1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
kifflom [539]
2 years ago
13

Perform the indicated operation 1. (12 + 3) - 7 = N

Mathematics
1 answer:
lubasha [3.4K]2 years ago
8 0

Answer:

N = 8

Step-by-step explanation:

(12 + 3) - 7 = N

=> N = (12 + 3) - 7

=> N = 15 - 7

=> N = 8

You might be interested in
The equation for Y=x+5 and y=-2x-1
Olenka [21]
It’s y=3 i’m pretty sure
8 0
3 years ago
I need help with #66 and #68
NeX [460]

Step-by-step explanation:

66. Δy = -3.4 Δx

Δy/Δx = -3.4

The slope of the line is -3.4. Slope-intercept equation of the line is:

y = -3.4x + b

Plug in the given point to find b:

2 = -3.4(4) + b

b = 15.6

Therefore, the equation is y = -3.4x + 15.6.

Use the equation to find the y coordinates.

\left[\begin{array}{cc}x&y\\-4&29.2\\4&2\\6&-4.8\\18&-45.6\end{array}\right]

68. Repeat the same steps as 66.

Δy = -1.7 Δx

Δy/Δx = -1.7

The slope of the line is -1.7. Slope-intercept equation of the line is:

y = -1.7x + b

Plug in the given point to find b:

3 = -1.7(-7) + b

b = -8.9

Therefore, the equation is y = -1.7x − 8.9.

Use the equation to find the x or y coordinates.

\left[\begin{array}{cc}x&y\\-19&23.4\\-7&3\\-2.412&-4.8\\3.2&-14.34\\9.1&-24.37\end{array}\right]

4 0
3 years ago
Beth récords the height of a plant for 8 week and creates a scatter plot of the data. What is the equation of the line of best f
ivann1987 [24]

Answer:

s mae é uma vuaad iaauela q2 prostittu0a  dsgreaaç, bv aid a respostalalogo q

Step-by-step explanation:

4 0
3 years ago
Your computer supply store sells two types of inkjet printers. The first, type A, costs $269 and you make a $24 profit on each o
just olya [345]
This is the concept of applications of linear equations; suppose you need x number of type A and y number of type be to make the profits required;
Total number of printers will be:
x+y=120....i
Total amount made will be:
24x+18y=2340....ii
thus solving equations i and ii by substitution we shall have:
x+y=120
x=120-y
thus substituting the above in equation ii we get:
24(120-y)+18y=2340
2880-24y+18y=2340
putting like terms together we get
-24y+18y=2340-2880
540=6y
thus
y=540/2
y=90
hence;
x=120-90=30
Therefore to make the profit of $2340 you must sale 90 type A printers and 30 type B printers

6 0
3 years ago
What is the greatest common factor of 3 and 21x?
Keith_Richards [23]

Answer:

3

Step-by-step explanation:

3 ÷ 3 = 1

21x ÷ 3 = 7x

There is no other common factor.

5 0
3 years ago
Other questions:
  • If the measure of angle BDC=100°, measure of angle A = 50°, and measure of angle DBC= 30°. which statement is true?
    12·1 answer
  • Find the x-intercept for the line represented by this equation.
    9·1 answer
  • 380102.804 word form
    10·2 answers
  • Negative 15 divided by 3
    14·2 answers
  • Question 2 (5 points)<br> What is the value of x?<br> HELP ASAP
    10·1 answer
  • Will mark brainliest! Show work! What Number is 35% of 50?❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️
    14·1 answer
  • Carl has been recording the number of pears on his pear tree each week: Week Pears 6 32 7 37 8 42 9 47 The function representing
    10·2 answers
  • Students ages 10-17 were survey about their eating habits during breakfast
    8·2 answers
  • Write the number that is 100 times greater than 1.86
    10·1 answer
  • Happy snow day! My project
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!