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Sholpan [36]
4 years ago
7

In a certain apartment building the ratio of tenants to cars is 3:5. if there are 30 tenants, how many cars are there?

Mathematics
1 answer:
Fittoniya [83]4 years ago
6 0

Answer:

I want to say 50 cars

Step-by-step explanation:

If i am correct, there are more cars than people overall:

tenants to cars

3:5

so when you have 30 tenants you can multiply the cars by ten because that is what you did on the other side.

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Please help me,I give up on this.i just don’t get it.
Stolb23 [73]

Answer:

  1. y = -\frac{4}{5} x - \frac{14}{5}
  2. y = \frac{5}{4} x -11

Step-by-step explanation:

Given line ;

y = \frac{5}{4} x -3\\\\m = slope\\m = \frac{5}{4}

1. Perpendicular and passes through (4,-6)

m_1 = \frac{5}{4} \\\\m_2 = \frac{-1}{m_1} \\\\m_2 = \frac{-1}{\frac{5}{4} } \\\\m_2 = -\frac{4}{5} \\\\(4,-6)=(x ,y)\\

Substitute the values above into slope intercept form ; y=mx+b and solve for b.

y =mx+b\\\\-6 = -\frac{4}{5} (4) + b\\\\-6 = -\frac{16}{5} + b\\\\-6 + \frac{16}{5} = b\\\\-\frac{14}{5} = b\\\\b = -\frac{14}{5}\\\\m = - \frac{4}{5}

Substitute new values into ; y =mx+b.

y = -\frac{4}{5} (x)- (\frac{14}{5} )\\\\y = -\frac{4}{5} x - \frac{14}{5}

2.Parallel and passes through (4,-6)

m = \frac{5}{4} \\\\(4,-6)=(x_1,y_1)

Substitute values into point slope  form and simplify

y-y_1=m(x-x_1)\\\\y - (-6) = \frac{5}{4} (x -4)\\\\y+6 = \frac{5}{4} x -5\\\\y = \frac{5}{4} x -5-6\\\\y = \frac{5}{4} x -11

8 0
3 years ago
What are the constant terms in the expression? 13xyz+4+2z+5 out of these 13,13xyz,x, y, z,4,2,5
Kruka [31]
Constant terms are 4 and 5
13xyz is not because it is dependent on what x,y, and z 
and 2z the same thing
7 0
3 years ago
Can somebody help me with this question
Alexus [3.1K]
We start with:

y=2x-15
y=5x

Now, we have a perfectly set-up variable we can get rid of: <em>y.</em>

But we need to make either the top or bottom equation negative, so for simplicity, let's make the bottom one negative.

y=2x-15
(-y)=(-5x)

Now simplify.

-3x-15=0

Add 3x on both sides.

3x=15

Divide by 3 on both sides.

x=5



3 0
3 years ago
Read 2 more answers
Solve using substitution. x − 6y = –8 x + 6y = 16 please help imma fail
Romashka [77]

Answer:

x=−16/7

Step-by-step explanation:

happy to help ya :)

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3 years ago
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Georgia bought a pair of flip-flops that cost $3.46 and a pair of slip-on shoes that cost $9.87 She paid a total of $what for th
balu736 [363]
$13.33
Only information they give you is the prices unless i'm missing something.
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