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3 years ago

Hi again. I'm bb and needs more help with maths if you can help me :3

Mathematics

2 answers:

Vlada [557]3 years ago

6 0

Answer:

The correct answer is C) 3,8 and 5,12

Step-by-step explanation:

Both points best fit the line and are already shown on the graph.

Have a good day and stay safe!

RoseWind [281]3 years ago

4 0

Answer:

Step-by-step explanation:

I got a 100 on my test

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(-2x+3y=8....(i)<br>( x+y=2.........(ii)<br>solve by elumination method and substitution

yan [13]

Answer:

x = -2/5

y = 12/5

Step-by-step explanation:

Substitution method;

-2x + 3y = 8 -----------(i)

x + y =2 -----------(ii)

x = 2 - y

substitute the value of x in equ (i)

(-2)* (2-y) + 3y = 8

-4 + 2y + 3y = 8

5y = 8 + 4

y = 12/5

substitute the value of y in equ (ii)

x + 12/5 = 2

x = 2 - 12/5

= 2*5/1*5 - 12/5

= 10 -12/5 = -2/5

Ans: x = -2/5

y = 12/5

elimination method:

-2x + 3y = 8 -----------(i)

x + y =2 -----------(ii)

(i) ====> -2x + 3y = 8

multiply equ (ii) by 2 ====> <u> 2x + 2y = 4</u>

add (i) and (ii) 5y = 12

y = 12/5

Substitute in equ (ii)

x + 12/5 = 2

x = 2 - 12/5

= 2*5/1*5 - 12/5

= 10 -12/5 = -2/5

Ans: x = -2/5

y = 12/5

5 0

3 years ago

Read 2 more answers

The Hernandez family has six

Charra [1.4K]

Answer:10%

Step-by-step explanation:

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3 years ago

This is only the first question out of many

klemol [59]

3, 5, 7
wanna know why, or do you not care?

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3 years ago

Algebra 2 Help! Thank you.

pychu [463]

Answer:

-2

Step-by-step explanation:

f(1)=3(1)-5 = 3-5= -2

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3 years ago

40% of the students in a class are girls and the number of boys is 24 find the total number of students and the number of girls

navik [9.2K]

Answer:

Girls = 16

Total students = 40

Step-by-step explanation:

40% of the students are girls, this means 60% of the students are boys.

To find the number of girls, setup a proportion using the percentages and actual number of students in the class. I am going to make the numerator the numbers that go with the girls and the denominator will be the numbers that go with the boys.

Also let's convert the percentages to decimals by moving the decimal two places left.

40% = 0.4 and 60% = 0.6

$\frac{.4}{.6} =\frac{g}{24} \\.6g=9.6\\\frac{.6g}{.6} =\frac{9.6}{.6} \\g=16$

Now let's find the total number of students by adding the number of girls to the number of boys.

16 + 24 = 40

7 0

1 year ago