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Ludmilka [50]
3 years ago
10

You are buying balloons for a party. A small balloon costs ​$2. A large balloon costs ​$4. Write an algebraic expression for the

cost of x small balloons and y large balloons. Then find the total cost for 10 small balloons and 5 large balloons.
An algebraic expression for the cost of x small balloons and y large balloons is

what.

The total cost for 10 small balloons and 5 large balloons is ​$

what.

Will mark your answer brainliest if you get it right
Please Answerrrrrrrrrr!
Mathematics
1 answer:
miv72 [106K]3 years ago
8 0

Answer:

2x + 4y

$40

Step-by-step explanation:

Equation for x small balloons and y large balloons

2x + 4y

Total cost of 10 small balloons and 5 large balloons

x = 10, y = 5

2(10) + 4(5)

= 20 + 20

= $40

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3 0
2 years ago
On monday it took 5 builders to 3 1/2 hours to build a wall
zubka84 [21]

Answer:   £ 81.38

Step-by-step explanation:

Given: On Monday,

5 builders took 3\dfrac{1}{2} hours  ( i.e. \dfrac{7}{2} hours )  to build a wall.

On Tuesday, only 2 builders were available.

As workers are inversely proportional to the time if the job remains constant.

Inverse variation equation : x_1y_1=x_2y_2

Let x be the time taken by 2 builders, then

2\times x =5\times \dfrac{7}{2}

\Rightarrow\ x=\dfrac{35}{2}\times\dfrac{1}{2}=\dfrac{35}{4}=8.75

So, 2 builders will take 8.75 hours.

Each paid  £9.30 for each hour.

Then, each builder will be paid for the work completed on Tuesday = £9.30 x  8.75

≈ £ 81.38

Hence, each builder will be paid £ 81.38 for the work completed on Tuesday .

5 0
3 years ago
A problem states: "There are 9 more children than parents in a room. There are 25 people in the room in all. How many children a
Dmitrij [34]
To work out who the unknowns in the room are, we can establish that c = p+ 9
c + p = 25. The unknowns in the room are there the total number of parents in the room, and the total number of teachers in the room.
6 0
3 years ago
What is the soloution to -4x+2=-14​
docker41 [41]

Answer:

x = 4

Step-by-step explanation:

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3 0
3 years ago
Read 2 more answers
Use synthetic division find the product of ( 2x+3) and (x2-5x+6)​
alexgriva [62]

Answer:

8

x

3

+

2

x

2

−

3

x

+

18

Explanation:

We have:

(

2

x

+

3

)

(

4

x

2

−

5

x

+

6

)

Now let's distribute this piece by piece:

(

2

x

)

(

4

x

2

)

=

8

x

3

(

2

x

)

(

−

5

x

)

=

−

10

x

2

(

2

x

)

(

6

)

=

12

x

(

3

)

(

4

x

2

)

=

12

x

2

(

3

)

(

−

5

x

)

=

−

15

x

(

3

)

(

6

)

=

18

And now we add them all up (I'm going to group terms in the adding):

8

x

3

−

10

x

2

+

12

x

2

+

12

x

−

15

x

+

18

And now simplify:

8

x

3

+

2

x

2

−

3

x

+

18

Step-by-step explanation:

6 0
3 years ago
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