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SOVA2 [1]
3 years ago
15

Math help plz. Explanation for each plz!!, thx 9th grade math

Mathematics
1 answer:
Aleks04 [339]3 years ago
4 0

Answer:

4230--W291-WW3

Step-by-step explanation:

im -2 hi

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The sum of two numbers is 32. The difference between the numbers is 8. Write a system of equations to represent this situation.
zalisa [80]

Let\: x,y\: (x>y>0)  \: be \:  the  \: two \:  numbers.\\We  \: have  \: an \:  equality:\\\begin{cases} x + y = 32\\x - y = 8 \end{cases}\\ \Leftrightarrow \begin{cases} 2x = 40\\y = x - 8 \end{cases} \\ \Leftrightarrow \begin{cases} x  = 20\\y = 20 -  8 = 12 \end{cases} \\ \Rightarrow The  \: two  \: numbers \:  are \:  2 0  \: and \:  12

7 0
3 years ago
List the steps taken to find the area of a triangle. Find the area of the
ICE Princess25 [194]

Answer:

base x height / 2

I'm guessing 10 and 17 are the base and height

10 x 17 = 170

170 / 2 = 85

85 is the area

Hope this helps

Step-by-step explanation:

5 0
3 years ago
A population of bacteria is growing according to the function below, where t is in hours. How many hours will it take for the po
nalin [4]
B(t)=50×e^2.5t

e^2.5t = 20
t= ln(20) / 2.5 
set B(t)=1000 and solve for t via 1000=50e2.5t
20=e2.5t
ln(20)=2.5t
t=ln(20) / 2.5

4 0
4 years ago
Which ordered pair would form a proportional retationship with the points in the graph?
shtirl [24]

Answer:

(9, 6)

Step-by-step explanation:

the given points are

(3, 2)

(6, 4)

so, can you see, how the sequence continues ?

I see immediately that for every 3 additional units of x we add 2 units of y.

so, yes, the next point in the sequence is

(6 + 3, 4 + 2) = (9, 6).

so, this point (or ordered pair) follows the same ratio or proportional relationship between x and y as the points already in the graph.

in other words, they are on the same line following the same slope ("y coordinate change / x coordinate change" when going from one point on the line to another).

7 0
2 years ago
PLEASE HELP STAT AND FILL IN THE BLANKS
Reil [10]

Answer: So if Allison has 30 beads and each bracelet has 7. She would make 4 bracelets with 2 left over. The sentence would be If Alyson made 4 bracelets she would use 28 beads, leaving 2 left over.

Step-by-step explanation: 30/7 is 4 with a remainder of 2

4 0
3 years ago
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