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worty [1.4K]
2 years ago
6

X+y=73x+y=15solve by substitution method​

Mathematics
1 answer:
Bess [88]2 years ago
7 0

Step-by-step explanation:

x =7-y

subs x in eqn 2

3(7-y)+y=15

21-3y+y=15

21-2y=15

21-15=2y

6=2y

y=6/2

y=3

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What is the sum of the angle measures of a 37 gon?
Airida [17]

Answer:

The sum of the interior angles with n number of sides is solved through the equation,

                               S = 180 x (n - 2)

For 37 - gon,

                                S = 180 x (37 - 2) = 6300

Thus, the sum of the interior angles of a 37-gon is 6300°

Step-by-step explanation:

5 0
3 years ago
Sam is baking cakes at her parent’s bakery. She gets paid 20 a week in addition to 5 for every cake she bakes. She made 50 this
denis-greek [22]

Answer:

i think it is 20 + 5x = 50    or  f(x)=2(3^x)

Step-by-step explanation:

equation to show how many cakes sam baked this week:

20 + 5x = 50

20 = 20 dollars

5 = 5 more dollars

x = number of cakes

therefore, sam earned $50 this week.

4 0
3 years ago
Read 2 more answers
Plz help me with this
Sonbull [250]
1) this is total area of two triangle
area of a triangle=1/2*b*h
A=1/2*9*4
A=18 inches^2
multiply by 2 because there are two triangle with same measure
2A=2*18=36 inches^2

3) this is a area of rectangle and a triangle and then subtract
A2=9.3x7.8= 72.54 
area of triangle A1=1/2*7.8 *3.3=12.87
A2-A1=59.69 mm^2

5) now u ca do it


4 0
3 years ago
the size of the second application is 3.45 MB less than he first application. What is the size of the second application
mr_godi [17]

The size of the second application given the size of the first application and the expression ( x - 3.45 mb) for the size of the second application is 293.55 MB.

<h3>Equation</h3>

Let

  • Size of the first application = x

  • Size of the second application= x - 3.45 mb

For instance,

if the size of the first application is 297 MB

Size of the second application= x - 3.45 mb

= 297 MB - 3.45 MB

= 293.55 MB

Therefore, the size of the second application given the size of the first application and the expression for the size of the second application is 293.55 MB

Learn more about equation:

brainly.com/question/2972832

#SPJ1

6 0
1 year ago
What is the measurement of angle ABC?
MA_775_DIABLO [31]

The measurement of angle ABC is

B) 217 1/2

Hope this helps...

8 0
3 years ago
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