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Flauer [41]
3 years ago
6

What is the value of x in the equation 2x + 3y= 36, when y=6

Mathematics
2 answers:
Lesechka [4]3 years ago
3 0
X=9 i hope this helps you !
Vladimir [108]3 years ago
3 0

Answer:

x = 9

Step-by-step explanation:

2x + 3(6)= 36

2x + 18= 36

    - 18    - 18

2x = 18

divide by 2

x= 9

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Brian cut a piece of cardboard in the shape of a trapezoid the area of the cut out is 43.5 cm² if the bases are 6 cm And 8.5 cm
Likurg_2 [28]

Answer: the height of the trapezoid is 6 cm

Step-by-step explanation:

The formula for determining the area of a trapezoid is expressed as

Area = 1/2(a + b)h

Where

a and b are the length of The bases are the 2 sides of the trapezoid which are parallel with one another.

h represents the height of the trapezoid.

From the information given,

a = 6 cm

b = 8.5 cm

If the area of the cut out is 43.5 cm², then

53.5 = 1/2(6 + 8.5)h

Cross multiplying by 2, it becomes

43.5 × 2 = (6 + 8.5)h

87 = 14.5h

h = 87/14.5 = 6 cm

8 0
3 years ago
A scale drawing of a rectangular painting is shown below. In the drawing, side E is 10 centimeters and side D is 24 centimeters.
Jobisdone [24]

Answer:

Side D is 0.78 feet (to 2 s.f.)

Step-by-step explanation:

In the Scale Drawing, side D=24 centimeters

1 foot = 30.48cm

x foot = 24 cm

Therefore:

24 X 1 = 30.48 X x

x= 24/30.48 =0.7874 feet

Side D is 0.78 feet (to 2 s.f.)

7 0
3 years ago
3) the product of n and 9​
insens350 [35]

Answer:

9n

Step-by-step explanation:

i mean 9 x n = 9n. straight forward...

8 0
3 years ago
Plz help!
zloy xaker [14]
The factored expression is: 3(5n-6)
The GCF between 15 and 18 is 3. So you would divide both numbers by 3. That would leave you with 5 taking the place of 15 and 6 taking the place of 18. Then you would fill in the blanks. Three multiplied by the expression 5n-6 would give you your original expression of 15n-18.
8 0
3 years ago
A train that is 1 mile long starts through a tunnel that is also 1mile long . The train is traveling 15 miles per hour. How long
bearhunter [10]
12 minutes because it is three miles into for the train to go completely in and out (one mile for the nose to enter, on mile for the nose to exit and tail enter, and one mile for tail to exit). 3/15=x/60 
6 0
3 years ago
Read 2 more answers
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