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PilotLPTM [1.2K]
2 years ago
12

Zane and Matt are both keen runners. Zane takes 4 minutes to jog around a running track and Matt takes 5 minutes. They start at

the same time and keep running until they both cross the finish line at the same time.
a) how long did they run for?
b) how many laps did Matt run?
c) how many laps did Zane run?​
Mathematics
1 answer:
Sergio [31]2 years ago
3 0
I believe that the correct answer to this question is B. because matt took more than 5 minutes .
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On a map of the united states , 24 centimeters represent 18 miles .how many centimeters reprsent one mile. How long is the line
VladimirAG [237]
1.33 equals one mile and 24 centimeters. Also 18 miles is the actual distance. I hope this helped but i was a little confused but i am pretty sure the answers are right
3 0
2 years ago
Assume that TUV=WXY which of the following congruence statements are correct
Damm [24]

Answer:

A and E are correct option.

Step-by-step explanation:

We are given two triangle congruent.

If two triangles are congruent then their corresponding sides and angles are equal.

In ΔTUV ≅ ΔWXY

Now we write all the congruent sides and angles

  • ∠T=∠W
  • ∠U=∠X
  • ∠V=∠Y
  • TU≅WX
  • UV≅XY
  • TV≅WY

Now we see all the given option.

∠Y=∠V  (TRUE, Congruent part of congruence triangles)

∠W=∠T  (TRUE, Congruent part of congruence triangles)

Thus, A and E are correct option.

7 0
2 years ago
Read 2 more answers
Unless otherwise specified, the domain of a function f is assumed to be the set of all real numbers x for which f(x) is a real n
e-lub [12.9K]

Answer:

See Below

Step-by-step explanation:

The function is a piecewise function defined as:

N(t)=\left \{ {{25t+150} \ 0 \leq t \leq 6 \atop {\frac{200+80t}{2+0.05t} \ t \geq 8}} \right.

a)

We need to find the limit of the function as t goes to infinity. This means what is the max value of fish in the pond given times goes to infinity (on an on).

We will take the 2nd part of the equation since t falls into that range, t is infinity, which is definitely greater than 8.

\lim_{t \to \infty} \frac{200+80t}{2+0.05t} \\\lim_{n \to \infty} \frac{80t}{0.05t}\\ \lim_{n \to \infty} \frac{80}{0.05} =1600

This means the maximum number of fish at this pond is 1600, no matter how long it goes on.

b)

A function is continuous at a point if we have the limit and the functional value at that point same.

Functional value at t = 8 is (we use 2nd part of equation):

\frac{200+80t}{2+0.05t}\\\frac{200+80(8)}{2+0.05(8)}\\=350

We do have a value and limit also goes to this as t approaches 8.

So, function is continuous at t = 8

c)

We want to find is there a "time" when the number of fishes in the pond is 250, during t from 0 to 6. We plug in 250 into N(t) and try to find t. Make sure to use the 1st part of the piece-wise function. Shown below:

N(t)=25t+150\\250=25t+150\\25t=250-150\\25t=100\\t=4

The time is 4 years when the number of fishes in the pond is 250

6 0
2 years ago
Anthony borrows $6.50 from a friend to pay for a sandwich and drink at lunch. Then he borrows $3.75 from his sister to pay a lib
Katen [24]

Money borrowed by Anthony from his friend for a sandwich and drink at lunch = $6.50

Money borrowed by Anthony from his sister to pay a library fine = $3.75

Hence, the equation to express Anthony's total debt that day will be =

Let T be the total debt , so the equations becomes,

6.50 + 3.75 = T

8 0
2 years ago
Read 3 more answers
Lana is the oldest of four sisters. Her youngest sister is half her age. The other two sisters are twins $2$ years younger than
vagabundo [1.1K]
Let the youngest sister be n years
Lana will be 2n years, as her youngest sister is half her age
The age of the twins separately will be 2n-2 as they are 2 years younger than Lana
So, the equation looks like this:
n + 2n + 2(2n-2) = 45
Now solve for n:
3n + 4n - 4 = 45
7n - 4 = 45
7n = 49
n = 7
So the youngest sister is 7, Lana is 14 and the twins are 12. 14 + 12 + 12 + 7 =45
8 0
2 years ago
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