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3 years ago

What is the least whole number that replaces blank divided by 21 greater than 13

Mathematics

2 answers:

77julia77 [94]3 years ago

5 0

Answer:

274 divided by 21 is greater than 13

Step-by-step explanation:

Let x represented the our required number number.

We have been given that a number is divided by 2 is greater than 13. We can represent this information in an inequality as:

$\frac{x}{21}>13$

$\frac{x}{21}*21>13*21$

$x>273$

Since x is greater than 273, so least whole number value for x is 274.

Therefore, the least whole number that fits our given condition is 274.

Phantasy [73]3 years ago

3 0

You want to find the value of __ such that

... __ / 21 > 13

Multiply by 21.

... __ > 21·13

... __ > 273

The smallest whole number greater than 273 is 274.

_____

That is, 274/21 > 13

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3 years ago

Convert 1 cal/(m^2 * sec * °C) into BTU/(ft^2 * hr * °F)

Crazy boy [7]

Answer:

$1\ \frac{\text{cal}}{m^2\times sec\times ^\circ C}=0.03926\frac{\text{BTU}}{ft^2\times hr\times ^\circ F}$

Step-by-step explanation:

To find : Convert $1\ \frac{\text{cal}}{m^2\times sec\times ^\circ C}$ into $\frac{\text{BTU}}{ft^2\times hr\times ^\circ F}$

Solution :

We convert units one by one,

$1\text{ m}^2=10.7639\text{ ft}^2$

$1\text{ sec}=\frac{1}{3600}\text{ hour}$

$1\text{ cal}=0.003968\text{ BTU}$

Converting temperature unit,

$^\circ C\times \frac{9}{5}+32=^\circ F$

$1^\circ C\times \frac{9}{5}+32=33.8^\circ F$

So, $1^\circ C=33.8^\circ F$

Substitute all the values in the unit conversion,

$1\ \frac{\text{cal}}{m^2\times sec\times ^\circ C}=\frac{0.003968}{10.7639\times \frac{1}{3600}\times 33.8}\frac{\text{BTU}}{ft^2\times hr\times ^\circ F}$

$1\ \frac{\text{cal}}{m^2\times sec\times ^\circ C}=\frac{0.003968}{0.101061}\frac{\text{BTU}}{ft^2\times hr\times ^\circ F}$

$1\ \frac{\text{cal}}{m^2\times sec\times ^\circ C}=0.03926\frac{\text{BTU}}{ft^2\times hr\times ^\circ F}$

Therefore, The conversion of unit is $1\ \frac{\text{cal}}{m^2\times sec\times ^\circ C}=0.03926\frac{\text{BTU}}{ft^2\times hr\times ^\circ F}$

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3 years ago

Solve the inequality.<br><br> 2(4 + 2x) ≥ 5x + 5?<br><br> x ≤ ?

NikAS [45]

2(4+2x)≥5x+5
4+2x≥5/2x+5/2 (divide both sides by 2)
3/2+2x≥5/2x (subtract 5/2 from both sides)
3/2≥1/2x (subtract 2x from both sides)
3≥x (multiply both sides by 2)
or x≤3

Hope this helps

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3 years ago

Read 2 more answers

Please help me I have 10 minutes!!

Diano4ka-milaya [45]

Answer:

it's d

Step-by-step explanation:

≤ may refer to:

Inequality (mathematics), relation between values; a ≤ b means "a is less than or equal to b"

so the answer D is right because the face always ponit to the bigger number if x is -14 then this stament would be true

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