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2 years ago

Hey can some one help me, Define a variable and write each phrase as an algebraic expression:

Mathematics

1 answer:

Elena L [17]2 years ago

8 0

Answer:

1. d - 6 ft

where d is the width

2. t + 6 h/week

where t is the amount of time per week Theodore studies

3. t’ - 6 a

where t’ is Tracy’s age

4. (k/3) - 2

where k is the points that the panthers scored

Step-by-step explanation:

Write the variable and do the operations as described!

“less than” means subtraction, “more […] than” means addition and “one-third of” means division by 3.

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Y= (x-9) (x+3)

juin [17]

Answer:

y = x² − 6x − 27

Step-by-step explanation:

To distribute, you can use something called FOIL. It stands for First, Outer, Inner, Last.

First, multiply the First term in each factor.

x · x = x²

Now multiply the Outer terms in each factor.

x · 3 = 3x

Next multiply the Inner terms in each factor.

-9 · x = -9x

Finally, multiply the Last terms in each factor.

-9 · 3 = -27

Add them all up:

x² + 3x − 9x − 27

x² − 6x − 27

4 0

3 years ago

The product of -2 and a number minus 6 is greater than -18

Eduardwww [97]

So product means multiplication so -2*(x-6) > -18 so divide by -2 on both sides to get x-6<9 because when you multiply a negative the sign swaps directions and then add 6 to get x<15

8 0

2 years ago

An electric bill in May was $112.00. In June, the bill was $163.00. What is the percent of increase, rounded to the nearest tent

laila [671]

Answer:

d. 45.5%

Step-by-step explanation:

7 0

3 years ago

What value of n makes the equation true? (2x^9y^n)(4x^2y^10)=8x^11y^20

Komok [63]

Hi there! The answer is n = 10.

$(2 {x}^{9} {y}^{n} )(4 {x}^{2} {y}^{10} ) = 8 {x}^{11} {y}^{20}$

As you see at the powers of x, we need to add the exponents of the power we when multiply them.
${x}^{9} \times {x}^{2} = {x}^{9 + 2} = x {}^{11}$

The powers of y work the same way.
${y}^{n} \times {y}^{10} = {y}^{n + 10} = {y}^{20}$

Hence, n = 10, since
${y}^{10 + 10} = {y}^{20}$

8 0

3 years ago

Hector has a bag of colored candies with the following colors: 12 orange, 4 yellow, 10 green, 4 red, 8 blue, 7 purple, and 11 pi

Dmitry_Shevchenko [17]

Answer:

10/13

Step-by-step explanation:

total candies = 62

yellow and green candies = 20

P (yellow or green candies) = 20/62

=> 10/13

7 0

2 years ago