Help me my good people
1 answer:
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<span>Let x be the speed of the first car, then (x + 10) is the speed of the second car.
We can write the equation by the condition of the problem:
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Then 30+10=40 mph speed of the second car
Answer: 30mph and 40 mph.
<span>I hope this helps.</span>
9514 1404 393
Answer:
- 15.4
- 567.07
- 870
- 4
- 0.78
- 72.0
Step-by-step explanation:
Locate the digit to the right of the place you're rounding to. If that digit is 5 or more, add 1 to the digit in the place you're rounding to. Drop all digits to the right of the one you're rounding to, unless it is left of the decimal point. In that case, zero any digits between the one you rounded and the decimal point. (See problem 3 for an example of this.)
If you're rounding to the ones place (nearest whole number), and that digit ends up being 0, then put a decimal point after it to indicate it is a significant digit.
The second attachment shows the names of the number places, if you need a reminder.
