Ask question

Ask question

All categories

4 years ago

7

a school purchsed basketball for $20 each and footballs for $15 each. they a brought a total of 28 for $480 how many of each typ

e did they buy. define yur varaibles, write a system. solve the system. PLZZZ ANSWER I NEED IT FOR A TEST AND ITS TIME LIMIT

1 answer:

Contact [7]4 years ago

3 0

Answer:

13

Step-by-step explanation:

You might be interested in

Convert the mixed number to an improper fraction. enter your answer below using the slash mark ( / ) as the fraction bar

eduard

The Answer Fam Is 99/10

5 0

3 years ago

Somebody please assist me in answering this math question.

Sphinxa [80]

Firstly look at the options carefully and we will get to know that two answer options are incorrect because 2 of them are representing AT MOST SIGN which we don't need. So in that way Options B and D are eliminated.

So Now we are left with 2 options A and C. Lets figure it out.
We know that Carlos has 5 complete set with 4 individual figures and josh has 3 complete sets with 14 individual figures.
So lets write in the numerical language:-
let us assume that complete sets are X.
ATQ,
5x + 4 ≥ 3x + 14
subtracting 3x from both sides.
5x -3x + 4 ≥ 14
2x + 4 ≥ 14
subtracting 4 from both sides
2x ≥ 14 - 4
2x ≥ 10
dividing both sides by 2
x ≥ 5 Answer
So correct answer option is C

7 0

3 years ago

The distance between the cities Chicago and Toronto is 540 miles. A motorcycle's speed is 48 mph. For a car, it takes 2.25 hours

serious [3.7K]

Answer:

5 hours

Step-by-step explanation:

given :

Distance between the cities = 540 miles

Speed of motorcycle =48 mph

TO CALCULATE THE TIME TAKEN BY MOTORCYCLE TO COVER THE TOTAL DISTANCE WE USE THE FORMULA :

$\frac{DISTANCE}{SPEED}$

By putting given values in the formula we get :

$\frac{540}{48}$

= 11.25 hours

Now, We are given that for a car to cover the same distance it takes 2.25 hours less than the time taken by motorcycle

⇒ 11.25 hours - 2.25 hours

⇒ 9 hours

Thus , Time taken by car to cover the same distance is 9 hours .

Now to calculate speed of car by using formula:

$\frac{distance}{time}$

$\frac{540}{9}$

= 60 mph

Let t be the time taken to meet if they start moving towards each other.

So distance covered by motorcycle in t hours is

speed\times time

= 48t miles

Distance covered by car in t hours is

speed\times time

= 60t miles

⇒ 60t + 48t =540

⇒ 108t = 540

⇒ t= 5 hours

Therefore, time taken to meet if they start moving towards each other is 5 hours.

7 0

3 years ago

Which one of the points A(5.2). B(6,-3) and C(4.7) is the mid-point of the other two? Check your answer by calculating two dista

svlad2 [7]

Answer:

A is the midpoint

Step-by-step explanation:

Given

A(5.2) B(6,-3) and C(4.7)

Required

Which is the midpoint

Midpoint is calculated using:

$(x,y) = \frac{1}{2}(x_1+x_2,y_1+y_2)$

Testing A as the midpoint, we have:

$(5,2) = \frac{1}{2}(6+4,-3+7)$

$(5,2) = \frac{1}{2}(10,4)$

$(5,2) = (\frac{1}{2}*10,\frac{1}{2}*4)$

$(5,2) = (5,2)$

<em>The above equation is true. Hence, A is the midpoint of B and C</em>

5 0

3 years ago

Write the linear inequatlity shown in the graph.The gray area represents the shaded region

MArishka [77]

In mathematics a linear inequality is an inequality which involves a linear function. A linear inequality contains one of the symbols of inequality: < is less than.

so the answer should be A.

5 0

3 years ago