1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
grin007 [14]
3 years ago
7

can you write an equation by setting an expression equal to itself. would an equation like this be true

Mathematics
2 answers:
Rashid [163]3 years ago
8 0

Of course !  An expression is <u>always</u> equal to itself.

But if there's, say, an 'x' in the expression, then such an equation would be true
for x=every possible number.  You might say it has an infinite number of solutions ...
which certainly has to be true, because no matter what you do to an expression,
it's still always equal to itself !

 
tensa zangetsu [6.8K]3 years ago
4 0
Yes it would be as long as it truly equals eachother
You might be interested in
A jar contains n nickels and d dimes. There is a total of 253 coins in the jar. The value of the coins is $15.95. How many nicke
defon

There are 187 nickels and 66 dimes in the jar.

Step-by-step explanation:

Given,

Total coins = 253

Value of coins = $15.95 = 15.95*100 = 1595 cents

Value of each nickel = 5 cents

Value of each dime = 10 cents

According to given statement;

x+y=253     Eqn 1

5x+10y=1595     Eqn 2

Multiplying Eqn 1 by 5

5(x+y=253)\\5x+5y=1265\ \ \ Eqn\ 3

Subtracting Eqn 3 from Eqn 2

(5x+10y)-(5x+5y)=1595-1265\\5x+10y-5x-5y=330\\5y=330

Dividing both sides by 5

\frac{5y}{5}=\frac{330}{5}\\y=66

Putting y=66 in Eqn 1

x+66=253\\x=253-66\\x=187

There are 187 nickels and 66 dimes in the jar.

Keywords: linear equation, elimination method

Learn more about elimination method at:

  • brainly.com/question/12905000
  • brainly.com/question/12918501

#LearnwithBrainly

5 0
3 years ago
PLEASE PLEASE HELP! Find the measure of APB^.
Whitepunk [10]

Answer:

65°

Step-by-step explanation:

Radii CA and CB are perpendicular to tangent lines AT and BT, so

\angle CAT=\angle CBT=90^{\circ}

Since angle BAT is equal to 65°, angle CAB has measure

\angle CAB=90^{\circ}-65^{\circ}=25^{\circ}.

Consider triangle ACB. This triangle is isosceles, because CA=CB as radii of the circle. Two angles adjacent to the base are congruent, thus

\angle CBA=\angle CAB=25^{\circ}

The sum of the measures of all interior angles in triangle is always 180°, so

\angle CAB+\angle CBA+\angle ACB=180^{\circ}\\ \\25^{\circ}+25^{\circ}+\angle ACB=180^{\circ}\\ \\\angle ACB=130^{\circ}

Angle ACB is central angle subtended on the minor arc AB, angle APB is inscribed angle subtended on the same minor arc AB. The measure of inscribed angle is half the measure of central angle subtended on the same arc, so

x=\angle APB=\dfrac{1}{2}\cdot 130^{\circ}=65^{\circ}

8 0
3 years ago
Which of the following is a solution to the linear function y = 4/5x+7
lilavasa [31]
I think it’s X= -35/4
7 0
3 years ago
Line e passes through points (7, 8) and (4, 10) Line f is parallel to line e. What is the slope of line f?
Tatiana [17]
<h3>Answer:  -2/3</h3>

==================================================

Explanation:

Use the slope formula to find the slope of line E

m = (y2-y1)/(x2-x1)

m = (10-8)/(4-7)

m = 2/(-3)

m = -2/3

The slope of line E is -2/3

The slope of line F is also -2/3 since parallel lines have equal slopes but different y intercepts.

8 0
3 years ago
The table shows the fees david charges for yard work
Doss [256]
157= one hundred and fifty seven
3 0
2 years ago
Other questions:
  • The length of XY the minor arc is 48 cm what is the circumference of Z
    14·2 answers
  • the probability of Tina's winning a tennis game is 75%. What is the probability that Tina will lose a game
    12·2 answers
  • 3.5d + 6.25 = 1 + 5.25d<br><br> The solution is d =
    6·1 answer
  • A company distributes college logo sweatshirts and sells them for $50 each. The total cost function is linear, and the total cos
    14·1 answer
  • Solve -52=4m for m. m=n
    10·2 answers
  • PLEASE HELP!!! DESPERATE!!!<br> MATHS!!!<br> WILL AWARD BRAINLIEST!!!
    13·1 answer
  • 6 pizzas cost $16 What will 4 pizzas cost
    13·2 answers
  • Graph the system of equations on graph paper to anwser the question y=1/3x-2 y=-3x-12
    9·1 answer
  • What is the value of 7/10 divided by 3/8
    8·1 answer
  • Find the distance between the points. Round to two decimal places if necessary.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!