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MariettaO [177]
3 years ago
9

If a bus driver leaves her first stop by 7:00 a.M., her route will take less than 35 minutes. If she leaves after 7:00 a.M., she

estimates that the same route will take no less than 43 minutes. Write an inequality which represents the time it takes to drive the route, r.
Mathematics
1 answer:
nata0808 [166]3 years ago
8 0

Answer:

r < 35 or r ≥ 43

Step-by-step explanation:

We are told that when the bus driver leaves her first stop by 7:00 a.m., her route will take less than 35 minutes.

Since the time it takes to drive the route is r, then;

r < 35

Also, If she leaves after 7:00 a.M., she estimates that the same route will take no less than 43 minutes. Thus;

r ≥ 43

Thus;

r < 35 or r ≥ 43

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HELP ASAP PLEASE {will gave thanks and a brainliest}
Luba_88 [7]
Alright here I go:

9.98 * 10^6 in standard form is 9,980,000
7.3 * 10^7 in standard form is 73,000,000
73,000,000 subtracted by 9,980,000 is 63020000.
63020000 in scientific notation is 6.302 * 10^7
Hope I helped!
8 0
3 years ago
The rectangle below has a height of 5 meters and a base of 8 meters. What is the area of the triangle inscribed inside?
pogonyaev

Answer:

20

Step-by-step explanation:

formula for triangle= 1/2*base*height

=1/2*8*5

=20

8 0
3 years ago
In a lab experiment, 80 bacteria are placed in a petri dish. The conditions are such that the number of bacteria is able to doub
Effectus [21]

Answer:

The hourly growth rate is of 4.43%.

The function showing the number of bacteria after t hours is P(t) = 80(1.0443)^t

Step-by-step explanation:

Equation of population growth:

The equation for the population after t hours is given by:

P(t) = P(0)(1+r)^t

In which P(0) is the initial population and r is the growth rate, as a decimal.

The conditions are such that the number of bacteria is able to double every 16 hours.

This means that P(16) = 2P(0). We use this to find r.

P(t) = P(0)(1+r)^t

2P(0) = P(0)(1+r)^{16}

(1+r)^{16} = 2

\sqrt[16]{(1+r)^{16}} = \sqrt[16]{2}

1 + r = 2^{\frac{1}{16}}

1 + r = 1.0443

r = 1.0443 - 1

r = 0.0443

The hourly growth rate is of 4.43%.

80 bacteria are placed in a petri dish.

This means that P(0) = 80.

P(t) = P(0)(1+r)^t

P(t) = 80(1+0.0443)^t

P(t) = 80(1.0443)^t

The function showing the number of bacteria after t hours is P(t) = 80(1.0443)^t

6 0
3 years ago
Which could be the next step in simply fingers this question 13 +19+7
Alja [10]
You would add 13+19=32

then add 32+7 which equals 39 :P
7 0
3 years ago
Read 2 more answers
Please answer and explain the answer
Nady [450]

Well every year it grows 8 inches which means that for every one year it grows 8 inches.

BUT, the tree started out 14 inches so every year you have to add the original 14 inches.

So your equation looks like this:

h=8a+14

Hope this helps :)


5 0
4 years ago
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