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Dominik [7]
2 years ago
15

Please help me with these questions and show how u got them, i will mark you brainliest !

Mathematics
1 answer:
lianna [129]2 years ago
4 0

Answer: 1) 25b   2) ac   3)ba

1) Since b is unknown, your answer will be 25b

2) Since both variables, a and c, are unknown, your answer will be ac

3) Since both are unknown here, it will be ba!

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Keiko bought 2 CDs that were each the same price. Including sales tax,she paid a total of $34.20. Of that total, $1.80 was tax.
snow_tiger [21]

Answer:

The cost of each CD without tax us $16.20

Step-by-step explanation:

Given that:

Price to two CDs with tax = $34.20

Tax = $1.80

Cost of CDs without tax = Total cost - Amount of tax

Cost of CDs without tax = 34.20 - 1.80 = $32.40

Price of each CD  = \frac{32.40}{2}

Price of each CD = $16.20

Hence,

The cost of each CD without tax us $16.20

8 0
2 years ago
Choose the correct preposition to complete the sentence. To facilitate a quick getaway, the cunning thief parked the car perpend
Vlad1618 [11]

Answer:

The answer is TO

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
Find the retail price original price: 119.00; Markdown: 70%
12345 [234]
First you substitute into the equation is/of=%/100. By that, I mean, 119/x=70/100. Cross multiply to get 119(100)=70x. Solve for x=170
4 0
3 years ago
Read 2 more answers
I do not understand this at all, can someone please help me with the steps in each question
Mandarinka [93]

Answer:

285 min

275 min

chi

tie

Step-by-step explanation:

swim - 1.5 km

bicycle ride - 40 km

run - 10 km

1) Alexandra

swim time = distance / velocity = 1.5 / 5 = 0.3 hr = 18 min

transition 1 time = 4 min

cycling time = distance / velocity = 40 / 15 = 2.6666667 hr = 160 min

transition 2 time = 3 min

run time = distance / velocity = 10 / 6 = 1.6666667 hr = 100 min

so total time to complete the triathlon is

= 18 + 4 +160 + 3 +100

= 285 min = 4.75 hrs

2) Chi

swim time = distance / velocity = 1.5 / 6 = 0.25 hr = 15 min

transition 1 time = 5 min

cycling time = distance / velocity = 40 / 15 = 2.6666667 hr = 160 min

transition 2 time = 5 min

run time = distance / velocity = 10 / 7.5 = 1.3333333 hr = 80 min

got flat tire that took 10 min to fix

so total time to complete the triathlon is

= 15 + 5 + 160 + 5 + 80 + 10

= 275 min

3) Alexandra won the race by 10 min

4)even though chi got flat tire , chi still won the race by 10 min,

if it took 20min to fix flat tire both their times would be 285 min and it would have been a tie.

6 0
2 years ago
Zero point three divided by zero point 9
RoseWind [281]

Answer:

0.33333

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
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