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sammy [17]
3 years ago
8

A car travels at a steady speed and takes 5 hours to travel 510 miles work out the average soeed

Mathematics
2 answers:
kenny6666 [7]3 years ago
4 0
Hi there! The answer is 102 mph.

A car travels at a steady speed and takes 5 hours to travel 510 miles.

To work out the average speed, we only need to find the speed per hour (miles per hour - mph). Since we now have our distance covered in 5 hours, we must divide by 5.

Distance covered per hour = 510 miles / 5 hours = 102 miles per hour.

Therefore the speed is 102 mph.
klasskru [66]3 years ago
3 0

102 miles per hour is the answer.

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Mary has 15 points with the total value of $1.75 if the coins are nickels and quarters how many of each kind are there
torisob [31]

Answer:

The number of nickel coins is 10 and the number of quarter coins is 5

Step-by-step explanation:

<u><em>The correct question is</em></u>

Mary has 15 coins with the total value of $1.75 if the coins are nickels and quarters how many of each kind are there

Let

x ----> the number of nickel coins

y ----> the number of quarter coins

Remember that

1\ nickel=\$0.05

1\ quarter=\$0.25

we know that

Mary has 15 coins

so

x+y=15 -----> equation A

The total value of the coins is $1.75

so

0.05x+0.25y=1.75 ----> equation B

Solve the system by graphing

Remember that the solution is the intersection point both graphs

using a graphing tool

The solution is the point (10,5)

therefore

The number of nickel coins is 10 and the number of quarter coins is 5

8 0
2 years ago
PLEASE HELP ASAP THANK YOU
masha68 [24]
1-85.71% of the team attendance
6 0
3 years ago
Please help answer and explanation im very confused.
Veseljchak [2.6K]

Answer:

1) 18m²

2) 25cm²

Step-by-step explanation:

1)

  • a = ½ × b × h
  • a = ½ × 9 × 4
  • a = ½ × 36
  • a = 18m²

2)

  • a = ½ × b × h
  • a = ½ × 10 × 5
  • a = 5 × 5
  • a = 25 cm²
6 0
2 years ago
Pls help<br>Solve 2/3x- 1/5&gt;1<br> ​
Juli2301 [7.4K]

Answer:

x > 9/5

Step-by-step explanation:

Step 1: Write inequality

2/3x - 1/5 > 1

Step 2: Solve for <em>x</em>

  1. Add 1/5 to both sides: 2/3x > 6/5
  2. Divide both sides by 2/3: x > 9/5

Here we see that any <em>x</em> value greater than 9/5 will work.

7 0
3 years ago
What is greater. <br> 1.09 or 1.1<br> 8/7 or 1.1<br> -1.09 or -1.1<br> -8/7 or -1.1
4vir4ik [10]
1.1 is greater
8/7 is greater
-1.09 is greater
-1.1 is greater
3 0
2 years ago
Read 2 more answers
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