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Sliva [168]
3 years ago
6

A watch cost $120 more than a bracelet.a bussinessman paid $2590 for 3 such watches and 2 such bracelets.how much did a bracelet

cost?
​
Mathematics
1 answer:
Rainbow [258]3 years ago
4 0

Answer:

A bracelet cost $446

Step-by-step explanation:

3 Watch : 3(x + 120)

2 Bracelet : 2x

We have the equation:

3(x + 120) + 2x = 2590

3x + 360 + 2x = 2590

5x + 360 = 2590

5x = 2230

x = 446

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Hey factory could produce 84 toy robots in one day. The purchasing equipment. Now they can produce 105 robots in one day. What i
Finger [1]

Answer:

The answer to the question is

25 % increase in production rate

Step-by-step explanation:

To solve the question, we note that

Initial number of products = 84 toy robots per day

Present production rate = 105 robots per day

The percentage increase is given by the increase in production rate divided by the original production rate multiplied by 100

Where increase in production rate = 105 - 84 = 21

Percentage increase = 21/84 ×100 = 25 % increase

4 0
3 years ago
A pyramid has a square base and a height of 6 ft. The volume of the pyramid is 162 ft^3. Let s be the length of a side of the py
geniusboy [140]

Answer:

(a)s^2\\(b)162=2s^2\\(c)s=9$ ft

Step-by-step explanation:

(a)Base Area

Side length of square base=s

Area of a Square of side length s=s^2$ ft^2

(b)

  • Height =6 ft
  • Volume=162 $ ft^3.

Volume of a Pyramid=\frac{1}{3}X$Base Area X Height

Substituting the given values, we have:

162=\frac{1}{3}Xs^2 X 6\\\\162=2s^2

(c)Solving the equation derived from (b)

162=2s^2\\$Divide both sides by 2\\s^2=81\\s^2=9^2\\s=9$ ft

Solving this equation shows that s =9 ft.

4 0
3 years ago
Need help to simplify
N76 [4]
Hope this helps. If you have any further question ask in comments.

7 0
3 years ago
MZLON is a straight angle. a mZLOM = 4x + 30° mZMON = 8x + 90° Find mZMON:
Llana [10]

May be nxt tym!!!!!!!!!!

6 0
3 years ago
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Mike drivers 110 miles in 4 hours . what his rate of changed? explain.
Effectus [21]

The rate of change in this case is the speed of his car or how many miles he drives in one hour.

He drives 110 miles in 4 hours, which means he will drive 110/4 miles in 1 hour because 4 hours is four times greater than 1 hour.

110/4=27.5 miles

27.5 miles in one hour or 27.5 mph

answer: 27.5 mph

3 0
3 years ago
Read 2 more answers
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