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nata0808 [166]
2 years ago
15

Oliver drove the first 90 miles of his journey in 1.5 hours and the remaining 120 miles in 3 hours. What was the total average s

peed?
Mathematics
2 answers:
podryga [215]2 years ago
7 0

90+120 miles/1.5+3 hours = 210 miles/4.5 hours = 46.67

hammer [34]2 years ago
7 0

Answer:

46.6666667

Step-by-step explanation:

<em>we need to know the TOTAL average speed. To do that, we need to know how to get the speed, which is distance/time. Now we have to substitute. The equation we get is: s= (90+120)/(1.5+3). After solving, you should get s= (210miles)/(4.5hrs). Now all we have to do is divide, which equals 46.6666667.</em>

<em>Hope this helps! (:</em>

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298000  \div 8 = 37250 \\ 37250 \times 7 = 260750
260,750 voters cast a ballot in favor.
4 0
3 years ago
The price of a CD on sale is 0.65c, where c is the original price of the CD. What does that mean?
Nuetrik [128]
Hey there!

If the price of a CD on sale is 0.65c, then 0.35 was taken off of the original price. You can find this if you subtract 0.65 from 1, or 65% from 100%. 

Your answer would not be your second option or your fourth option, since the price you're paying is 0.65 of the original price and you are getting 0.35 of the price off. Also, your third option wouldn't be correct either, since 0.35 isn't being added on top of the total price. 

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Hope this helped you out! :-)
6 0
3 years ago
12n + 25 = -2n + 55 <br><br> I’ll give brainliest
Mama L [17]

Answer:

n=\frac{15}{7}

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
URGENT!!!! PLEASE SELECT ALL! IF YOU DO SO, YOU GET BRAINLIEST
dimulka [17.4K]

Uhhh I think it'd be C and... probably A or D. I'm not 100% sure, but if I was taking the test, that is what I would choose.

5 0
3 years ago
3x+y=5 , 2x-2y=22 solve the system of equations by the addition method
IgorLugansk [536]

<span><em />
3x+y=5</span>

<span /><span>2x-2y=22 ...............2(x-y)=22 ⇒ x-y=11</span><span><em /></span>

<span><em>3x+y=5</em></span>

<span /><span><em><u>x-y=11                   </u> </em>(+)</span>

<span />3x+x+y-y=11+5

<span>4x=16  /:4</span>

<span /><em>x=4</em>

x-y=11

4-y=11

-y=7 /*(-1)

<em>y=-7</em>


<span><em></em></span>

5 0
3 years ago
Read 2 more answers
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