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Alenkinab [10]
3 years ago
6

A meteorologist said it rained during 30% of the past 70 days. How many days did it rain?

Mathematics
1 answer:
RideAnS [48]3 years ago
5 0
21 days. To solve on your own you do 0.3 • 70
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Which equation represents the statement? mark's age, x, is 6 times his age 2 years ago.
s2008m [1.1K]
I'm pretty sure the answer is d.

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3 years ago
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An engineer is trying to design a runway for an airport. He knows that airplanes have the ability to accelerate at 3.3 m/s ^ 2 a
chubhunter [2.5K]

Answer:

The proposed 1600 meters runway length is not long enough

Step-by-step explanation:

The given parameters are;

The amount by which a plane can accelerate = 3.3 m/s²

The time it takes for a plane to lift off the ground = 35 seconds

The length of the runway on the blueprint = 1,600 meters

Therefore, from the equation of motion for distance traveled, s, acceleration, a, and time taken, t, we have;

s = u·t + 1/2·a·t²

Where;

u = The initial velocity

t = 35 seconds

a = 3.3 m/s²

Given that all planes will start motion from rest, we have;

u = 0 m/s

Therefore;

s = 0 × 35 + 1/2 × 3.3 × 35² = 2021.25 meters

Which indicates that the length of the runway a plane would need for take off should be at least 2021.25 meters long, therefore, the blueprint's 1600 meters runway length is not long enough.

7 0
3 years ago
EASY 5TH GRADE QUESTION. WILL GIVE BRAINLIEST <br><br> How would you read the number -30?
Vaselesa [24]

Answer:

Negative thirty

Step-by-step explanation:

4 0
2 years ago
<img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B5%20%2B%202%20%5Cdiv%20%20%5Csqrt%7B5%20-%202%7D%20%7D%20" id="TexFormula1" title
Artemon [7]

Answer:

so yea what was the answer again

Step-by-step explanation:

6 0
3 years ago
The cost of a type of educational toy is expressed as y = 3x + 2. Find the rate of change.
NNADVOKAT [17]

Answer:

3

Step-by-step explanation:

<em>Rate of Change </em>is the same as <em>Slope</em><em>.</em><em> </em>According to the Slope-Intercept Formula, <em>y</em><em> </em><em>=</em><em> </em><em>mx</em><em> </em><em>+</em><em> </em><em>b</em><em>,</em><em> </em><em>m</em><em> </em>is the <em>Rate</em><em> </em><em>of</em><em> </em><em> </em><em>Change</em><em> </em>[<em>Slope</em>].

I am joyous to assist you anytime.

6 0
3 years ago
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