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3 years ago

Find the value of variables in this kite. Can you please show your work

Mathematics

2 answers:

zloy xaker [14]3 years ago

7 0

X = 7, Y = 16.
The bottom 2 lines of the kite are equal, so 2x + 5 = x + 12. Subtract x from both sides, and then subtract 5 from both sides. You end up with x = 7.
You then substitute (put it) this value for x in the top 2 lines ; x + 5 = y - 4. This would equal 7 + 5 = y - 4.
Therefore you add 4 to both sides and you get y = 16.

jasenka [17]3 years ago

3 0

Y=16
X=7
I hope my work shows how I got my answer well enough! :-)

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Pls answer this questionnnn

pickupchik [31]

Jo makes 170 minutes call. There are 150 free ones
170 - 150 = 20
20 minutes are "what Jo has to pay"
Jo sends 182 texts. There are 150 free ones
182 - 150 = 32
32 texts are "what Jo has to pay"

Monthly charge = 16p, 13p for each extra minute, 15p for each extra text.
13(20) = 260p
15(32) = 480p

480p + 260p + 16 = 740p + 16

740p + 16 is your answer (if p = pounds, add 16 to it, i'm not sure what p stands for though. If it is cents, divide 100 from 740 and take out the p, then add total to 16 to get answer.)

hope this helps

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3 years ago

-3x-7 ≤11 solve, please

Rom4ik [11]

Answer:

x ≥ -6

Step-by-step explanation:

-3x-7 ≤ 11

-3x-7+7 ≤ 11+7

-3x ≤ 18

(-3x)(1) ≤ 18(-1)

3x ≤ -183x/3 ≤ -18/3

7 0

3 years ago

Find the inverse of the function f(x) = (x - 4) 2 - 5 if x ≥ 4.

Serggg [28]

Same here, we do a quick switcharoo on the variables first,

$\bf \stackrel{f(x)}{y}=(x-4)^2-5\qquad inverse\implies \boxed{x}=\left( \boxed{y}-4 \right)^2-5
\\\\\\
x+5=(y-4)^2\implies \pm\sqrt{x+5}=y-4\implies \pm\sqrt{x+5}+4=y$

6 0

3 years ago

Four expressions are shown below:

ivanzaharov [21]

Answer: The correct answer is number 4.

Step-by-step explanation: First, solve the (). 7x + x or 7x + 1x = 8x. Now, you have 4(8x + 2). That would be the first choice, A. But what about the second one? Well, 4 x 8x would be 32x, and 4 x 2 would be 8. Now put that together. 32x + 8. Is there an expression like that? Yes, there is. Choice C. Now that means choice A and C are equivalent to 4(7x + 2 + x). Only number 4 holds those choices, so your answer would be number 4. Hope this helped! :)

8 0

3 years ago

Maru [420]

First, we have to understand the slope-intercept form.

$\large \boxed{y = mx + b}$

A linear function/equation has three forms and the slope-intercept is one of the form. It is also commonly used in Function topic while the other two forms are commonly used in Analytic Geometry.

In the slope-intercept form, the m-term represents the slope while b-term represents the y-intercept of a graph.

Which equation represents a linear function that has a slope of 5 and a y-intercept of -6.

As you notice the bold, italic and underlined words in the question that I quoted or rewrote. I've just explained that the slope is m-term and y-intercept is b-term.

Therefore, substitute m = 5 and b = -6 in the equation.

$\large{y = mx + b \longrightarrow \bold{y = 5x + ( - 6)}} \\ \large \boxed{ \tt{ \purple{y = 5x - 6}}}$

I hope this helps! Let me know if you have any questions regarding the linear function, don't hestitate to ask. Good luck with your assignment and have a nice day!

5 0

3 years ago