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DENIUS [597]
4 years ago
9

Write an expression that is divisible by 7. Use it to find two three-digit numbers numbers divisible by 7.

Mathematics
1 answer:
inysia [295]4 years ago
5 0

Answer:

7x+7 is obviously divisible by 7.

put in any value high enough and you can find the two three digit numbers.

Step-by-step explanation:

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3 years ago
5miles = 8km. How many km in 80miles?
Zina [86]

Answer:

128

Step-by-step explanation:

Set this up as a proportion with miles on the top and km on the bottom:

\frac{mi}{km}:\frac{5}{8}

If we want to know how many km are in 80 miles, we put the variable with the km stuff on the bottom and 80 on top and cross multiply to solve for the variable:

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That means that 80 miles is equivalent to 128 km

4 0
4 years ago
Cab 1 charges $1 per kilometer. Cab 2 charges $0.50 per kilometer and a $4 base charge. Solve for the value of k(kilometers ) th
Scorpion4ik [409]

Answer:

k=8

Step-by-step explanation:

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