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xeze [42]
2 years ago
6

can somebody help me with these 4 questions I will give brainliest to anybody who answers them correctly

Mathematics
1 answer:
labwork [276]2 years ago
7 0

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I need help on my math homework
xxTIMURxx [149]

Answer: the first one is True and the second one is false

Step-by-step explanation:

3 + 5x = 23

so replace x with 4 you get 3 + 5 * 4 = 3 + 20 = 23

this is equal to 23 so it is true

2x - 6 = 9

do the same you get

2 * 8 - 6 = 9

16 - 6 = 10

the answer is 10 not nine therefore it is false

7 0
3 years ago
Simplify this problem . Please help
s2008m [1.1K]
5x^4 / y^5 is your answer
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2 years ago
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What is the volume of a cube with an edge length of 4.5 centimeters? Enter your answer, as a decimal, in the box.
givi [52]

Your answer would be V ≈ 91.13cm³

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3 years ago
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malcolm spent 85.43on wall paper,21 on paint,and 7.84 on brushes and other supplies to red econade a bathroom. he gave the clerk
makkiz [27]
120-114.27=5.73 Add the numbers, then subtract 120 from them.
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3 years ago
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A chess club has 480 members but is losing 30 members each year. A computer club has 130 members and is gaining 20 members per y
Alexxandr [17]

Answer:

The two clubs will have the same number of members after 7 years

Step-by-step explanation:

Let the number of years is x

∵ A chess club has 480 members but is losing 30 members each year

∵ The number of years = x

∴ The total members after x years = 480 - 30x ⇒ (1)

∵ A computer club has 130 members and is gaining 20 members per year

∵ The number of years = x

∴ The total members after x years = 130 + 20x ⇒ (2)

∵ The two clubs will have the same number of members after x years

→ Equate (1) and (2)

∴ 480 - 30x = 130 + 20x

→ Add 30x t both sides

∵ 480 - 30x + 30x = 130 + 20x + 30x

∴ 480 = 130 + 50x

→ Subtract 130 from both sides

∵ 480 - 130 = 130 - 130 + 50x

∴ 350 = 50x

→ Divide both sides by 50

∴ 7 = x

∴ The two clubs will have the same number of members after 7 years

8 0
2 years ago
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