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3 years ago

Write an equation that requires at least three steps to solve and whose solution is x=3.5

Mathematics

1 answer:

lidiya [134]3 years ago

5 0

Answer:

(2x)^2 + 1 = 50

Step-by-step explanation:

x = 3.5

2x = 7 (1 step)

(2x)^2 = 49 (2 steps)

(2x)^2 + 1 = 50 ( 3 steps)

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Diego‘s mother is twice as old as he is. She is also as old as the sum of the ages of Diego and both of his younger twin brother

Pavel [41]

Diego's age is 22
And his mother's age is 42

5 0

3 years ago

What’s the correct answer for this?

Mashutka [201]

Answer:

Step-by-step explanation:

The equation of circles is

(x-a)²+(y-b)²=r²

Where

Center = (a,b) = (-6,-3) and r = 12

Now

The equation becomes

(x+6)²+(x+3)²=144

4 0

3 years ago

£70 is divided between Natasha, Richard & Stephen so that Natasha gets twice as much as Richard, and Richard gets three time

Korvikt [17]

The share of Natasha is £ 42

<em><u>Solution:</u></em>

£70 is divided between Natasha, Richard & Stephen

Total amount = 70

Let the share of natasha be "x"

Let the share of richard be "y"

Let the share of stephen be "z"

Natasha gets twice as much as Richard

x = 2y ------ eqn 1

Richard gets three times as much as Stephen

y = 3z

$z = \frac{y}{3}$ ----- eqn 2

Total amount = 70

share of natasha + share of richard + share of stephen = 70

x + y + z = 70

Substitute eqn 1 and eqn 2

$2y + y + \frac{y}{3} = 70\\\\\frac{6y+3y+y}{3} = 70\\\\10y = 210\\\\y = 21$

Substitute y = 21 in eqn 1

x = 2y = 2(21) = 42

x = 42

Thus natasha gets £ 42

6 0

3 years ago

PLEASE HELP PLEASE I WILL GIVE 20 POINTS AND BRAINLIEST The club will base its decision about whether to increase the budget for

iren2701 [21]

Answer:

They should in crease budget.

Step-by-step explanation:

divide each number by 2 to see how often they go equally/use the data table you have available of the two climbers.

5 0

3 years ago

HELP HELP HELP<br><br> Just 5 quick algebra 1 questions for 50 points!

riadik2000 [5.3K]

1. x = a

2. y = b

3. It has an undefined slope.

4. You can either use, rise/run or change in y / change in x.

5. Rewrite the given equation in slope-intercept form, then determine the y-intercept, b, of the line.

<h3>What is the Equation of a Line?</h3>

Equation of a line with m as slope and b as y-intercept is given as: y = mx + b.

1. Vertical lines have undefined slope. This implies that, for a given point, (a, b), the equation that models the line would be expressed as x = a, where a is the x-intercept.

Vertical line equation is: x = a.

2. Horizontal lines have 0 as a slope value, therefore, given (a, b), the equation that models the line is: y = b.

3. Equation for a vertical line cannot be written in slope-intercept form because the slope for a vertical line is undefined.

4. Using the following, rise/run or change in y / change in x, the slope (m), can be calculated given the coordinates of two points on a line.

5. To find an equation in point-slope form, e.g. y - 3 = 6(x - 4), rewrite the equation in slope-intercept form:

y - 3 = 6x - 24

y = 6x - 24 + 3

y = 6x - 21

The y-intercept, b, is: -21.

Therefore, the coordinate of the y-intercept would be: (0, -21).

Learn more about the equation of a line on:

brainly.com/question/13763238

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4 0

2 years ago