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MaRussiya [10]
4 years ago
7

‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️PLEASE PLEASE HELP!!!!!

Mathematics
1 answer:
Marina86 [1]4 years ago
6 0
Hey there!
This situation can be represented by the following equation:
y = 20 + 20x 

This is because she starts without any time passing with 20 pounds of cans and collects 20 more pounds every week. 
So when x = 0, y = 20. 

The variable y is the number of pounds of cans collected, while x is the number of weeks passed. 

If we want to find the number of pounds of cans she has after 10 weeks, we have to substitute x = 10 like this:
y = 20 + 20(10)

Multiply 20 x 10.
 y = 20 + 200 

Add 20 + 200. 
y = 220

Your answer is 220 pounds, the second option shown!

Hope this helps!
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A room is 5m by 3m and has a height of 3.5m. Find the distance from a comer point on the floor to the opposite comer of the ceil
stiks02 [169]

Answer:

Approximately 6.8m

Step-by-step explanation:

We can picture this problem by drawing a rectangular prism with a width of 5m, a depth of 3m, and a height of 3.5m. To find the length from one corner of the floor to the opposite corner of the floor, we can use the pythagorean theorem and plug in the width and depth of the room for a and b:

5^{2}+3^{2}=c^{2}

And now we can solve for c...

34 = c^{2}

\sqrt{34}=\sqrt{c^{2}}

c = 5.831m

Now that we have the length from corner to corner across the floor, we can use the pythagorean theorem again, this time using the length from corner to corner across the floor we just derived and the height of the room:

5.831^{2} + 3.5^{2}=c^{2}

And now we can solve for c again...

46.25=c^{2}\\\sqrt{46.25}=\sqrt{c^2}

c = 6.8m

3 0
3 years ago
At a certain hospital, the probability of a child being born female is 0.51. If 80 babies are born on the a certain day, the pro
Ber [7]

Answer :

0.53

Step-by-step explanation:

Given the following :

Probability of female = probability of success on a single trial = 0.51

Number of babies = 80

Probability that more than half of the babies are female : p(X >80/2) = P(X > 40)

The problem can be solved using the binomial probability function :

P(X > 40) = [ p(X= 41) + p(X= 42) +.... +p(X= 80)]

In other to save computation time, we can use the binomial probability calculator

Hence ; P(X > 40) = 0.527 = 0.53

6 0
3 years ago
PLEASE HELP WILL GIVE BRAINLIEST!!!!
finlep [7]

Answer:

Make a graph

Step-by-step explanation: In order to plot points, you need to first make a graph. So you would make a graph and plot out the numbers on the line. Hopefully you know how to setup a graph and what goes on the x and y axis. So for the first one you would go left on the graph till you hit -3 and then down to -2 and then draw a point right there. For the second one you would go right to 2 and then up 4 and draw a point.

7 0
3 years ago
Read 2 more answers
A trapezoid has an area of 13.5 square inches. If the bases are 3 and 6 inches what is the height?
liraira [26]
Well the formula is : b1+b2/2 (h)

so the height would be solved as : 
13.5 = 3+6/2 (h)
13.5 = 9/2 (h)
h = (13.5)/(9/2)
h = (13.5) x (2/9)  *reciprocal*
h = (27) / (9)
h = 3


5 0
3 years ago
The digit that makes 39,9?8 divisible by 9 is
Luden [163]

Answer:

?=7

Step-by-step explanation:

Here is a cool trick that I believe only works with 9.

Add the numbers, 3+9+9+8+x= divisible by 9.

3+9+9+7+8 is 36 which is the only number divisible by 9.

5 0
3 years ago
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