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
laila [671]
3 years ago
11

The travel time for a plane traveling at a rate of r kilometers per hour for 290 kilometers

Mathematics
1 answer:
Lapatulllka [165]3 years ago
7 0
Time = distance / rate
time = 290 / rate

You might be interested in
the ratio of white flour to whole wheat flower in bread recipe is 2: 3. The recipe uses 10 cups of flour. How much of each type
7nadin3 [17]
4 cups of white and 6 cups of wheat
6 0
3 years ago
A chef uses 4 3/4 cups of broth for 10 servings of soup. How much broth used in each serving of soup? Let x represent the number
kozerog [31]
Answer: 0.475 cups of broth per serving.

Explanation:


1) Ratio given:

 i) To facilitate the operations, transform the mixed number 4 3/4 cups into improper fraction:

4 + 3/4 = [16 + 3] / 4 = 19 / 4

ii) ratio broth: servings

\frac{ \frac{19}{4}cups }{10servings}

2) Proportion with the unknown number of cups of broth per serving:

\frac{ \frac{19}{4}cups }{10servings}= \frac{x}{1serving}

3) Solve for the unknown:

x = [19 / 4] cups × 1 serving / 10 servings = 19 / 40 cups = 0.475 cups
3 0
3 years ago
N+ 12 = -24<br><br> Help please
omeli [17]

Answer:

n = -36

Step-by-step explanation:

The answer is -36 because:

1) We first have to subtract -24 and 12 to find n

-24 - 12 = -36

This is because whenever there are two negative signs, multiply it.

Negative x Negative = Positive

We have to do, 24 + 12 which is 36. Finally, we just put the greater number's sign to the answer. 24 is greater than 12, therefore, we put a negative sign before 36.

Hope this helps!

7 0
3 years ago
He dimensions are tripled. The new surface area would be times larger than the original surface area.
ddd [48]

Answer:

The new surface area would be 9 times larger than the original surface area.

Step-by-step explanation:

Here we do not know what was the original shape, but we will see that it does not matter.

Let's start with a square of side length L.

The original area of this square will be:

A = L^2

Now if each dimension is tripled, then all the sides of the square now will be equal to 3*L

Then the new area of the square is:

A' = (3*L)^2 = (3*L)*(3*L) = 9*L^2 = 9*A

So the new surface area is 9 times the original one.

Now, if the figure was a circle instead of a square?

For a circle of radius R, the area is:

A = pi*R^2

where pi = 3.14

Now if the dimensions of the circle are tripled, the new radius will be 3*R

Then the new area of the circle is:

A' = pi*(3*R)^2 = pi*9*R^2 = 9*(pi*R^2) = 9*A

Again, the new area is 9 times the original one.

If the figure is a triangle?

We know that for a triangle of base B and height H, the area is:

A = B*H/2

If we triple each measure, we will have a base 3*B and a height 3*H

Then the new area is:

A' = (3*B)*(3*H)/2 = (3*3)*(B*H/2) = 9*(B*H/2) = 9*A

Again, the new area is 9 times the original area.

So we can conclude that for any shape, the new area will be 9 times the original area.

3 0
2 years ago
HELP giving brainless and 100 points!!
Ksivusya [100]

Answer:

b

Step-by-step explanation:

3 1/2 x 3 x 1/2= 5.25 or 5 and 1/4

5 0
3 years ago
Read 2 more answers
Other questions:
  • a car dealership has 75 cars on the lot. Of the cars, 40% are black. how many black cars are on the lot?​
    5·2 answers
  • 36÷(6÷3) plz helppppooooop​
    6·2 answers
  • A football stadium will hold 965 students. The cost for a football ticket Is $13 . If a football game is sold out, how much mone
    7·1 answer
  • Each sister bought a gift for their mom. Maggie spent 3 times as much as Karen. Karen spent half as much as Jasmine. Altogether,
    6·1 answer
  • Nate is watching a baseball game. So far, 15 batters have gotten a hit and 5 batters have not. Out of the next 4 batters, how ma
    14·1 answer
  • If someone could please help me on this it would be amazing thank you so much
    11·1 answer
  • If f(x) = 3x^0 - 2x^-1 +4 then f(2)=
    5·1 answer
  • Please help me find X ( I figured out the first part
    13·1 answer
  • Please help me with my math please?
    8·2 answers
  • A suitcase measures 24 inches long and the diagonal is 30 inches long. What is the area of material that is needed to cover one
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!