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masya89 [10]
3 years ago
5

Katya is baking cookies that require 8 1/2 grams of vanilla paste per batch. She has 22 1/5 grams of vanilla paste. How many bat

ches of cookies can she bake?
Mathematics
1 answer:
dmitriy555 [2]3 years ago
8 0

Answer:

2 batches

Step-by-step explanation:

8.5×2=17

8.5 cant go into 22.2 anymore or else it'd be over 22.2

so  you can only make 2 batches

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Step-by-step explanation:

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a. 1 200 000 km

b. 0.000 773 cm

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Step-by-step explanation:

a. Calculate the ACTUAL distance, in km, between two places which are 16 cm apart on the map.

Since the scale is 1 : 75000 that is 1 cm : 75000 km, we want to find the actual distance of 16 cm on the map. Let x be the actual distance in km.

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So, 1 cm/75000 km = 16 cm/x km

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Since the scale is 1 : 75000 , the scale for the area would be the square of this. So, 1² : 75000² = 1 : 5 625 000 000 which is 1 cm² : 5 625 000 000 km²

Let z be the actual area of the lake.

So,  1 cm² : 5 625 000 000 km² = 12 cm² : z km²

So, 1 cm²/5 625 000 000 km² = 12 cm²/z km²

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Let a represent the area of the play field on the map. Using our scale for the area,

1 cm² : 5 625 000 000 km² = a cm² : 90 km²

So, a cm² = 90 km² × 1/5 625 000 000 km² = 0.000 000 016 cm²

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