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DIA [1.3K]
3 years ago
11

The triangles are similar.

Mathematics
2 answers:
MrMuchimi3 years ago
7 0
25/5 = 5
and also 
15/3 = 5
so
(3x+ 8)/5 = 4
3x + 8 = 20
3x = 12
  x = 12/3
  x = 4

answer is x = 4
Igoryamba3 years ago
6 0
3x + 8 = 4 * 5 = 20
x = 4
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AURORKA [14]

Answer:

<h2>He is going to pay 40*900= $36000 for the reservation</h2>

Step-by-step explanation:

Step one:

We are told that they need at least 50 total rooms.

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Required

The Number of blocks Joe need to reserve in addition is 34/8

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4 0
2 years ago
The points , (−15,1) and , (−7,r) lie on a line with slope 5/4. Find the missing coordinate r. Click image to enlarge
Nadya [2.5K]

The missing coordinate r is 11.

Solution:

Given points are (–15, 1) and (–7, r).

x_{1}=-15, x_{2}=-7, y_{1}=1 \text { and } y_{2}=7

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<u>To find the missing coordinate r:</u>

Slope formula:

$m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}$

Substitute the given values in the formula.

$\frac{5}{4}=\frac{r-1}{-7-(-15)}

$\frac{5}{4}=\frac{r-1}{-7+15}

$\frac{5}{4}=\frac{r-1}{8}

Do cross multiplication.

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40 = 4r – 4

Add 4 on both side of the equation.

44 = 4r

Divide by 4 on both side of the equation.

11 = r

⇒ r = 11

Hence the missing coordinate r is 11.

6 0
3 years ago
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vredina [299]

Answer:

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Step-by-step explanation:

Multiply 40 by 0.125 (12.5%) and you get 5

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35

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The two formulas i used should be in your book

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Dafna11 [192]
The answer is 0.79g/cm^2

Density is just mass divided by volume.
So it was 150/189
8 0
3 years ago
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