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Juli2301 [7.4K]
3 years ago
12

Explain why it does not matter what letter or symbols is use to find an unknown number

Mathematics
2 answers:
Alchen [17]3 years ago
5 0
Because you are trying to find the unknown number right?Well it could stand for anything like how many  kittens you could have that as an o as long as you know what you are looking for
sineoko [7]3 years ago
4 0
The letter or symbol expresses an unknown value. There is no value to a letter or symbol.

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Cost of tickets is 90. 7 adult tickets and 12 kids tickets. Kids tickets 2/3 the adult ticket. How much are adult tickets
STatiana [176]
7x+12y=90
y = 2/3x

15x=90
x = 6
 6 dollars
4 0
3 years ago
Imelda jogs 2 3/4 miles each weekday, Monday through Friday. On Saturday, she logs 2.5 times the daily weekday distance. On Sund
Colt1911 [192]

Answer: 22.6875 miles

Step-by-step explanation:

Monday = 2 3/4 miles = 2.75 miles

Tuesday = 2.75 miles

Wednesday = 2.75 miles

Thursday = 2.75 miles

Friday = 2.75 miles

Saturday = 2.5 × 2.75 = 6.875 miles

Sunday = 0.75 × 2.75 = 2.0625 miles

Total = 2.75 miles + 2.75 miles + 2.75 miles + 2.75 miles + 2.75 miles + 6.875 miles + 2.0625 miles

Total = 22.6875 miles

5 0
3 years ago
What is the value of 20 ÷ (-4)?​
DerKrebs [107]

Answer:

-5

Step-by-step explanation:

20 ÷ (-4)=-5

8 0
3 years ago
7)<br> Which could be solved for x?<br> 2x+ 2<br> B)<br> 3(x+2)<br> 3x+4<br> 3x=12<br> D
dem82 [27]

Answer:

3x=12

Step-by-step explanation:

x=12/3 => x=4

8 0
3 years ago
Can someone help me with this. Will mark brainliest. Thank you.
Murljashka [212]

Answers:

  1. circle
  2. center
  3. radius
  4. chord
  5. diameter
  6. secant

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

Explanations:

  1. Consider a campfire and people surrounding it to warm up. The fire itself is the center of the circle, and the people around it are points on the circle's edge. Assume that each person is the same distance away from the fire. Refer to the diagram below.
  2. We always refer to the circle name by the center point. Think of it being like at the center of the universe, or you could think how the sun is at the center of the solar system. While technically the planets orbit in ellipses and not perfect circles, this idea still could be useful to help remember the naming convention.
  3. If we go back to the example in part 1, the radius is the distance from the campfire to any given person. The radius is half the diameter.
  4. This is not to be confused with the spelling "cord" which refers to wiring used in electronics, or in fabric fibers. If we connected any two campers with a segment, then we formed a chord. Refer back to part 1 above. Any diameter is a chord, but not the other way around.
  5. The diameter is a special type of chord that goes through the center. Note the endpoints of the diameter are on the circle's edge.
  6. A secant line is basically a chord but we've extended both endpoints off infinitely in both directions. A secant cuts the circle at 2 different points. In contrast, a tangent line touches the circle at exactly one point only.

3 0
3 years ago
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