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jek_recluse [69]
3 years ago
7

Select the equations that are correct.mark all that apply.

Mathematics
1 answer:
allsm [11]3 years ago
4 0

Answer:

17,550÷65=270  Correct

11,196÷12=933  Correct

11,712÷96=122 Correct

Step-by-step explanation:

17,550÷65=270  Correct

11,196÷12=933  Correct

29,365÷35=677  Incorrect

11,712÷96=122 Correct

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Pls someone help idk
tino4ka555 [31]

Answer:

first one c and the second on b

Step-by-step explanation:

3 0
3 years ago
| 9. The distance between Town A and Town B was 108 km. A car and a van left Town A at 12 00 for Town B. On reaching Town B, the
Westkost [7]

Answer:

a)  Time until both vehicles meet is 1.5 hours after starting at noon.  That makes it 1:30PM.

b)  Average speed of car is 84 km/h

Step-by-step explanation:

A -----------------------z------------B

          <u>Left</u>      <u>Speed(km/h)</u>      <u>Time</u>

Car:   12PM            X  

Van:   12PM           60

Car/Van

DistanceCar        AB + z

DistanceVan       Az

Ratio:                  (AB+z)/Az  = 7/5

Time until both meet = T (in hours)

Distance Car:            xT

Distance Van:           60T

====

  xT = AB + z

  60T = Az

---

(xT/60T)= (7/5)

x = 60(7/5)

x = 84 km/h

=====

Time for car to reach B is:    time (hr) = 108 km/(84 km/h)

                                                 time = 1.286 hours

Distance for at 1.289 hours is:    distance (km) = (60 km/h)*(1.286 h)

                                                   distance = 77.14 km

At 1.286 hours, the car reverses direction.  The van is (108 km - 77.14 km) or 30.86 km away.

Add the distances travelled by both vehicles after the car reverses direction at 1.286 hours.  The sum will be 30.86 km when they meet, at time of T.

Car Distance + Van Distance = 30.86 km

T(84 km/h) + t(60 km)

They meet when they are 0 km apart, which can be modeled with the following equation:

Van travel Distance - Car Travel Distance = 0 starting at 1.286 hr.

Let <u>t</u> be the time <u>after</u> 1.286 hours that both vehicles meet/collide.

t*(60 km/h)  +  t(84 km/h) = 30.86 km

t(60+84) = 30.86 km

t(144 km/h) = 30.86 km

t = 0.2143 hr

Total time until the car and van meet is 1.286 hr + 0.2143 hr for a total of 1.50 hours.

=================

a)  Time until both vehicles meet is 1.5 hours after starting at noon.  That makes it 1:30PM.

b)  Average speed of car is 84 km/h

==============

<u>CHECK</u>

Is the ratio of the distance travelled by the car and the van until they meet in the ratio of 7/5?

Car distance is (1.5 hr)(84 km/h) = 126 km

Van distance is (1.5 hr)(60 km/h) = 90.0 km

Ratio is 126/90 or 1.4

Ratio of 7/5 is 1.4

<u><em>YES</em></u>

     

3 0
2 years ago
If a&gt;b, c&lt;b, and d&gt;a, then which of the following is the correct relationship?
tatuchka [14]

x > y is the same like y < x

If a > b and b > c then a > b > c

If d > a then d > a > b > c

<h3>Answer: (D) c < b < a < d</h3>
7 0
3 years ago
Simplify the expression 6sqrt2/sqrt3
Ilya [14]
The answer would be 2<span>√<span>​6 and in decimal form </span></span><span>4.898979, I hope this helps!</span>
8 0
3 years ago
Read 2 more answers
“All You Can Eat Tuesdays” at a local café offers a full salad bar that costs $10 for children and $15 for adults. Last Tuesday,
erma4kov [3.2K]

Answer:

10x + 15y = 180

Step-by-step explanation:

hope i helped 3 days later lol srry

3 0
3 years ago
Read 2 more answers
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