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
professor190 [17]
2 years ago
12

PLEASE HELP If You Are not SURE please don't answer PLEASE show work and steps

Mathematics
2 answers:
Ivanshal [37]2 years ago
8 0
63+12x<15
12x<-48 (subtract 63 from both sides)
x<-4 (divide out the 12)
Georgia [21]2 years ago
8 0
X > -4

63 + 12x < 15
1st. We will subtract 63 on both sides, to leave 12x on one side by itself:
63 - (63) + 12x < 15 - (63) =
12x < -48

2nd: Then we divided by 12 on both sides to isolate x, or to leave x by itself.
12x /12 < -48 /12=
x>-4

*Remeber, make sure to switch the signs from less than x to greater than x. We do that because we are either dividing or multiplying by a negative number!
You might be interested in
The point nearest to the origin on a line is at (4, -4). Find the standard form of the equation of the line.
Scrat [10]

Just did a specific one of these; let's do the general case.


The point nearest the origin is (a,b).


The line from the origin through the point is


bx - ay = 0


The line we seek is perpendicular to this one. We swap the coefficients on x and y, negating one, to get the perpendicular family of lines. We set the constant by plugging in the point (a,b):


ax + by = a^2 + b^2


ax + by -( a^2 + b^2) = 0


That's standard form; let's plug in the numbers:


4 x - 4 y - 32 = 0


x - y - 8 = 0



5 0
3 years ago
9. What is the Greatest Common Factor (GCF) of 9 and 12? *<br> 108<br> о<br> O 36<br> o<br> 9<br> 3
Simora [160]

Answer:

3

Step-by-step explanation:

We found the factors and prime factorization of 9 and 12. The biggest common factor number is the GCF number. So the greatest common factor 9 and 12 is 3.

Hope this helps!

6 0
3 years ago
7 is 40% of what number
dedylja [7]
40% means 0.4 .

So . . . . . 7 = 0.4 N .

Divide each side by 0.4 . . . N = 7/0.4 = 17.5 


3 0
2 years ago
Determine the astm grain size number if 33 grains per square inch are measured at a magnification of 270×
strojnjashka [21]
8.9

The equation for the grain size is expressed as the equality:
Nm(M/100)^2 = 2^(n-1)
where
Nm = number of grains per square inch at magnification M.
M = Magnification
n = ASTM grain size number

Let's solve for n, then substitute the known values and calculate.
Nm(M/100)^2 = 2^(n-1)

log(Nm(M/100)^2) = log(2^(n-1))
log(Nm) + 2*log(M/100) = (n-1) * log(2)
(log(Nm) + 2*log(M/100))/log(2) = n-1
(log(Nm) + 2*log(M/100))/log(2) + 1 = n

(log(33) + 2*log(270/100))/log(2) + 1 = n
(1.51851394 + 2*0.431363764)/0.301029996 + 1 = n
(1.51851394 + 0.862727528)/0.301029996 + 1 = n
2.381241468/0.301029996 + 1 = n
7.910312934 + 1 = n
8.910312934 = n

So the ASTM grain size number is 8.9

If you want to calculate the number of grains per square inch, you'd use the
same formula with M equal to 1. So:
Nm(M/100)^2 = 2^(n-1)
Nm(1/100)^2 = 2^(8.9-1)
Nm(1/10000) = 2^7.9
Nm(1/10000) = 238.8564458
Nm = 2388564.458

Or about 2,400,000 grains per square inch.
7 0
3 years ago
Wire A is bent to form a rectangle with dimensions 5x cm by (4x +2) cm. Wire B is bent to form another rectangle with dimensions
Masja [62]

Answer:

Rectangle B has greater perimeter.

3 0
2 years ago
Other questions:
  • Need Help asap! plz answer thx
    14·1 answer
  • A system of equations is graphed on a coordinate plane.
    14·2 answers
  • A scientist is testing a new antibiotic by applying the antibiotic to a colony of 10,000 bacteria. The number of bacteria decrea
    8·1 answer
  • Designer dolls, inc found that the number of dolls sold, n, varies directly as their advertising budget, a, and inversely as the
    8·1 answer
  • PLEASE HELP ME <br> SHOW ALL THE WorK BC I DONT know how to do it.<br> Will give brainliest
    14·1 answer
  • I WILL GIVE BRAINLIEST!!<br><br> Just need help for questions 88 and 90.
    14·1 answer
  • Please help me I will make brailest
    8·1 answer
  • Plz help will mark brainliest
    10·2 answers
  • Shawn purchased $87.06 worth of merchandise at a department store. He gave the clerk $100.
    11·2 answers
  • Type the correct answer in each box. Use numerals instead of words. The function f(x)=x^1/2 is transformed tp get function w. w(
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!