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2 years ago

160% of what number is 144

Mathematics

1 answer:

givi [52]2 years ago

6 0

Step-by-step explanation:

Let the number be x

160% of x=144

$160x \div 100 = 144$

then we cross multiply

$160x = 100 \times 144$

$160x = 14400$

divide both sides by 160

$160x \div 160 = 14400 \div 160$

$x = 90$

therefore the number is 90

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Lisa [10]

Answer:

B. 200 doses

Step-by-step explanation:

Given,

1 dose is required for 100 mg,

Since, 1 mg = 0.001 g,

⇒ 100 mg = 0.1 g

⇒ 1 dost is required for 0.1 g,

Thus, the ratio of doses and quantity ( in gram ) is $\frac{1}{0.1}=10$

Let x be the doses required for 20 grams,

So, the ratio of doses and quantity is $\frac{x}{20}$

$\implies \frac{x}{20}=10$

$\implies x=200$

Hence, 200 doses can be obtained from 20 grams of the drug.

Option 'B' is correct.

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2 years ago

I need help with this I’ll mark you if right

Alina [70]

Answer: D

Example: none there is no Example

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2 years ago

Read 2 more answers

7.6375 correct to 2 decimal place

ANTONII [103]

7.6375 =

1 Decimal Place = 7.6
2 Decimal Place = 7.64
3 Decimal Place = 7.638
4 Decimal Place = 7.6375

So the answer is 7.64 .
The 3 rounds up because 7 is bigger than 5...

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3 years ago

Which statements are true about the circle shown below? Select two options. A circle with radius 31.4 centimeters. The diameter

Advocard [28]

C,D

Step-by-step explanation:

E d g e n u i t y

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2 years ago

I need help with this

Snezhnost [94]

Answer:

$y = - \frac{1}{2} x + 4$

Step-by-step explanation:

Let us consider two points through which the line passes through

$(x_1 , y _ 1 ) = ( 0 , 4 ) \ and \ (x_ 2 , y _ 2 ) = ( 4, 2 )$

Step 1 : Find slope of the line

$Slope, m_1 = \frac{rise}{run} \\\\That \ is \ m_1 \ = \frac{y_2 - y _ 1}{x_2 - x_1}$

$= \frac{2 - 4}{4-0} \\\\=-\frac{2}{4}\\\\= - \frac{1}{2}$

Step 2 : Find equation of the line.

$(y - y _ 1) = m_ 1 (x - x_1)\\\\( y - 4) = - \frac{1}{2}(x - 0)\\\\y = -\frac{1}{2}x + 4$

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2 years ago