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Talja [164]
3 years ago
15

An architect makes a scale drawing of a building. The scale used is 1 cm represents 20 m. Calculate the actual width of the buil

ding if the width on scale drawing is 24.5 cm
Mathematics
1 answer:
AleksandrR [38]3 years ago
3 0

Answer: 490 m

Step-by-step explanation:

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Given ​f(x)=20x+11​, find ​f(4​)
kakasveta [241]

Answer:

91

Step-by-step explanation:

Substitute 4 in place of x

f(4)=20*4+11

f(4)=80+11

f(4)=91

3 0
2 years ago
What is the distance between (4,7) and (2,2)?
algol [13]
\bf \textit{distance between 2 points}\\ \quad \\
\begin{array}{lllll}
&x_1&y_1&x_2&y_2\\
%  (a,b)
&({{ 4}}\quad ,&{{ 7}})\quad 
%  (c,d)
&({{ 2}}\quad ,&{{ 2}})
\end{array}\qquad 
%  distance value
d = \sqrt{({{ x_2}}-{{ x_1}})^2 + ({{ y_2}}-{{ y_1}})^2}
\\\\\\
d=\sqrt{(2-4)^2+(2-7)^2}\implies d=\sqrt{(-2)^2+(-5)^2}
\\\\\\
d=\sqrt{4+25}\implies d=\sqrt{29}
7 0
2 years ago
The sales tax for an item is $44.10 and it cost $490 before tax. find the sales tax rate. write your answer as a percentage
svetoff [14.1K]

Answer:

9% sales tax

Step-by-step explanation:

44.10/490 =

.09

.09 as a percentage is also 9%

6 0
3 years ago
What is the probability of the complement of rolling a number less than 5 by using a six-sided die?
elena-14-01-66 [18.8K]
If 5 and less then D but if just less than 5 then B
6 0
3 years ago
X:y=5:3 and x+y=56 work ouy the value of x and y​
emmainna [20.7K]

Answer:

x=35, y=21

Step-by-step explanation:

A way to rewrite the first equation is  \frac{x}{y} =\frac{5}{3}

after cross-multiplying, we get 3x=5y.

If we solve for one variable, we can substitute it into the other equation.

Let's solve for x.

3x=5y

x=(5/3)y

Now, we can substitute x=(5/3)y in the equation x+y=56.

(5/3)y+y=56

(8/3)y=56

y=21

Going back to x+y=56, we can now plug back in y, knowing that it is 21.

x+21=56

x=35.

8 0
2 years ago
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