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ValentinkaMS [17]
3 years ago
7

You are buying balloons for a party. A small balloon costs ​$3 A large balloon costs ​$5 Write an algebraic expression for the c

ost of x small balloons and y large balloons. Then find the total cost for 11 small balloons and 9 large balloons. Please solve! I'm stuck!
Mathematics
2 answers:
Kaylis [27]3 years ago
8 0

Answer:

$3x+$5y=C and the total cost is $ 78

Step-by-step explanation:

the equation first is going to be  $3x+$5y=C

x: small balloons

y: large balloons

c: total cost

Now to find the how much the total cost is, you should substitute the variables  and then solve the equation.

x: 11

y:9

3(11)+5(9)= 33+45

78

alexandr402 [8]3 years ago
7 0

Answer:

78 dollars

Step-by-step explanation

x=33  

y=45

have to leave.  Will check back with equation

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Since the exponent of the scientific notation is positive, move the decimal point  6  places to the right.

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A. Sin(0)=0.6<br> B.Cos(0)=0.75<br> C.Tan(0)=1.3<br> D. Cos(0)=0.8
LuckyWell [14K]

Answer:

its e

Step-by-step explanation:

7 0
2 years ago
(15.2*0.25-48.51/14.7)/x=(13/44-2/11-5/66/2.50)1.2/(3.2+0.8(5.5-3.25)
goldfiish [28.3K]

Answer:

x = 41.67

Step-by-step explanation:

The above equation, would be simplified or divided into parts;

Therefore, the given equation becomes;

A/x = B/C

Where;

A = (15.2*0.25-48.51/14.7)

B = (13/44-2/11-5/66/2.50)1.2

C = 3.2+0.8(5.5-3.25)

x = unknown variable.

<u>Part A</u>

(15.2*0.25-48.51/14.7) = (15.2*0.25 - 3.3)

A = (3.8 - 3.3)

A = 0.5

<u>Part B</u>

(13/44-2/11-5/66/2.50)1.2 = (0.3 - 0.18 - 0.030) * 1.2

B = 0.09 * 1.2

B = 0.108

<u>Part C</u>

(3.2+0.8(5.5-3.25)

C = 4*(2.25)

C = 9

<em>Substituting the values into the equation, we have;</em>

0.5/x = 0.108/9

<em>Cross-multiplying, we have;</em>

9 * 0.5 = 0.108x

4.5 = 0.108x

x = 4.5/0.108

x = 41.67

6 0
2 years ago
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