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
makvit [3.9K]
3 years ago
7

in a survey 3/10 people named blue as their favorite color. one out of the 5 named red. if 1,200 people were included in the sur

vey, how many named blue or red as there favorite color
Mathematics
1 answer:
Brut [27]3 years ago
5 0

The integer for one out of 5 is 1/5.

Knowing this, we simply do

(3/10 + 1/5)*1200

(3/10 + 2/10) * 1200

5/10 * 1200

1/2 * 1200 = 600.

600 people named red and blue as their favorite color.

You might be interested in
Solve (2x3-5x2+8)(x+3)
neonofarm [45]

Answer:

(2 {x}^{3}  - 5 {x}^{2}  + 8)(x + 3) \\  = (2 {x}^{4}  - 5 {x}^{3}  + 8x + 6 {x}^{3}  - 15 {x}^{2}  + 24) \\  = 2 {x}^{4}  +  {x}^{3}  - 15 {x}^{2}  + 8x + 24

8 0
3 years ago
Read 2 more answers
What are the coordinates of the y-intercept of the line represented by the equation 5x+3y=30
andrezito [222]
The coordinates of the y-intercept of the line represented by the equation 5x+3y=30 are (0,10).

3 0
3 years ago
Read 2 more answers
31. Students are going through a three-step process to obtain their ID cards. Each student will spend 2 minutes at the registrat
mars1129 [50]

Answer:

The answer is 72 minutes.

Step-by-step explanation:

The first step will be the registration desk, which last 2 minutes.

The second step is going to one of the three cashiers, this step takes 10 minutes.

The third step is to visit one of the four ID processing stations, to take their picture and to print the ID card. this step take 20 minutes.

Demand rate= 0.5 students per minute

This means 1 student every 2 minutes.

The total amount of time of the three-step process  is 32 minutes.

During 40 minutes 20 students will start their process. These means that the student number 20 will start his/hers process at the minute number 40 of the whole process. As he/she is the last one, no one will finish their process before him/her.

The process takes 32 minutes.

We just need to add 40 minutes to the total amount of time of the three-step process takes, which is 32 minutes.

time=40+32=72 minutes

Therefore to process 20 students it will take 72 minutes.  

7 0
3 years ago
Triangle XYZ Is similar to triangle PGR
marishachu [46]

Answer:

I think 24 will be ur ans_______

7 0
3 years ago
At 10 A.M. a plane leaves Boston, Massachusetts, for Seattle, Washington, a distance of 3000 mi. One hour later a plane leaves S
Reil [10]

Answer:

The plane from Seattle will pass the plane from Boston after 4.5 hours of its departure from the Seattle.

Step-by-step explanation:

Plane-1 = Boston, Massachusetts - Seattle, Washington at 10:00 AM

Plane-2= Seattle, Washington - Boston, Massachusetts at 11:00 AM

Speed of plane-1 = 300 mile/hour

Distance covered by plane-1 in 1 hour = 300 mile/h × 1 h = 300 mile

Distance between plane-1 and plane 2 after 1 hour :

= 3000 mile - 300 mile = 2700 mile

Let the distance covered by plane-1 after 1 hour be x in t time where it will pass plane-2.

Let the distance covered by plane-2 be y in t time where it will pass plane-1.

x + y = 2700 ...[1]

Speed of plane-1 = 300 mile/hour

300 mile/h=\frac{x}{t}..[2]

Speed of plane-2 = 300 mile/hour

300 mile/h=\frac{y}{t}..[3]

Putting value of t from [2] in [3];

t=\frac{x}{300 mile/h}

300 mile/h=\frac{y}{\frac{x}{300 mile/h}}

\frac{x}{300 mile/h}=\frac{y}{300 mile/h}

x = y

In [1] put x = y

y + y = 2700 miles

2y = 2700 miles

y = 1,350 mile

For the value of t, put the value of y in [3]:

t=\frac{1,350 mile}{300 mile/h}=4.5 hour

The plane from Seattle will pass the plane from Boston after 4.5 hours of its departure from the Seattle.

5 0
3 years ago
Other questions:
  • I need help with all the ones that don't have answers.
    15·1 answer
  • If 75 equals a number plus four times the number, find the number
    15·2 answers
  • 16. Use the net to find the surface area of the prism.
    7·2 answers
  • Hey can somebody help me this is due tomorrow!!??
    8·2 answers
  • Multiply.<br>(v+8)(v-8)<br>simplify
    12·1 answer
  • Evaluate 9÷3[(20-7)-2^2]
    14·1 answer
  • What is the measure of angle B in degrees?
    14·2 answers
  • Solve the equation using the multiplicative property of equality and the reciprocal. -2(a-5)=-1/2)10. (-1/2)(-2)(q-5)=(-1/2)10.
    11·1 answer
  • If t\4 +t =15 what is t​
    12·1 answer
  • b) The temperature falls from 11 to -2 °C. How much did the temperature fall? c) The temperature is 6 °C and it falls by 8 °C Wh
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!