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Mamont248 [21]
2 years ago
7

Kyle is buying a $220 bicycle. If the bicycle is on sale for 35% off, how much will he save? ​

Mathematics
1 answer:
Mrac [35]2 years ago
8 0

Answer:

D

Step-by-step explanation:

Discount = 35% of 220

              = \dfrac{35}{100}*220\\\\= 7 * 11

              = $ 77

Amount saved =$ 77

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Solve the equation and determine whether it is an identity or has no solution.
maksim [4K]
I got -5 & 2/5 because
2/3x and 3/5 can be made into
20/30x and 18/30

And then by adding 2 to -2
And adding 2 to 4

The equation becomes
20/30x + 6 = 18/30

Then I subtracted 6 from 18/30 and got
20/30x = -5 & 2/5

Then simplified that to

2/3x = -5 & 2/5

That's just what I think you should do.
7 0
3 years ago
Sarah has $400 in a savings account at the beginning of the summer. She wants to have more than $150 left in her account by the
sergiy2304 [10]

Answer:

10 weeks

Step-by-step explanation:

400-150=250/25=10

7 0
3 years ago
Read 2 more answers
In 2016, the population of the United States was approximately 3.24 x 10^8. It is expected that the population will be about 3.9
aleksandrvk [35]

Answer:

7.4 x 10^7

Step-by-step explanation:

3.98 x 10^8 - 3.24 x 10^8 = 0.74 x 10^8 (not scientific notation, because it isn't full number)

0.74 x 10^8 ---> 7.4 x 10^7

   - got seven by counting the spaces it moved over (right decrease, while left increases)

5 0
3 years ago
Kristen just deposited $6,500 into a new bank account that pays 4.5% interest the first year and 3% compounded annually each yea
vladimir2022 [97]

This question is about compound interest, but since the interest is such a small number you can use what you know about simple interest to eliminate some answers.

You can immediately eliminate choice A as a clunker, since it is less than the original amount in the account.

Consider what the amount of interest would be if you make the rate much larger than the original rate, say 10%, or 0.1:

$6,500 × 0.1 = $650

If this amount were added to the original amount each year for two years, the total would be:

$6,500 + $650 + $650 = $6,500 + $1,300 = $7,800

This is an over-estimate for the information given, and since choices C and D are even greater than this over-estimate, they can be eliminated. That means choice B is the correct answer.

6 0
3 years ago
Read 2 more answers
The points (-18,15) and (-20,15) lie on a circle with a radius of 1. Find the coordinates of the center of the circle.
FromTheMoon [43]
.hello :
an equation of the circle <span>Center at the w(a,b) and ridus : r is :
(x-a)² +(y-b)² = r²
in this exercice : r = 1
</span><span>The points (-18,15) and (-20,15) lie on a circle with a radius of 1:
</span>(-18-a)²+(15-b)² = 1 ....(1)
(-20-a)² +(15-b)² = 1 ....(2)
solve this system :
(1) -(2) : (-18-a)² - (-20-a)² =0
(-18-a)² =(-20-a)² =0
( -18-a = -20-a) or (-18-a = - (-20-a))
1 )  ( -18-a = -20-a) no solution confused : -18=-20
2 ) -18-a =20+a
      -2a =38
      a = -19 
subst in (1) :(-18+19)²+(15-b)² =1
(15-b)² = 0.... 15-b = 0     .... b = 15
the center is :w(-19,15)
  
6 0
3 years ago
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