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Triss [41]
3 years ago
13

98 is 35% of what number

Mathematics
2 answers:
deff fn [24]3 years ago
8 0
'is' in mathematics means equal
'of' in mathematics means multiplication

<span>35% can also be written as 35/100

</span>98 = \frac{35}{100} \times x\\\\98 \times \frac{100}{35} = x\\\\ x = \frac{9800}{35}\\\\x = \boxed{\bf{280}}<span>
</span>
Ratling [72]3 years ago
4 0

<u><em>Answer:</em></u>

The number is 280


<u><em>Explanation:</em></u>

Assume that the number we are looking for is x


<u>We are given that:</u>

35% of the number is 98


<u>This means that:</u>

35% * x = 98

0.35x = 98

x = \frac{98}{0.35}

x = 280


Hope this helps :)

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a 34 gram sample of a substance that's used to treat thyroid disorders has a k-value of 0.137. find the substance's half-life, i
Ira Lisetskai [31]

Answer:

5.1 days

Step-by-step explanation:

Given in the question,

initial amount of substance = 34 grams

k-value = 0.137

To find the half life of this substance we will use following formula

N(0)/2 = N(0)e^{-kt}

here N(0) is initial amount of substance

        t is time in days

Plug values in the formula

34 /2 = 34e^{-0.137t}

1/2 = e^{-0.137t}

Take logarithm on both sides

ln(1/2) = ln( e^{-0.137t})

ln(1/2) = -0.137t

t = ln(1/2) / -0.137

t = 5.059

t ≈ 5.1 days (nearest to tenths)

3 0
3 years ago
How to convert 3.248 repeating decimal with 48 repeating into a simplified fraction
Sonja [21]

Answer:

x=\frac{536}{165}

Step-by-step explanation:

Let X be the value of 3.2484848.... infinite times

Multiply by 100

x=3.24848....\\100x = 324.8484.....

Subtract to get

100x-x = 324.8484...-3.248484....\\99x = 321.60\\x=\frac{321.6}{99} \\x=\frac{1072}{330} \\x=\frac{536}{165}

Thus the number 3.248 repeating decimal with 48 repeating in fraction form is

\frac{536}{165}

7 0
3 years ago
Read 2 more answers
I need help with this pleaseee!!
soldi70 [24.7K]
A. No
B. No
C. Yes(probably)
D. Yes
(Sorry if these are wrong :’) good luck!)
3 0
2 years ago
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Tamia is getting balloons for her father's birthday party. She wants each balloon string to be 6 feet long. At the party store,
Alexxx [7]

Answer:

118 yards

Step-by-step explanation:

Tamia is getting balloons for her father's birthday party

She wants each balloon to be 6 feet long

Tamia wants to get 59 balloons

Therefore the yards of string needed can be calculated as follows

= 59×6

= 354 feet to yards

= 118 yards

Hence the number of yards needed is 118 yards

5 0
2 years ago
Use the Pythagorean theorem to answer 4 5 and 6
Lady bird [3.3K]
Okay, the formula for this would be


a^{2} + b^{2} = c^{2}


Lets start with 4.

7^{2} + 25^{2} = c^{2}

Simplify.

49 + 625 = c^{2}

674 = c

c = \sqrt{674}
 
c = 25.96

Which is ≈ 26

4 0
3 years ago
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