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2 years ago

Helllllllllllppppppppp

Mathematics

2 answers:

Verdich [7]2 years ago

6 0

-1/2 because slope is rise over run

andrew11 [14]2 years ago

3 0

-1/2 because slope is the rise over the run. If you count on the grid from one point on the line to another you go up one and 2 to the left meaning the slope is 1/2, buttttt when the line decreases going to the right, it has a negative slope so you just add a - sign in front

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How do you solve this in standard form. y=7x-4

attashe74 [19]

Y = 2/7x - 4
y + 4 = 2/7x
4 = 2/7x - y (multiply everything by seven to get rid of the fraction)
28 = 2x - 7y
2x - 7y = 28

8 0

3 years ago

a group of students arrange a picnic each student contributed rupees 61 1 upon 2 the total contribution was rupees 676 1 upon 2

IrinaVladis [17]

Answer:

Now, each student contributes= Rs 61 1/2= Rs 123/2 ( mixed fraction ).

Therefore, total no. of students=Rs (1953/2÷123/2) = 15.87

Rounding off 15.87 to 16.

There were 16 students

(i hope it is correct answer. pls mark as brainliest)

8 0

3 years ago

Read 2 more answers

Workings please......

attashe74 [19]

Answer:

21.142

Step-by-step explanation:

not sure it's correct

3 0

2 years ago

I need answers!!!!!!!!

aleksandrvk [35]

Answer:

a) 4.4583 b) Fiona

Step-by-step explanation:

First find the average of the numbers by adding them all together then dividing them by the amount of numbers given:

$(85 + 88 + 90 + 91 + 93 + 96 + 97 + 97 + 98 + 98 + 99 + 105)\div12= 1137\div12= 94.75$

Then find the difference between each number and the answer you got

$(85 - 94.75) + (88 - 94.75) + (90 - 94.75) + (91 - 94.75) + (93 - 94.75) + (96 - 94.75) + (97 - 94.75) + (97 - 94.75) + (98 - 94.75) + (98 - 94.75) + (99 - 94.75) + (105 - 94.75)\div12$

Which is

$(9.75) + (6.75) + (4.75) + (3.75) + (1.75) + (1.25) + (2.25) + (2.25) + (3.25) + (3.25) + (4.25) + (10.25)\div12$

Which comes out to

$\frac{53.5}{12}=4.4583$

6 0

2 years ago

Evaluate each expression if a=1/2 b=15 and c=9. C2 + a (2 is a exponent) 2ac. B2 - 5c (2 is exponent). Here is a picture if you

alexgriva [62]

C2 + a = 81.5
2ac = 9
B2 - 5c = 180

let me know if you need the work

8 0

2 years ago