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3 years ago

Describe the steps to solve using the Quadratic Formula:

Mathematics

1 answer:

marissa [1.9K]3 years ago

7 0

Answer:

Put the equation into the form ax 2 + bx = – c.

Make sure that a = 1 (if a ≠ 1, multiply through the equation by. before proceeding).

Using the value of b from this new equation, add. ...

Find the square root of both sides of the equation.

Solve the resulting equation.

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The sum of two numbers is 18 the sum of greater numbers and twice the smaller numbers is 25 the numbers

Gnoma [55]

Answer:

the numbers are 7 and 11

Step-by-step explanation:

If you add the smaller to the sum of numbers, you have the sum of the greater and twice the smaller. That is ...

18 + smaller = 25

smaller = 25 -18 = 7

larger = 18 -7 = 11

The two numbers are 7 and 11.

_____

If you like, you can write two equations. Let x and y represent the smaller and larger numbers, respectively.

x + y = 18

2x + y = 25

Subtract the first equation from the second:

(2x +y) -(x +y) = (25) -(18)

x = 7

y = 18-x = 18-7 = 11

The numbers are 7 and 11.

7 0

3 years ago

Tickets to a school play cost $3 for each student and $8 for each parent. What would be the best choice for variable(s) when wri

algol13

Best choice for variables.....I would let students be " s " and parents be " p "

7 0

3 years ago

I need help!! Please help!!

Lady bird [3.3K]

If she got a 100 on her last test the highest her average would be is an 87%

3 0

3 years ago

Describe the relationship between the terms in each arithmetic sequence. Then

shtirl [24]

Answer:

(a) The sum of the previous term and 9

(b) 36, 45, 54

Step-by-step explanation:

Given

Sequence: Arithmetic Progression

$0,9,18,27$

Solving (a): Describe the relationship in each term

First, we calculate the common difference (d)

In arithmetic progression:

$d = T_n - T_{n-1}$

Take n as 2

$d = T_2 - T_{2-1}$

$d = T_2 - T_{1}$

Where

$T_2 = 9\ and\ T_1 = 0$

$d =9-0$

$d =9$

<em>The relationship is: The sum of the previous term and 9</em>

Solving (b): The next three terms

As said in (a) each term is derived from a sum of 9 and the previous term

So, we have:

$Next\ Term = 27 + 9 = 36$

$Next = 36 + 9 = 45$

$Next = 45 + 9 = 54$

Hence, the next three terms are: 36, 45 and 54

4 0

3 years ago

a toy store marks down every toy by 15% in January. How much does a toy cost during January? Use p for the price in December.

satela [25.4K]

A toy cost 0.85p in January.

Step-by-step explanation:

Given,

Mark down in January = 15%

Let,

Price in December = p

Mark down in January = 15% of price in December

Mark down in January = $\frac{15}{100}*p$

Mark down in January = 0.15p

Price of toy in January = Price in December - Mark down

Price of toy in January = p - 0.15p = 0.85p

A toy cost 0.85p in January.

Keywords: mark down, subtraction

Learn more about subtraction at:

#LearnwithBrainly

7 0

3 years ago