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Vitek1552 [10]
3 years ago
9

Find the possible values of r in The inequality 5>r-3

Mathematics
2 answers:
Bad White [126]3 years ago
8 0
Any number minus 3 that would have a difference of less than 5
shtirl [24]3 years ago
3 0
R - 3 < 5
r < 5 + 3
r < 8 Answer
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What is the answer to 1/9 + 3/5
hjlf
32/45 is the answer I believe
3 0
3 years ago
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Simplify: 10x-6(7+x)
Basile [38]

Answer:

4 x − 4 2

Step-by-step explanation:

8 0
3 years ago
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The seventh term of an arithmetic progression is equal to twice the fifth term. The sum
mario62 [17]

Answer:

a₁ = - 24

Step-by-step explanation:

The n th term of an AP is

a_{n} = a₁ + (n - 1)d

where a₁ is the first term and d the common difference

Given a₇ = 2a₅ , then

a₁ + 6d = 2(a₁ + 4d) = 2a₁ + 8d ( subtract 2a₁ + 8d from both sides )

- a₁ - 2d = 0 → (1)

The sum to n terms of an AP is

S_{n} = \frac{n}{2} [ 2a₁ + (n - 1)d ]

Given S_{7} = 84 , then

\frac{7}{2} (2a₁ + 6d) = 84

3.5(2a₁ + 6d) = 84 ( divide both sides by 3.5 )

2a₁ + 6d = 24 → (2)

Thus we have 2 equations

- a₁ - 2d = 0 → (1)

2a₁ + 6d = 24 → (2)

Multiplying (1) by 3 and adding to (2) will eliminate d

- 3a₁ - 6d = 0 → (3)

Add (2) and (3) term by term to eliminate d

- a₁ = 24 ( multiply both sides by - 1 )

a₁ = - 24

6 0
3 years ago
2/3 to 8 in simplest form
Nat2105 [25]
2/3 to 8 is the same ratio if we multiply both sides by 3/2 so:
2/3×3/2=1
8×3/2=12
So 1 to 12


7 0
3 years ago
Help please)))))))))))))))))))
timurjin [86]
The giraffe (using the ruler) is 11 cm.

1 cm : 50 cm

Multiply both sides by 11.

11 cm : 550 cm 

There are 0.01 meters in 1 centimeter.

Multiply 550 cm by 0.01.

(550)(0.01) = 5.5

The giraffe's real length is 5.5 meters.
5 0
2 years ago
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