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Lerok [7]
3 years ago
15

Which of the following values for x and y make the equation 4x + 2y + 3 = 19 true? ​

Mathematics
1 answer:
miss Akunina [59]3 years ago
4 0
Can I get a bran list please
A. X=5 4(5)+2y+3=19 y=-7
B.x=4 4(4)+2y+3=19. Y=0
C.x=3 4(3)+2y+3=19 Y=2
D.x=2 4(2)+2y+3=19 y=4
From the calculations the above only the third choice has a similar value of y to the value in calculations
The answer is letter C
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Please please please please
Alexeev081 [22]

Answer:

5cm wide, 10cm long.

Step-by-step explanation:

I came to this answer by looking for common factors between 50 and 5, and I found 10.

5cm + 5cm = 10cm, so it works.

To confirm this, I multiplied 5 and 10 and got 50cm (squared) which works.

3 0
3 years ago
Shannon and Kelly spent $135 on gift certificates for their friends during the holidays. If this amount is 5/7 their total spend
Katena32 [7]

Answer:

$189

Step-by-step explanation:

Let their total amount of spending money be x

given that $135 they spent is 5/7 of their total spending money,

mathematically:

135 = (5/7) x     (multiply both sides by 7)

135 (7) = 5x

945 = 5x

5x = 945  (divide both sides by 5)

x = 945 / 5

x = 189

4 0
3 years ago
What is the correlation coefficient r for the data set?
weeeeeb [17]

Answer:

the answer is -0.95

Step-by-step explanation:

8 0
3 years ago
Paul predicts that n stalks of corn planted together will produce (2n2–2n)(2n2–2n) ears of corn. If Paul plants three corn plant
Free_Kalibri [48]
Given that the production of n stalks of corn planted has been modeled by (2n^2-2n), then the approximate ears of corn produced by 3 stalks will be given by:
2n^2-2n
plugging in n=3 in the formula we get:
2(3)^2-2(3)
simplifying we get:
2(9)-6
=18-6
=12
the answer is: 12 ears
6 0
3 years ago
What is the difference in the Volume Formula for a prism and a pyramid. *
Tanzania [10]

Answer:the volume of a prism is the area of the base times the height of the prism. The volume of the pyramid has the same base area and height as the prism, but with less volume than the prism. The volume of the pyramid is one third the volume of the prism.

Step-by-step explanation:

i hope this helps

4 0
3 years ago
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