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Jet001 [13]
3 years ago
9

I need help on this one

Mathematics
1 answer:
Tomtit [17]3 years ago
4 0
I cant see the picture im sorry
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On March 9, 2018, NCAA fans across the world were shocked when the Retrievers of the University of Maryland, Baltimore County (U
blsea [12.9K]

Answer:

UMBC scored 10,14 and 12 one - point free throws, two point baskets and three point baskets respectively.

Step-by-step explanation:

Let's start defining the variables.

X : ''Number of 1 - point free throws''

Y : ''Number of 2 - point baskets''

Z : ''Number of 3 - point baskets''

UMBC scored a total of 74 points. Therefore,

X.1+Y.2+Z.3=74 (I)

Where X.1 represents the total points from 1 - point free throws.

Where Y.2 represents the total points from 2 - point baskets.

And finally Z.3 represents the total points from 3 - point baskets.

Reading the exercise, we can write two more equations :

Y=Z+2\\Z=X+2

Let's write Y and X in terms of Z

Y=Z+2 (II)

Z=X+2 ⇒ X=Z-2 (III)

Replacing (II) and (III) in (I) :

(Z-2).1+(Z+2).2+Z.3=74

Z-2+2Z+4+3Z=74

6Z+2=74\\6Z=72\\Z=12

We find that the variable Z is 12. Replacing this value in (II) and (III) ⇒

Y=12+2=14\\Y=14

X=12-2=10\\X=10

Finally, UMBC scored 10 baskets from 1 - point free throws,14 baskets from of 2 - point and 12 baskets of 3 - point.

We can verify by replacing X = 10 , Y = 14 and Z = 12 in equation (I) :

10.1+14.2+12.3=74\\10+28+36=74\\74=74

5 0
3 years ago
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Graph the quadratic function f(x)= -2x^2 + 6x - 2
inn [45]
The answer is........

5 0
3 years ago
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A battery was charged. When the charging began, it was 23 percent full. After 30 minutes of charging, the battery was 89 percent
AfilCa [17]

QUESTION:

A battery was charged. When the charging began, it was 23 percent full. After 30 minutes of charging, the battery was 89 percent full. how fast did the battery charge and how long did it take?

Solution :

<u>Given</u>

  • Initial amount of charge = 23%
  • Amount after charge = 89%

<u>procedu</u><u>re</u>

Let the rate of charging be r .

r = (change in charge level) / (time interval) = (89% - 23%) / (30 min) = 2.2 % per minute

charge = (rate of charging)(time) + (initial charge)

100% = r*t + 23%

100% = (2.2 %/min)t + 23%

Solve for t and get

t = [(100 - 23) / 2.2]

Answer = 35 min

7 0
4 years ago
Simplify. |-18-16|-|-8+(-21)| show work.
Brums [2.3K]
If you would like to simplify |-18-16| - |-8+(-21)|, you can calculate this using the following steps:

|-18-16| - |-8+(-21)| = |-34| - |-29| = 34 - 29 = 5

The correct result would be 5.
6 0
3 years ago
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Multiple choice plz help! Thank u!
Leni [432]
3.7 units 


7.4 divided by 2 ((radius is half of a diameter))
7 0
4 years ago
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