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3 years ago

A(n) ______ is a letter or symbol that represents some unknown value

Mathematics

2 answers:

Aloiza [94]3 years ago

7 0

Variable like a or x or y

ollegr [7]3 years ago

7 0

The letter is the "x", because is used to represent unknown values. Sometimes the "y" is used too, but the principal is the "x". I hope that helps u.

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Need help with this pls<br> (Show work pls!!)

ICE Princess25 [194]

Answer:

Given below

Step-by-step explanation:

M is Mikey and B is Betty in,

Current ages:

M= x

B= 3x (cuz she is 3 times older)

After 5 years

M= x+5

B= 3x+5 (5 years added to present age)

It says the ages of Betty after 5 years (3x+5) will be twice as much as Mikey (2(X+5))

So,

3x+5 = 2(x+5)

3x+5 = 2x+10

3x -2x = 10-5

x = 5

Therefore,

The current ages are

Betty : 3x = 3*5 = 15

Mikey: 5 (x)

You can verify by checking with the criterias or clues given in the question.. hope this helps..mark as brainiest if this was helpful:)

7 0

3 years ago

1. Write an equation for the line that is parallel to the given line and that passes through the given point.

Aleksandr-060686 [28]

Y-y1=m(x-x1)
y+18=1(x+8)
y=x-10
parallel lines have the same slope

4 0

3 years ago

HELP asap plz<br><br> Solve 2y^2 – 3y = 2

sergejj [24]

Are you solving for x or y?

4 0

4 years ago

Find the slope of the line passing through the points (-5, 3) and (7, 9)

rodikova [14]

$\sf{\red{Answer}}$

$\sf{m = \frac{1}{2} }$

$\sf{\purple{Explanation}}$

$\sf{m = \frac{y_{2}- y_{1}}{m_{2} - m_{1}} }$

$\sf{m = \frac{9- 3}{7- ( - 5)} }$

$\sf{m = \frac{6}{7 + 5} }$

$\sf{m = \frac{6}{12} }$

$\sf{m = \frac{1}{2} }$

3 0

2 years ago

F(x)=1/2x+3; Find f(8)

Shtirlitz [24]

Answer:

Step-by-step explanation:

1/2(8)+3

4+3

f(8)=7

8 0

3 years ago