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
Y_Kistochka [10]
2 years ago
14

Solve 15 ≥ -3x or 2/5x ≥ -2.

Mathematics
1 answer:
Lera25 [3.4K]2 years ago
8 0

Answer:

15 \geqslant  - 3x  \\  \frac{15}{3}  \geqslant  - x \\ 5 \geqslant  - x \\  - 5 \leqslant x

\frac{2}{5}x \geqslant  - 2 \\ x  \geqslant  - 2 \times  \frac{5}{2}   \\ x \geqslant  - 5

You might be interested in
50 POINTS! :D
Alexxandr [17]

Answer:

The speed of the first car is 60 mph

Step-by-step explanation:

speed = distance/time

Solve the above equation for distance to get

distance = speed * time

or simply

d = st

Now we use this formula for distance to write an equation for each car.

Let s = speed of second car

Then since the speed of the first car is 10 mph faster, the first car's speed is s + 10.

The time the two cars traveled is equal but unknown, so let the time = t.

First car: speed = s + 10; time = t; distance = 120 miles

d = st

120 = (s + 10)t    

(s + 10)t = 120      Equation 1

Second car: speed = s; time = t; 100 miles

d = st

100 = st

st = 100       Equation 2

Equations 1 and 2 form a system of 2 equations in 2 unknowns.

(s + 10)t = 120

st = 100

Distribute t in the first equation.

st + 10t = 120

From the second equation we know st = 100, so substitute 100 for st.

100 + 10t = 120

10t = 120

t = 2

The time traveled was 2 hours.

Equation 2:

st = 100

Substitute t with 2.

s * 2 = 100

s = 50

The speed of the second car was 50 mph.

The speed of the first car is s + 10.

s + 10 = 50 + 10 = 60

Answer: The speed of the first car is 60 mph

8 0
3 years ago
Convert 8.25% to a decimal
Kisachek [45]

Answer: 0.0825

Step-by-step explanation:

8.25% to decimal is simply divide 8.25 by 100

8.25/100= 0.0825

3 0
3 years ago
Read 2 more answers
Two times Noura's age plus 5 years equals Ali's age. Ali is 19 years old. What formula could be used to calculate Noura's age
jenyasd209 [6]

Answer:

Noura is seven years old

Step-by-step explanation:

to get Noura's age first you need to subtract 5 years from Ali's age which will get you to 14 years of age now you just need to divide 14 by two to get Noura's age which is seven

3 0
3 years ago
A child’s swimming pool holds 168 gallons of water. Water leaked out of the pool at a rate of 8 gallons every 6 hours. At this r
Vlad1618 [11]

Answer:

126 hours. aka 5.25 days.

Step-by-step explanation:

168/ amount of time will leak until empty = 21

21 x 6 hours each time. :)

3 0
3 years ago
Classify the following triangle as acute, obtuse, or right.
Pani-rosa [81]

Answer:

acute

Step-by-step explanation:

beccccccsssdsss

4 0
3 years ago
Other questions:
  • CHECK MY ANSWER PLEASE (I chose C)
    7·1 answer
  • Find all angles between 0 and 2π satisfying the condition sinx=−√2/2.
    12·1 answer
  • 11111111111111111111111111111111111111111111111111111111111111111111111111111111111
    7·1 answer
  • A runner completed a 26.2-mile marathon in 210 minutes.
    6·1 answer
  • 8 1/6 divide 1 7/8? <br><br> The quotient is close to _____
    11·1 answer
  • 12(3+10)= 12x ?+ ? x10
    14·1 answer
  • The lines represented by the equations y - x = -8 and y = -x – 6 are
    15·1 answer
  • Factor b^4 - 2b^2 - 63
    8·2 answers
  • Can i get help on dis question anyone?
    8·1 answer
  • Find the slope of a line perpendicular to y=⅖x+⅘<br>​
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!