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kumpel [21]
3 years ago
10

Koshanah rode her bike for 35 minutes on monday, wendsday, and saterday and 55 minutes each on tusday and thersday . Write an ex

perashion that shows tho total amount of time she spend riding her bike . Evaluwate the experation
Mathematics
1 answer:
dem82 [27]3 years ago
8 0

Answer:

215 minutes

Step-by-step explanation:

Let

Number of days she rode for 35 minutes = x

Number of days she rode for 55 minutes = y

Total time spent riding her bike = 35x + 55y

x = Monday + Wednesday + Saturday

x = 3 days

y = Tuesday + Thursday

= 2 days

Substitute into the equation

Total time spent riding her bike = 35x + 55y

= 35(3) + 55(2)

= 105 + 110

= 215 minutes

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I need help on this problem
Arte-miy333 [17]

Answer: QR=4.04

Step-by-step explanation:

For this exercise you must use the followinG Trigonometric Identity:

tan\alpha=\frac{opposite}{adjacent}

In this case, given the right triangle PQR, you can identify that:

\alpha=60\°\\opposite=PR=7.0\\adjacent=QR

Then, the  next step is to substitute those values into tan\alpha=\frac{opposite}{adjacent}:

tan(60\°)=\frac{7.0}{QR}

And the final step is to solve for "QR" in order to find its value.

So you get that this is:

(QR)(tan(60\°))=7.0\\\\QR=\frac{7.0}{tan(60\°)}\\\\QR=4.04

6 0
3 years ago
scott rented a movie. It started at 11:36pm, and it was 2 hours and 49 minutes long. when did the movie end?
Elan Coil [88]
11:36
12:36 1 hour
1:36 2 Hour
1:36 plus 24 mins is 2 but 25 mins left of the movie so then you just add 25 to 2 hours which is 2:25 the movie ended at 2:25 a.m
5 0
4 years ago
Ten times the square of a non-zero number is equal to forty times the number
S_A_V [24]
To convey as an algebraic expression simply break down the statements and use any variable to represent the number in the sentence.

10 • x^2 = 40x
10x^2 = 40x
10x^2 - 40x = 0
10(x^2 - 4x) = 0
X(x - 4) = 0

X = 0

X - 4 = 0
X = 4.

Here are two possibilities of what the number can be, but because it is a nonzero number, I believe it would be 4.
7 0
4 years ago
Solve the following system of equations using elimination
NARA [144]

Answer:

Well elimination is basically multiplying a number to make it possible for it to cancel out

We can multiply the first equation by 2

2(x+2y=-1)

This would be

2x+4y=-2

Its still the same thing but just with non simplified numbers

We can now do any method really to solve

I will just do the subtraction method

2x+4y=-2

-2x+y=4

Solve

2x-2x=0

4y-y= 3y

-2-4= -6

3y= -6

Now solve

y=-2

To find x subsitute in “y” and find ”x”.

x+2*-2=-1

x-4=-1

x=3

y= -2

x= 3

4 0
3 years ago
For the following system, determine if a steady state exists and give the steady state value. The population of a colony of squi
Anettt [7]

Answer:

Option A)

\displaystyle\lim_{t\to\infty}~p(t) = k

Step-by-step explanation:

We are given the following on the question:

p(t) =\displaystyle\frac{4000}{4+e^{-0.02t}}

where p(t) is the population of a colony.

For steady state solution we evaluate:

\displaystyle\lim_{t\to\infty}~p(t)\\\\= \lim_{x\to\infty} \frac{4000}{4+e^{-0.02t}}\\\\=\frac{4000}{4+e^{-\infty}}\\\\=\frac{4000}{4}\\\\= 1000

Thus, the steady state solution is a constant, k = 1000.

Thus, the correct answer is

Option A)

\displaystyle\lim_{t\to\infty}~p(t) = k

8 0
3 years ago
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