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Butoxors [25]
2 years ago
15

1. to replace a variable in a mathematical expression with an actual value

Mathematics
2 answers:
UNO [17]2 years ago
3 0

Answer:

1. its substitution

2.

3. order of operations

4. variable

5. equation

Step-by-step explanation:

Svetllana [295]2 years ago
3 0
Exactly what he said
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A teacher gave her class two quizzes. 25% of the class passed both quizzes and 40% of the class passed the first quiz. What perc
Tatiana [17]

Answer:

35%

Step-by-step explanation:

40% + 25% = 65% minus that bye 100 you would get 35% the reason the answer isn't 65 is because add 40+25+65=130 which a whole is equal to 100 but if you do 40+25+35= 100 so thr answer is 35% :)

4 0
2 years ago
Use the linear combination method to solve the system of equations.
laiz [17]

Answer:

Figures

figure 2.1

Figure 2.1

figure 2.10

Figure 2.10

figure 2.12

Figure 2.12

figure 2.13

Figure 2.13

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
A circular pond is modeled by the equipment x^2+y^2=225. A bridge over the pond is modeled by a segment of the equation x-7y=-75
makkiz [27]
X² + y² = 225
x - 7y = -75

x = 7y - 75

x² + y² = 225
(7y-75)² + y² = 225
(7y - 75)(7y - 75) + y² = 225
49y² - 525y - 525y + 5625 + y² = 225
50y² - 1050y + 5400 = 0
50(y² - 21y + 108) = 0

y² - 21y + 108 ⇒ (y - 12)(y - 9)

x = 7(12) - 75
x = 84 - 75
x = 9       ⇒ (9,12)

x = 7(9) - 75
x = 63 - 75
x = -12 ⇒ (-12,9)

3 0
3 years ago
Can someone help me please.
bazaltina [42]
The answer is B. And I am not that sure about my answer, but it has to be the correct answer for what you put. THANK YOU!!!!
7 0
3 years ago
Read 2 more answers
Find the greatest common factor of 18 and 34.
Mice21 [21]

Answer:

Greatest common factor (GCF) of 18 and 34 is 2.

Step-by-step explanation:

3 0
2 years ago
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