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RSB [31]
3 years ago
15

can someone help me im tryna finish as. much as pre-algebra as i can im leaving to vacation and i need to finsish allot of math!

someone help :C

Mathematics
1 answer:
konstantin123 [22]3 years ago
7 0

Answer:

i only know the answer for the first one, im sorry, its 30

Step-by-step explanation:

a=h  b/2      if you need help with finding the area of something again use this, Geometry calculator

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A credit card company charges 22% interest fee on any charges not paid at the end of the month.. If the bill totals $450 for thi
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B

Step-by-step explanation:

Because

4 0
3 years ago
I really need help with this problem steps
melamori03 [73]
Solve for y by setting one equation =to X after that you can substitute the equation into the other one let's set the first one in X= FORM
X-7y=10
-2x+14y=-20

Add 7y to both sides of the first equation to let x stand alone
X=7y+10
Now you can substitute x on the second equation
-2 (7y+10)+14y=-20
Distribute
-14y-20+14y=-20
Add and simplify
Us cancel out =0
-20=-20
0=0
They are the same equations you can also divide the second equation by -2 which would make it look like this
X-7y=10
-2 (x-7y=10)
Let me know if I have answered your question
5 0
3 years ago
What is the value of x in the equation<br> 1 x – 8 = 4x + 12?
Bess [88]

Answer:

The value of x is -20/3.

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Determine the effective annual yield for each investment.
Lyrx [107]
I think it’s B but don’t at me
3 0
3 years ago
Thomas drew a line of best fit for the scatter plot as shown. Enter an equation for the line of best fit in slope-intercept form
juin [17]

Answer:

Equation of line best fits the scatter plot is y = -\frac{30}{7} x + 108

Step-by-step explanation:

Let the equation of line be y = mx + c

where m = slope of line and c is the intercept on y -axis

from the graph intercept on y-axis is 108

and the slope of line is given by m = \frac{y_2 - y_1}{x_2 - x_1} where (x_2,y_2) and (x_1,y_1) is the points on line

let, points be (4,96) and (18,36)

on calculating this m = \frac{y_2 - y_1}{x_2 - x_1} = -\frac{30}{7}

Therefore equation of line best fits the scatter plot is y = -\frac{30}{7} x + 108

4 0
3 years ago
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