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Kaylis [27]
3 years ago
13

What is 3.405 written in expanded form

Mathematics
1 answer:
baherus [9]3 years ago
7 0
From what this number to solve it
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Can someone help me with this problem please?
Tom [10]

Answer:

senior tickets sold: 12

child tickets sold:8

Step-by-step explanation:

Let

x= amount of senior tickets sold

y= amount of child tickets sold

For the first equation, it should look like:

200=14x+4y

For the second equation, it should look like:

92=7x+y

So this is a systems of equations problem. So I will use substitution as it is easier:

1.) Take one of the equations (in this case ill take 92=7x+y) and make one variable have a value, in this case ill isolate the y.

(-7x)92=7x+y(-7x)

y=92-7x

2.) Take the value of y and plug it into "y" into the other equation to solve "x"

200= 14x + 4(92-7x)\\200=14x+368-28x\\(-368)200=-14x+368(-368)\\(-\frac{1}{14})* -168=-14x*(-\frac{1}{14} )\\\\x=12

<u><em>(editor's note:instead of dividing it by 14, I multiply by 1/14 as it would look complicated in the equation solving steps)</em></u>

3.) Then plug the value of "x" to one of the equations to solve for "y" (which I'll use the 92=7x+y)

92=7(12)+y\\(-84)92=84+y(-84)\\y=8

7 0
3 years ago
Read 2 more answers
Tyler can run a mile in 5½ minutes. Which is closest to this rate in feet per minute? a) 2,640
ValentinkaMS [17]
 you have to find how many feet r in a mile then divid that by 60 sec.
4 0
4 years ago
What is 6x-5y=22 <br> y= -8
tigry1 [53]
Just plug it in
So -5 times times -8 = positive 40 so
6x +40 =22
No it’s just an easy equation
22-40= -18
-18 divided by 6 = -3
So x = - 3
Your x,y coordinates are
(-3,-8)
5 0
3 years ago
Read 2 more answers
The triangles are similar. The area of the larger triangle 603cm2. what is the area of the smaller triangle?
tekilochka [14]

The smaller triangle is scaled by a factor of (18 cm)/(54 cm) = 1/3 of the larger triangle. The ratio of areas is the square of that scale factor.


small triangle area = (1/3)^2 × large triangle area

... = (1/9) × 603 cm^2

... = 67 cm^2


The appropriate choice is

... C. 67 cm^2

6 0
3 years ago
Can someone please explain to me how to solve this problem? I have the answer already all I need is to know how to solve the pro
omeli [17]

Answer:

Step-by-step explanation:

you have two supplementary angles,

both added up=180

7y+5y=12y

12y=180y=15

angle DBC=7y=15*7=105

5 0
3 years ago
Read 2 more answers
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