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Katarina [22]
3 years ago
12

What is the equation of the line that passes through (3,-1) and (4,7)

Mathematics
2 answers:
ad-work [718]3 years ago
8 0
Gradient = 7-(-1)/4-3
= 8
when x = 3, y = -1,
y = 8x + c
-1 = 8(3) + c
c = -1 - 24
= -25
the equation of the line is y = 8x - 25.
cupoosta [38]3 years ago
4 0
Using y=mx+b the answer would be y=8(x-3)-1.
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NO LINK ANSWERS
Temka [501]

Answer:

16 children and 11 adults

Equation 1: a + c = 27

Equation 2: 4a + c = 60

Step-by-step explanation:

3 0
2 years ago
Maya takes 6 quizzes every 3 weeks, how many quizzes would she take in 8 weeks?<br><br> help please
iVinArrow [24]

Answer:

16

Step-by-step explanation:

she takes 2 quizzes every week

8 0
2 years ago
a full container of juice 64 fluid ounces.how many 7 fluid ounces serving of juice are in a full containet?
saul85 [17]
To find the amount of 7 fluid ounce servings in this container, divide 64 by 7 to get the answer of about 9.14 (rounded to the nearest one hundredth). So 9 full servings and an additional .142857... ounces as well.

Hope this helps!

5 0
3 years ago
Read 2 more answers
PLZ HURRY IT'S URGENT!!
Y_Kistochka [10]

Answer:

n + 6 = 7n

Step-by-step explanation:

"The sum of a number and six" would mean the number plus 6: n+6 and "is seven times the number" indicates that it would be equal to the product of 7 for n: 7n. According to this, the answer is that the translation of the sentence into an equation is: n+6=7n.

n − 6 = 7n is not right because the statement says the sum of a number and six.

7(n + 6) = n is not right because the statement indicates that seven multiplies n on the right side as it says seven times the number.

n = 7n + 6 is not right because the statement says the sum of a number and six which would be on the left side and that this would be equal to seven for n.

8 0
3 years ago
In a hospital there are 56 TB patients. The patients are grouped with respect to their ages.
zalisa [80]
<span>Table:

Class Boundaries         Frequency

5-10                              8

10-15                            9

15-20                          15

20-25                          10

25-30                           8

30-35                           6
                                ----------
total                           56

Average =

[5+10]/2*8+[10+15]/2*9+[15+20]/2*15+[20+25]/2*10+[25+30]/2*8+[30+35]/2*6
---------------------------------------------------------------------------------------------------
</span>                                                      56

That is 1075 / 56 = 19.2

Answer: 19

5 0
3 years ago
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