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
murzikaleks [220]
4 years ago
7

Two and one half times the sum of nine and twelve

Mathematics
1 answer:
ankoles [38]4 years ago
8 0
2.5 x (9+12) = 52.5

Hope that helps!
You might be interested in
Why are circles so important in creating equilateral triangles
Daniel [21]
Maybe because the diameter of the circle should equal each side length of te equilateral triangle 
6 0
3 years ago
Hi guys i need help with this problem y=mx+b
saveliy_v [14]
Y = how far up

x = how far along

m = Slope or Gradient (how steep the line is)

b = value of y when x=0

How do you find "m" and "b"?

b is easy: just see where the line crosses the Y axis.
m (the Slope) needs some calculation:
m = Change in Y/change in X
7 0
3 years ago
Find the circumference and area of a circle with diameter of 21 inches
lianna [129]
To solve for the circumference and the area of a circle, first you must determine the radius.

D = 21 inches
R = 1/2D = 1/2(21) = 10.5 inches.

C = 2pi • r
C = 2(3.14) • 10.5 inches
C = 65.97 inches.

A = Pi • r ^2
A = (3.14) • 10.5^2
A = 346.185 in^2.

The area of a circle is 346.185 in^2.
7 0
3 years ago
The quotient of a number and -5 increased by one is at most 7. please need hellp
zvonat [6]

Answer:

<h2>n ≥ -40</h2>

Step-by-step explanation:

n-\text{a number}\\\\\text{the quotient of a number and - 5}\to n:(-5)=-\dfrac{n}{5}\\\\\text{the quotient of a number and -5 increased by one}\to-\dfrac{n}{5}-1\\\\\text{the quotient of a number and -5 increased by one is at most 7}:\\\\-\dfrac{n}{5}-1\leq7\qquad\text{add 1 to both sides}\\\\-\dfrac{n}{5}-1+1\leq7+1\\\\-\dfrac{n}{5}\leq8\qquad\text{multiply both sides by 5}\\\\5\!\!\!\!\diagup\cdot\left(-\dfrac{n}{5\!\!\!\!\diagup}\right)\leq(5)(8)\\\\-n\leq40\qquad\text{change the signs}\\\\n\geq-40

8 0
3 years ago
The ratio of the areas of two similar polygons is 49:16. If the perimeter of the first polygon is 22cm what is the perimter of t
bazaltina [42]

7.18 ............I think

3 0
4 years ago
Read 2 more answers
Other questions:
  • He unit circle has a radius of 1 unit and is centered at the origin. It is dilated so that it passes through the point (4, 0).
    12·1 answer
  • Use multiplication and the distributive property to find the quotient 96/6
    12·1 answer
  • PLZ HELP ME WITH THIS PROBLEM I DON'T HAVE THAT MUCH TIME!!
    9·2 answers
  • Slope for the line perpendicular to the line shown in the graph
    5·1 answer
  • If f(x) is an antiderivative of g(x), then
    13·1 answer
  • What is the value of the expression 5x – x + 8 when x = 2?
    9·2 answers
  • Awnser please now !!!!!!!!!!!!!!
    8·2 answers
  • X
    12·1 answer
  • 2,451 people came to watch the Easter parade. 745 of those people were adults. How many children came to the parade?​
    14·1 answer
  • Find the value of x.<br> (9x+8)<br> 37°
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!