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3 years ago

A car travels 320 miles in 7.5 hours. If the car continues at the same rate, how far

Mathematics

2 answers:

Tamiku [17]3 years ago

4 0

Answer:

512.04

Step-by-step explanation:

first you need to find out how many miles it goes in 1 hour so 320 divided by 7.5 which is 42.67

then take 42.67 and multiply it by 12

hope this helps!!

Ksivusya [100]3 years ago

3 0

Answer:450

Step-by-step explanation:

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Answer:

<h3> sum of the roots: $x_1+x_2=4\frac12$ </h3><h3> product of the roots: $x_1x_2=-5$ </h3><h3> Step-by-step explanation:</h3>

$2x^2-9x-10=0\quad\implies\quad a=2\,,\ b=-9\,,\ c=-10$

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From Vieta's formulas applied to quadratic polynomial we have:

if $b^2-4ac\geqslant0$ then

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product of the roots: $x_1x_2=\dfrac ca=\dfrac{-10}2=-5$

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3 years ago

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Tems11 [23]

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Answer:

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