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FrozenT [24]
3 years ago
11

(50 Points)

Mathematics
2 answers:
Yanka [14]3 years ago
5 0
C
If you plug in the values in that equation, it works.
Assoli18 [71]3 years ago
5 0
To find the other system, since we know already that x = 3 and y = 9, we just have to input the value of x and y in each of the equations and see if they work. 

4x + 6y = 64

4 (3) + 6(9) = 64

12 + 54 = 64
66 = 64

That doesn't work, so we move on. 

2x + y = 36

2 (3) + 9 = 36

6 + 9 = 36

15 = 36

Once again, we move on.

4x + y = 21

4 (3) + 9 = 21

12 + 9 = 21

21 = 21

Since we're only looking for one answer, we have found it, meaning that the answer to this question is 4x + y = 21. 
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tensa zangetsu [6.8K]

Answer:

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8 0
2 years ago
Multiply or divide as indicated. 2 x • 3 x^2
anyanavicka [17]

multiply not divide you should get it




5 0
2 years ago
Read 2 more answers
there are 7 people in his family if each burger weighs 3/4 of a pound how much ground beef should john buy
Nataliya [291]
If the ground beef is in pounds, it would be 5.25 lbs of ground beef.

We would get this answer by converting 3/4 into a decimal, .75. Then we multiply .75 by 7 (the number of people).

((This is if the amount of ground beef is in pounds, I'm not sure what it would be if it wasn't))
7 0
2 years ago
What integer is equivalent to 9 3/2
umka21 [38]
First off, we change the mixed fraction to "improper" and then we make it a decimal.

\bf \stackrel{mixed}{9\frac{3}{2}}\implies \cfrac{9\cdot 2+3}{2}\implies \stackrel{improper}{\cfrac{21}{2}}\implies 10.5 \ne \mathbb{Z}

an integer is a "whole" number, with no decimals.
3 0
2 years ago
On a baseball field, the pitcher’s mound is 60.5 feet from home plate. During practice, a batter hits a ball 195 feet at an angl
Dominik [7]
The problem is modelled in the diagram below

We will use the cosine rule to find x

x² = 60.5² + 195² - [2×60.5×195×cos(32°)]
x² = 3660.25 + 38025 - [23595 × cos(32)]
x² = 41685.25 - 19683.50019
x² = 22001.74981
x = √22001.74981
x = 148.33 feet (rounded to 2 decimal place)

Note: the cosine rule is shown in the second diagram below

5 0
3 years ago
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