3 years ago

HELP!

Mathematics

1 answer:

ss7ja [257]3 years ago

6 0

Answer:

divisible by 5 and 9: 90

divisible by 6 and 9: 36, 72, 96

divisible by 2 and 6: 36, 72, 84, 90, 96

Step-by-step explanation:

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Becky buys a notebook for $1.59 and pens for $0.29 each. She spends $5.07. Assume there is no sales tax where Becky lives.

Mekhanik [1.2K]

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3 years ago

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If 1 cm represents 30 km on a map and colorado is shown by a 20cm by 15 cm rectangle on the map, what is the approximate actual

zubka84 [21]

Answer:

20*30km = 600km

15*30km = 450km

600km * 450km = 270000 km^2

Step-by-step explanation:

assuming 1cm --- 30km causes that 2cm --- 60km, 3cm --- 90km, 4cm --- 120km etc. Notice that number of km's is 30 times greater than the number of cm's on a map

using this logic, you calculate both real dimensions of Colorado by multiplying 20*30 = 600 km and 15*30 = 450km

Then we use a formula of an area of a rectangle $A=a\cdot b$ assuming $a=600km, \ b=450km$ and get $A=600\cdot 450=270000km^2$ which is an actual area of Colorado