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KiRa [710]
3 years ago
6

What is the answer to 3(x^2-8x-7)

Mathematics
2 answers:
rewona [7]3 years ago
5 0
3x^2-24x-21 would be your answer
Gelneren [198K]3 years ago
3 0
3x x +3 x 2 + 3 x 8x + 3 x 7 ( x is a termen)
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The cost of pumpkin seeds is proportional to
zheka24 [161]

Answer:

Part 1) The unit rate is  \$0.25\ per\ ounce

Part 2) A 56 ounce bag of pumpkin  Seeds cost $14.00

Step-by-step explanation:

Part 1) What is the unit rate  for the pumpkin seeds?

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form k=\frac{y}{x} or y=kx

Let

y ----> the cost of pumpkin seeds in dollars

x ---> the weight in ounces

we have

For x=24 ounces, y=$6

Find the value of the constant of proportionality k

k=\frac{y}{x}

substitute the values

k=\frac{6}{24}=\$0.25\ per\ ounce

The unit rate is the same that the constant of proportionality k

therefore

The unit rate is

\$0.25\ per\ ounce

Part 2) How much would 56. ounce bag of pumpkin seeds cost?

we know that

The linear equation is equal to

y=0.25x

For x=56 ounces

substitute in the linear equation and solve for y

y=0.25(56)=\$14.00

6 0
3 years ago
Given the following expression, what is the rate of decay (write in decimal form, not as a percentage)? 15000 (.87)^7​
34kurt

Answer:

0.87

Step-by-step explanation:

y = ab^x

b is the rate of decay if it is between 0 and 1. Here, b = 0.87.

Answer: 0.87

6 0
2 years ago
The cost of 28 pounds horse feed is 63.28 what is the per pound of horse feed
Bas_tet [7]
$2.26 pounds of horse feed
8 0
2 years ago
jen uses 8.2 of blue paint and white paint to paint her bedroom walls. 4/5ths of this amount is blue paint, and the rest is whit
lara31 [8.8K]

Answer:

The amount of white paint Jen used to paint the walls in her room is:

  • <u>1.64 pints.</u>

Step-by-step explanation:

To solve the exercise you only have to pay attention to the statement, in the section that says that 4/5 parts of the total painting is blue, therefore, if 1 is the total painting, you must do a subtraction:

  • 1 - 4/5 = 1/5

Since the remaining white paint is 1/5 of the total, you have two ways to solve the exercise: multiply the total paint (8.2 pints) by 1/5 or divide the number by 5, as shown below:

  • <u>Amount of white paint = 8.2 pints * (1/5) = 1.64 pints. </u>
  • <u>Amount of white paint = 8.2 pints / 5 = 1.64 pints. </u>

As you can see, the two methods provide a <u>value of 1.64 pints, which corresponds to 1/5 of the total paint and is the amount of white paint used</u>.

5 0
3 years ago
Kyle has 64 baseball cards and must give away 1/4 of his figures away. How many cards will Kyle give away? What fractions of his
Dafna11 [192]

kyle regalara 16 figuras y le quedara 3/4 de ellas

4 0
2 years ago
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