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lutik1710 [3]
3 years ago
5

Hank's speedometer reads 60 miles per hour, but during a road test he finds that he was actually driving 50 miles per hour. What

is the percent error in Hank's speedometer?
Mathematics
2 answers:
zhenek [66]3 years ago
4 0
The percent error in the speeds are 7.1428. Hope this helps!
pochemuha3 years ago
4 0

Answer:  The speedometer read Hank's miles per hour as 20% more than the miles per hour that he actually drove.

Explanation: 20% of 50 which is the miles per hour he actually drove is 10 and 50 + 10 = 60 which is the incorrect miles per hour his speedometer read.

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GIVING BRAINLYYYY FOR CORRECT ANSWERRR (if you dont get it tell me if you want me to make a post or try looking for a unanswered
Fed [463]

Answer:

hi! i believe the answer should be (4, 2)!

Step-by-step explanation:

when you reflect across the x-axis, you just move it on the other side of the x-axis line! :D

6 0
3 years ago
Read 2 more answers
3 teachers for 63 students; 7 teachers for 147 students are they equivalent?
Luda [366]
Yes, they are! If you divide 63/3 you get 21, and if you divide 147/7 you get 21!:)
3 0
3 years ago
Perform the operation: 3 gal, 1 qt. -1 gal, 3 qt.
Bumek [7]

Ah, college mathematics.

We must remember there are four quarts per gallon.  Let's convert everything to gallons:

3 \frac 1 4 - 1 \frac 3 4 = \frac{13}{4} - \frac{7}{4} = \frac{6}{4} = 1 \frac 2 4

We don't reduce because it's easy to see that's 1 gallon, 2 quarts, third choice.




6 0
3 years ago
Read 2 more answers
Mr. Mole left his burrow that lies below the ground and started digging his way at a constant rate deeper into the ground.
Marizza181 [45]

Answer:

A(t)=-1.8t-4.5

Step-by-step explanation:

Mr.Mole's digging can be described by a linear model of general equation:

A(t)=m*t+c

Where "m" is the rate at which he descends. Note that since the function A(t) measure his altitude relative to the ground, the rate "m" must be negative.

(m=-1.8)

A(t)=-1.8*t+c

The constant "c" is his starting position. To find this value, assign the given data at t = 5 min to the equation above

-13.5=-1.8*5+c\\c=-4.5m

Therefore, the function A(t) is described by the following formula:
A(t)=-1.8t-4.5

8 0
3 years ago
A bag of tokens contains 9 red, 6 green, and 5​ blue tokens. What is the probability that a randomly selected token is red and g
german

Answer:

27/200

Step-by-step explanation:

Knowing that:

A bag of tokens contains 9 red, 6 green, and 5​ blue tokens. What is the probability that a randomly selected token is red and green?

Solve:

and = multiply

Total = 9 red + 6 green + 5 blue = 9 + 6 + 5 = 20

Total = 20 token

Thus,

There are 9 red and 6 green..

Hence,

9 out of 20 is red

6 out of 20 is green

Equation

9/20 × 6/20

Multiply Across:

9 × 6 = 54

20 × 20 = 400

54/400

Simplify

27/200

Therefore, the probability that a randomly selected token is red and green is 27/200.

<u><em>~Lenvy~</em></u>

6 0
2 years ago
Read 2 more answers
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