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
shusha [124]
3 years ago
11

Can you help me with 12-3(x+1)=30

Mathematics
1 answer:
inysia [295]3 years ago
7 0
Greetings!

12-3(x+1)=30
Distribute the Parenthesis.
12-3x-3=30
Combine like terms.
9-3x=30
Add -9 to both sides.
(15-3x)+(-9)=(30)+(-9)
-3x=21
Divide both sides by -3.
(-3x)/-3=(21)/-3
The Answer Is:
x=-7

Hope this helps.
-Benjamin
You might be interested in
Help me with geometry. I don’t understand this
valkas [14]

Answer:

b and d are 176 c is 53 a is 51

5 0
2 years ago
Read 2 more answers
The number of eggs in the refrigerator e decreased by 5 equals 18
AnnZ [28]

Answer:

e=23

Step-by-step explanation:

The equation representing this scenario is e-5=18.

Add 5 to both sides and you get e=23 (eggs)

7 0
3 years ago
Preston can paint 375 square feet in 3 hours. At the same rate, how long would it take him to paint 812.5 square feet?
charle [14.2K]

Answer:

6.5 hours

Step-by-step explanation:

First try to find the rate he can paint per hour

375 ÷ 3 = 125 ft^2 per hour

Then try to find how long it should take it for him to paint 812.5 sq ft

812.5 ÷ 125 = 6.5 hours

6 0
3 years ago
Dan has already delivered 48 donuts today. For the next few hours, Dan will deliver 60 donuts per hour. Match the number of donu
frez [133]
A.number of donuts delivered 2 hours from now.
2. Next=now +60+60
starting at 48                      because 2 hours meant  2*60 = 60+60

B. number of donuts delivered 7 hours from now C
3.Next= now +420
starting at 48                     because 7 hours meant  7*60 = 420 mn

C.number of donuts delivered n hours from now.
4. Next=now+60n
starting at 48            (this is obvious)

so finally, 
 D. number of donuts delivered 6 hours from now.
1. Next= now+ 6*60
starting at 48                
7 0
3 years ago
The directrix of a parabola is y=−4y=−4 . The focus of the parabola is (−2,−2)(−2,−2) .
salantis [7]
Refer to the diagram shown below.

The directrix is y = -4 and the focus is (-2, -2).
Therefore the vertex is at (-2, -3).

Consider an arbitrary point (x,y) on the parabola.
The square of distance from the focus to the point is
(x+2)² + (y+2)²
The square of the distance from the point to the directrix is
(y+4)²

Therefore
(y+4)² = (y+2)² + (x+2)²
y² + 8y + 16 = y² + 4y + 4 + (x+2)²
4y = (x+2)² - 12
y = (1/4)(x+2)² - 3

Answer: y =  \frac{1}{4} (x+2)^{2} - 3

6 0
2 years ago
Other questions:
  • What’s the answer to this??
    13·2 answers
  • Not really math 20 points for this though what are Fiona's parents names
    6·1 answer
  • "Judging by appearance, classify the figure in as many ways as possible.
    11·1 answer
  • Given the functions j(x) = x2 − 9 and k(x) = −x + 7, which operation results in a 3rd degree polynomial?
    14·1 answer
  • The isosceles trapezoids, ABCD and EFGH, are similar quadrilaterals. The scale factor between the trapezoids is 2:3, = 6 centime
    11·1 answer
  • What’s 3/8×1/9 in the simplest form
    11·2 answers
  • Michael paid a repairman dollars per hour for a 4-hour job plus $69 for parts. The total charge was $320. Which equation can be
    11·1 answer
  • Write an inequality for the statement. The sum of a number and nine is less than thirty.
    9·1 answer
  • Please help me I will give brainly if correct
    7·1 answer
  • Can you help thanks this is my last one!​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!