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
Ber [7]
3 years ago
9

The sixth-graders at Lester's school got to visit either the science museum or the history museum. 21 students picked the scienc

e museum and 28 students picked the history museum. What is the ratio of the number of sixth-graders who visited the history museum to the total number of sixth-graders?
a)28:21
b)42:28
c)49:28
d)28:49
Mathematics
1 answer:
Lina20 [59]3 years ago
8 0
21 + 28 = 49 students

Ration of history 21 to students 49 =  d)21:49
You might be interested in
What is 0.18 continued as a fraction? 15 points, and branliest for whoever answers first!
quester [9]

Answer:

18/100 or 9/50

Step-by-step explanation:

0.18 = 0.18/1

times 100 then 18/100

divided by 2 then 9/50

3 0
2 years ago
Which set of side lengths forms a right triangle?
pochemuha

Awnser:

9,12,18

Step-by-step explanation:

you have to add the smallest numbers together and it has to be greater that the greatest number.

9+12= 21

21>18

4 0
3 years ago
the ratio of girls to boys in the sixth grade is 5:3. If there are 400 sixth graders, how many boys are there?
PilotLPTM [1.2K]

Answer:

boys = 250

girls = 150

Step-by-step explanation:

5g = 3b       eq. 1

g + b = 400       eq. 2

g = girls

b = boys

From the eq. 2

g = 400 - b

Replacing this last eq. on eq. 1:

5(400-b) = 3b

5*400 + 5*-b = 3b

2000 - 5b = 3b

2000 = 3b + 5b

2000 = 8b

2000/8 = b

250 = b

From eq. 2

g + 250 = 400

g = 400 - 250

g = 150

Check:

from eq. 1

5*150 = 3*250  = 750

3 0
2 years ago
See attached picture
yanalaym [24]

Answer:

\frac{f(x+h)-f(x)}{h}=2x + h

Step-by-step explanation:

Given

f(x)= x^2 + 2

Required

Determine: \frac{f(x+h)-f(x)}{h}

First, we calculate f(x + h)

f(x)= x^2 + 2

f(x+h) = (x+h)^2+2

f(x+h) = x^2+2xh+h^2+2

So, we have:

\frac{f(x+h)-f(x)}{h} = \frac{x^2 + 2xh + h^2 + 2 - x^2 - 2}{h}

\frac{f(x+h)-f(x)}{h}= \frac{x^2 - x^2+ 2xh + h^2 + 2  - 2}{h}

\frac{f(x+h)-f(x)}{h} = \frac{2xh + h^2}{h}

\frac{f(x+h)-f(x)}{h}=2x + h

8 0
2 years ago
Which number produces an irrational number when added to 0.4
erastovalidia [21]

Answer:

0.31311311131111....

Step-by-step explanation:

We need to tell a number which when adds to 0.4 makes it a Irrational Number . We know that ,

<u>Rational</u><u> number</u><u> </u><u>:</u><u>-</u> The number in the form of p/q where p and q are integers and q is not equal to zero is called a Rational number .

<u>Irrational</u><u> number</u><u> </u><u>:</u><u>-</u> Non terminating and non repeating decimals are called irrational number .

Recall the property that :-

<u>Property</u><u> </u><u>:</u><u>-</u><u> </u> Sum of a Rational Number and a Irrational number is Irrational .

So basically here we can add any Irrational number to 0.4 to make it Irrational . One Irrational number is ,

\rm\implies Irrational\ Number = 0.31311311131111...

So when we add this to 0.4 , the result will be Irrational . That is ,

\rm\implies 0.4 + 0.31311311131111 ... = 0.731311311131111 ..

6 0
3 years ago
Read 2 more answers
Other questions:
  • The graph shows the speed of a ball in free fall for 10 seconds. Which is the constant of proportionality shown in the graph? It
    14·1 answer
  • This week,Jamyra spent a total of 100 minutes studying. This total was 8 more than four times the amount of minutes she studied
    11·1 answer
  • I’m really struggling with these questions
    11·1 answer
  • Josh sold 4 more boxes of candy for the school fundraiser than Jenny. The sum was 22 of the boxes they sold. How many boxes did
    11·1 answer
  • The marked price of a watch is Rs. 4,000. A shopkeeper sold it at
    12·1 answer
  • Sam bought a soda and a bag of chips for $3. If the soda cost $1.75, how much was the bag of chips?
    7·2 answers
  • Who ever gets it right first gets brainlyest plz help!
    6·1 answer
  • The tyre of a car wheel has an outer diameter of 30 cm . How many times will the wheel rotate on a journey of 5 km
    11·1 answer
  • Find the measure of x to the nearest tenth
    12·1 answer
  • Drag each pair of equations to show if the system has no solutions, one solution, or infinitely many solutions.
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!