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AnnZ [28]
3 years ago
9

Can you help with number 18 please?

Mathematics
1 answer:
motikmotik3 years ago
6 0

16.1 - 0.25 = 15.85
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Lucy has some pennies and some nickels. She has a maximum of 15 coins worth a minimum of $0.47combined.If lucky has 6.9999999999
Verdich [7]

Answer:

Step-by-step explanation:

The worth of a penny is 1 cent = 1/100 = $0.01

The worth of a nickel is 5 cents = 5/100 = $0.05

Let x represent the number of pennies that she could have. Lucy has some pennies and some nickels. She has a maximum of 15 coins. If lucky has 6.999999999999999, it means that

6.999999999999999 + x ≥ 15

x ≥ 15 - 6.999999999999999

x ≥ 8

If the 15 coins worth a minimum of $0.47combined, it means that

0.05(6.999999999999999) + 0.01x ≤ 0.47

0.35 + 0.01x ≤ 0.47

0.01x ≤ 0.47 - 0.35

0.01x ≤ 0.12

x ≤ 0.12/0.01

x ≤ 12

Therefore, the possible values for the number of pennies that she could have is 8 ≤ x ≤ 12

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3 years ago
Simplify the expression:<br> 2x+1bx8
denis-greek [22]

Answer:

2x+8b

Step-by-step explanation:

First since 1 and 8b are on the same side mutiply them:

1bx8=8b

So our new equation is 2x+8b

7 0
2 years ago
Can you help prove this identity?
mario62 [17]
Its six idk really ask your teacher for more help


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3 years ago
How many times smaller is 2 than 10?
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Answer:

5

Step-by-step explanation:

10 / 2 = 5

5 times smaller also means 1/5 as big.

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