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3 years ago

What is the value of the underline digit? 9.521

Mathematics

2 answers:

Aleksandr-060686 [28]3 years ago

6 0

Answer: one

Step-by-step explanation:

Lynna [10]3 years ago

4 0

Answer:

Step-by-step explanation:

If 9 was underlined it would be 9 ones

If it was 5, 5 tenths

If it was 2, 2 hundreths

If it was 1, 1 thousandth

Hope this helps:)

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Ishaan is 2 times as old as Christopher. 35 years ago, ishaan was 7 times as old as Christopher

Natalija [7]

Answer:The present age of both of them are Christopher = 42 years, and Ishaan = 84 years.

Step-by-step explanation: Solution:

Let present age of:

Christopher =

yrs

Ishaan =

yrs ( given that Ishaan is 2 times as old as Christopher)

35 yrs ago:

Age of Christopher = (

- 35)yrs

Age of Ishaan = (

- 35) yrs

According to question, 35 yrs back, Ishaan was 7 times older than Christopher.

Therefore

7 X (

- 35) = (

- 35)

- 245 =

- 35

= 245 - 35

= 210

= 42

So present age of Christopher =

= 42 yrs

Present age of Ishaan =

= 84 yrs

Check your solution:

As 84 is 2 times of 42 so Ishaan is 2 times older than Christopher.

35 yrs ago, Christopher was (42 - 35) = 7 yrs old and Ishaan was (84 - 35) = 49 yrs old so Ishaan was 7 times older than Christopher then.

6 0

3 years ago

a food truck sells salads for 6.50 each and drinks for 2.00 each. The food truck's revenue from selling a total of 209 salads an

kati45 [8]

S+d=209
d=209-s
6.5s+2d=836.5
6.5s+2(209-s)=836.5
6.5s+418-2s=836.5
4.5s+418=836.5
4.5s=418.5
s=93

There were 93 salads sold that day.

4 0

3 years ago

a boat makes a 120-mile trip downstream in 3 hours but makes the return trip in 4 hours. what is the rate of the boat in still w

Tpy6a [65]

Let b equal the speed of the boat in still water.
Let c equal the speed of the current.
Going downstream, we can write the equation:
$b+c=\frac{120}{3}$
which can be rearranged to:
3b + 3c = 120 ............(1)
Going upstream, we can write the equation:
$b-c=\frac{120}{4}$
which can be rearranged to:
4b - 4c = 120 .............(2)
Multiplying equation (1) by 4, and multiplying equation (2) by 3 we get:
12b + 12c = 480 ........(3)
12b - 12c = 360 .........(4)
Adding equations (3) and (4) results in the following equation:
24b = 840
$b=\frac{840}{24}=35\ mph$

7 0

4 years ago

Grayson wanted to get the best deal possible on a new TV. The TV in which he was interested was originally priced at $799. He fo

Lana71 [14]

Answer:

$39.95

Step-by-step explanation:

Thus, a product that normally costs $799 with a 5 percent discount will cost you $759.05, and you saved $39.95. You can also calculate how much you save by simply moving the period in 5.00 percent two spaces to the left, and then multiply the result by $799 as follows: $799 x . 05 = $39.95 savings.

6 0

3 years ago

Which of the following is an irrational number A)-5 B)3.5 C) 5.893 D)1/2

Arada [10]

The answer is c) 5.893

5 0

4 years ago

Read 2 more answers