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Ghella [55]
3 years ago
7

Solve the system of equations by substitution. Write your solution as an ordered pair

Mathematics
2 answers:
Ksivusya [100]3 years ago
7 0

Answer:

Step-by-step explanation:

Frt

attashe74 [19]3 years ago
6 0
X + 8x = 81
9x = 81, x = 9
y = 8(9), y = 72
Solution: (9, 72)
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Given a circle with measures of (C, d, and r) and a circle with measures of (C', d', and r'), what is C if
Black_prince [1.1K]
C'=1.5
c/c'=d/d'
c/1.5=8
c=12
hope that helps :)

7 0
3 years ago
Jenny says the two expressions 7a – 4 + 3a - 6 and 4a – 10 are<br> equivalent? Is she correct?
zavuch27 [327]

Answer:

no she is wrong

Step-by-step explanation:

7a-4+3a-6=  10a-10 therefore they are not equal

5 0
3 years ago
Read 2 more answers
Geometric mean <br> Pls help thank u
quester [9]

Answer:

Step-by-step explanation:

1). Geometric mean of a and b = \sqrt{a\times b}

   Therefore, geometric mean of 2 and 50 = \sqrt{2\times 50}

                                                                       = 10

2). By geometric mean theorem,

   \frac{JM}{KM}=\frac{KM}{ML}

   \frac{6}{e}=\frac{e}{24}

   e² = 6 × 24

   e = √144

   e = 12

  Similarly, \frac{JL}{KJ}=\frac{KJ}{JM}

   \frac{6+24}{d}=\frac{d}{6}

   d² = 6 × 30

   d = √180

   d = 6√5

   And \frac{JL}{KL}=\frac{KL}{ML}

   \frac{6+24}{c}=\frac{c}{24}

   c² = 30 × 24

   c = √720

   c = 12√5

3 0
3 years ago
Eli sells refrigerators. His base salary is $250 per week, and his commission is $50 for each refrigerator (r) that he sells. He
Mekhanik [1.2K]

Answer:

C and e

Step-by-step explanation:

the 50r represents the commision he receives for each refrigerator he sells, and the 250 is the base salary and it’s bigger than, >, because he needs to earn MORE than 900 and you get D by solving the inequality,  50r >900, r>15

would be amazing if you marked this brainliest :)

5 0
3 years ago
Can you please show work​
stepan [7]

Answer:

A) 3.44 ft²

Step-by-step explanation:

before cutouts, the area was 4 x 4 = 16 ft²

the circles have a diameter of 2 ft each, and a radius of 1 ft

each circle has an area pf (3.14)(1²) = 3.14 ft²

3.14 x 4 = 12.56 ft²

16 - 12.56 = 3.44 ft² left

6 0
3 years ago
Read 2 more answers
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