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Rufina [12.5K]
3 years ago
7

Which equation can be used to solve for in the following diagram? (8x - 20)° 3xº

Mathematics
1 answer:
gayaneshka [121]3 years ago
7 0

Answer:

  • A. 3x° + (8x - 20)° = 90°

Step-by-step explanation:

The two given angles are complementary and sum to 90°

  • 3x° + (8x - 20)° = 90°

Therefore correct choice is A.

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A savings account earns 8% interest each year, compounded annually. If a person invests
Lyrx [107]

Answer:

100(1+8/100)5=146,93

Step-by-step explanation:

then take 100-146,93=46,93

6 0
3 years ago
Ms. Fox loves to eat cereal and she notices that she only has 1/3 of the box of cereal left. If she spread that amount across 5
IceJOKER [234]

Answer:

1/15

Step-by-step explanation:

Ms. Fox loves to eat cereal and she notices that she only has 1/3 of the box of cereal left. If she spread that amount across 5 days, how much cereal will she have for each day?

The amount of cereal she would have per day is calculated as:

5 days = 1/3 of the box

1 day = x

Cross Multiply

5 days × x = 1 day × 1/3 of the box

x = 1/3 ÷ 5

x = 1/3 × 1/5

x = 1/15 of the box

8 0
3 years ago
How can you use properties to solve equations with variable on both sides
vaieri [72.5K]
<span>1. know what the variables are and identify them 2. Group all the same types together that are on one side 3. add or subtract whole numbers so they are on one side 4. add or subtract variables 5. Multiply or Divide the variables to get them to one side </span>
4 0
3 years ago
A kid’s bicycle costs $110.00 at a department store, who is offering a 15% off coupon. Determine the final price of the bike aft
agasfer [191]

Answer:

<h3>100.375</h3>

Step-by-step explanation:

so 110

110/100=1.1

*15

16.5

16.5 dollar coupon

ok then sales tax

1.1*6.25

6.875

sales tax is 6.875

110-16.5

93.5

93.5+sales tax 6.875

100.375

final price 100.375

hope this helps!!

3 0
3 years ago
Rohit takes4 4/5minutes to make a complete round of a circular park.How much time hi will take to make 15rounds​
jolli1 [7]

Answer:

Rohit takes 4 4/5 minutes ( =4.8 minutes) to make a complete round of a circular park. For finishing 15 rounds, he needs time T:

T = 15 x 4.8 = 72 minutes

Hope this helps!

:)

6 0
3 years ago
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