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marissa [1.9K]
3 years ago
13

What is the value of the expression below when simplified? 4[5(3 − 1)]2 − 23

Mathematics
2 answers:
Setler [38]3 years ago
7 0
Simplify the expression.
57
Hope this helps! :)
Happy New Year!
DerKrebs [107]3 years ago
5 0
4[5(3-1)]2-23= 4[5 x 4]2 -23= 4[20]2 -23= 160-23= 137
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Cities A & B are 5 inches apart on a map. Cities Ce Dare 4 inches apart. If C & D are 900 miles apart how many miles apa
Afina-wow [57]

Answer:

<u>Cities A and B are 1,125 miles apart</u>

Step-by-step explanation:

1. Let's review the information given to us to answer the question correctly:

Distance between A and B in the map = 5 inches

Distance between C and D in the map = 4 inches

Real distance between C and D = 900 miles

2. How many miles apart are cities A and B?

We will solve the question, using Direct Rule of Three, as follows:

Distance in the map      Real distance

A - B     5 inches                    x

C - D     4 inches                900 miles

***************************************************

4x = 900 * 5

4x = 4,500

x = 4,500/4

x = 1,125 miles

<u>Cities A and B are 1,125 miles apart</u>

Same answer to question 14701120, answered by me today

8 0
3 years ago
A square has an area of 4ft. What is the length of watch side
ohaa [14]

Answer:

2

Step-by-step explanation:

square have the same side length is the area is 4 you would have to find what number that you can multiply by itself twice (ex: 2x2) that gets you four the only number does that is 2

6 0
3 years ago
Read 2 more answers
Help please...............
USPshnik [31]

Answer:

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6 0
3 years ago
What is the value of x in the solution to the system of linear equations?
Romashka [77]

Answer:

i think it is C

Step-by-step explanation

are the only equivalent answer to y and v

6 0
3 years ago
A and B working together can do a work in 6 days. If A takes 5 days less than B to finish the work, in how many days B alone can
svetlana [45]

Answer:

15 days

Step-by-step explanation:

Let x be the number of days needed for B to complete the job. Then x-5 is the number of days needed for A to complete the job.

In 1 day,

  • A completes \dfrac{1}{x-5} of all work;
  • B completes \dfrac{1}{x} of all work.

Hence, in 1 day both A and B complete \dfrac{1}{x-5}+\dfrac{1}{x} of all work. A and B working together can do a work in 6 days. Then

6\cdot \left(\dfrac{1}{x-5}+\dfrac{1}{x}\right)=1.

Solve this equation:

\dfrac{6x+6x-30}{x(x-5)}=1,\\ \\12x-30=x^2-5x,\\ \\x^2-17x+30=0,\\ \\D=(-17)^2-4\cdot 30=289-120=169=13^2,\\ \\x_{1,2}=\dfrac{17\pm 13}{2}=2,\ 15.

If x=2, then x-5=-3 that is impossible. So, B needs 15 days to complete the work alone.

6 0
3 years ago
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