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
mr Goodwill [35]
3 years ago
8

20 points! i need somebody to explain this to me for D + 4 < 7.

Mathematics
1 answer:
Veronika [31]3 years ago
8 0

Assuming there is no line under the "less than" sign, this means D + 4 < 7 solves to D < 3, which is what I'm assuming you got. This is found by subtracting 4 from both sides.

Writing D < 3 means D is some number less than 3. A solution is just that. You cannot pick 3 itself because 3 is not less than 3. But you can pick something like 2 since it is less than 3.

D+4 < 7

2+4 < 7 ... replace D with 2

6 < 7 ... true

Or D could be 1

D+4 < 7

1+4 < 7

5 < 7 .... true

and so on.

You might be interested in
A submarine is only allowed to change its depth by rising toward the surface in 60-meter stages. It starts off at -340 meters. A
balu736 [363]
-340 + 60 = -280 meters
3 0
3 years ago
The graph shows the reciprocal parent function.<br> Which statement best describes the function?
kondaur [170]

Answer:

pretty sure its d

Step-by-step explanation:

the quadrant one function has asymptotes at y=0 and x=0 so x and y have to stay positive

the quadrant three function has asymptotes at y=0 and x=0 so x and y have to stay negative

8 0
2 years ago
Read 2 more answers
If Jeff washes his car in 6 minutes and bob washes the same car in 8 minutes. How long does it take both of them to wash the sam
Tatiana [17]

Answer:

3 3/7 or 24/7 mins

Step-by-step explanation:

Let total job = X

Jeff's rate = X/6

Bob's rate = X/8

Combined rate = X/6 + X/8

(4X × 3X)/24 = 7X/24

7X/24 = X/T

T = X ÷ (7X/24)

T = X × (24/7X)

T = 24/7 mins

Shortcut:

T = product of individual times/sum of individual times

T = (6×8)/(6+8)

T = 48/14

T = 24/7

T = 3 3/7 mins

8 0
3 years ago
Read 2 more answers
What is -15x + 80 &gt; 170
Korolek [52]

Answer:

Step-by-step explanation:

Value of x should be  less than (-6).

x = { .......,-9,-8,-7}

For example:

-15*-7 +80 = 105+80 = 185 >170

3 0
3 years ago
Find the area and perimeter.
yan [13]

Answer:

Area = 33√3

Perimeter = 122

Step-by-step explanation:

This is a parallelogram and perimeter for a parallelogram is calculated by adding side length to base and that's multiplied by 2

perimeter (6 + 11) × 2 = 122

The area is calculated by multiplying height to the base

there's a 30° 60° 90° special triangle inside the parallelogram and the side length that sees 60° in this special triangle is 3√3 so this is our height and base is given as 11

Therefore the area of this parallelogram is

3√3 × 11 = 33√3

3 0
3 years ago
Other questions:
  • Can someone solve these and thank YOU
    13·1 answer
  • Which of the following is the solution to the following system of inequalities? Let the green region represent the answer region
    6·2 answers
  • Give an example of a geometric formuka that xontainas pi
    6·1 answer
  • A car rental company rents a car for $52 per day and $0.15 per mile .whats the rental fee for a car thats rented for 3 days and
    6·2 answers
  • A square is inscribed in a circle. A tangent is drawn to the vertex. What size angle is formed? Select one: a. 45 b. 180 c. 22.5
    7·1 answer
  • Add and simplify. Please help
    7·1 answer
  • Answer BOTH! I’ll mark BRAINLIEST!
    5·1 answer
  • if it was 113.5° in Amarillo and 95.7° in Phoenix how much hotter was it in Amarillo than it was in Phoenix
    12·1 answer
  • How can 26n-7m+4(10n-6m)
    6·1 answer
  • A. (-10,-10)<br> B. (-1 /12, 9 1/2) <br> C. (1/2, 4) <br> D. (1,8)
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!