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faltersainse [42]
3 years ago
11

im bought 10 used books at the yard sale How much did she pay? Did you use addition or multiplication to solve this problem? Why

? Also the price of one book is 75 cents
Mathematics
1 answer:
Tema [17]3 years ago
3 0
It’s 7.5 because 10x0.75 is 7.5
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Can someone please help me solve this and if u have any questions text me don’t comment
Valentin [98]

Answer:

x = 4

Step-by-step explanation:

Sum of angles (in degrees) in a triangle = 180

so

60 + 70 + 12x + 2 = 180

Add like terms

132 + 12x = 180

subtract 132 from both sides

12x = 48

divide both sides by 12

x = 4

4 0
3 years ago
Help me please i do not understand it.
sergij07 [2.7K]
Answer:y = 2x + 4

Explanation:

1) The slope - intercept form is of the kind y = mx + b, where m is the slope and b is the y-intercept.

2) Given two points you can find the slope (using the two points) and then the equation using one of the points.

3) slope = m = Δy / Δx

points given (3,10) , (0,4)

m = [y2 - y1] / [x2 - x1] = [10 - 4] / [3 - 0] = 6 / 3 = 2

4) equation

y - y2
-------- = m
x - x2

  y - 4
---------- = 2
  x - 0

=> y - 4 = 2 (x - 0)

y - 4 = 2x

y = 2x + 4


3 0
3 years ago
Please help me I can’t figure out how to solve
kirza4 [7]
I don’t know how to do it,, but use photomath, it’s perfect for these type of questions
8 0
3 years ago
Read 2 more answers
Could anyone help please?
julsineya [31]

Answer:

9.6 or round it to 10

Step-by-step explanation:

brainliest pls

7 0
3 years ago
Yesterday's afternoon temperature was 21*F. It plunged overnight to 3*F. How many degrees did the temperature drop? I think the
Igoryamba

Answer: its  D) 24

Step-by-step explanation:

For your answer i have checked and it is correct it is D) 24

7 0
3 years ago
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