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2 years ago
The solutions to the linear differential equation d2u/dt2 = u form a vector space (since combinations of solutions are still sol
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Serious high school. This is one of the few differential equations I can solve.

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The arbitrary linear combination spans the solution space:

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2 years ago
Which shows the correct substitution of the values a, b, and c from the equation 0 = – 3x2 – 2x + 6 into the quadratic formula?
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Answer:

x = StartFraction negative (negative 2) plus or minus StartRoot (negative 2) squared minus 4 (negative 3)(6) EndRoot Over 2(negative 3) EndFraction

Step-by-step explanation:

we know that

The formula to solve a quadratic equation of the form ax^{2} +bx+c=0 is equal to

x=\frac{-b(+/-)\sqrt{b^{2}-4ac}} {2a}

in this problem we have

0=-3x^{2}-2x+6  

so

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substitute in the formula

x=\frac{-(-2)(+/-)\sqrt{-2^{2}-4(-3)(6)}} {2(-3)}

therefore

x = StartFraction negative (negative 2) plus or minus StartRoot (negative 2) squared minus 4 (negative 3)(6) EndRoot Over 2(negative 3) EndFraction

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