Mathematics, 02.03.2021 19:40 sophiaa23
Andra travels 90 miles at an average speed of 70 mph.
She then travels a further 70 miles.
The average speed for the entire journey is 63 mph.
Assuming Andra didn't stop, what was her average speed for the final 70 miles to 2 dp?
HELP PSLSL
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Girardo is using the model below to solve the equation . girardo uses the following steps: step 1 add 4 negative x-tiles to both sides step 2 add 1 negative unit tile to both sides step 3 the solution is which step could be adjusted so that gerardo's final step results in a positive x-value? in step 1, he should have added 4 positive x-tiles to both sides. in step 1, he should have added 3 negative x-tiles to both sides. in step 2, he should have added 4 negative unit tiles to both sides. in step 2, he should have added 1 positive unit tile to both sides.
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Andra travels 90 miles at an average speed of 70 mph.
She then travels a further 70 miles.
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