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yawa3891 [41]
2 years ago
5

6 to the second power ÷ [(4.3×3)+5.1]

Mathematics
1 answer:
Black_prince [1.1K]2 years ago
8 0
2 is the answer
That’s the answer.
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numerele a, b si c sunt direct proportionale cu 2, 3 si 5. Daca media aritmetica a celor trei numere este egala cu 100, determin
Fynjy0 [20]

Answer:

a = 60

b = 90

c = 150

Step-by-step explanation:

Numerele a, b și c sunt direct proporționale cu 2, 3 și 5.

Unde k este constantă de proporționalitate

a ∝ 2

a = 2k

b ∝ 3

b = 3k

c ∝ 5

c = 5k

Dacă media aritmetică a celor trei numere este egală cu 100, determinați numerele a, b și c

= 2k + 3k + 5k / 3 = 100

= 10k / 3 = 100

Cross Multiply

= 10k = 3 × 100

= 10k = 300

Împărțiți ambele părți la 10

k = 300/10

k = 30

Pentru numărul a

a = 2k

a = 2 × 30

a = 60

Pentru numărul b

b = 3k

b = 3 × 30

b = 90

Pentru numărul c

c = 5k

c = 5 × 30

c = 150

Prin urmare, a = 60, b = 90, c = 150

3 0
3 years ago
Help me plzzzzzzzzzzzz
jasenka [17]

Answer:

1. 10x^2 -4

2. 2a^5 + 5b

Step-by-step explanation:

1. Simplify 4(x^2 -1) to 4x^2 -4

then add that to 6x^2

2. 4a^5 - 2a^5 = 2a^5 and

4b+b = 5b

6 0
2 years ago
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Kamila [148]

Answer:

9.5 feet

Step-by-step explanation:

15.5-6=9.5

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At the Arctic weather station, a warning light turns on if the outside temperature is below -25 degrees Fahrenheit. Which inequa
Leya [2.2K]

Answer:

t≥-25

Step-by-step explanation:

this is becuaset ≥ -25 shows that it can not fall under -25, but can be equal to -25.

8 0
2 years ago
Brett bought three pairs of jeans and five polo shirts. the jeans that regularly sell for 79$ were 35% off and the polo shirts t
artcher [175]
The change he got back was $30.20
4 0
3 years ago
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