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3 years ago

Which expression is equivalent to 28/19/100

1 answer:

4 0

<span>The expression that is equivalent to that number is </span>20 + 8 + 0.1 + 0.09.

This is because the whole number 28 has a 2 in the tens place, meaning it has 2 tens, and 10x2=20. Same goes for the 8 in the ones place (8x1=8)
20+8=28. Then, 19/100 is equal to 0.19, which has a 1 in the tenths place and a 9 in the hundreths place put together to get 28.19

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PLS HELP ME ILL GIVE BRAINLIEST TO THE BEST ANSWER!!!!!!!!!!!!!!!!!!!!!!!!

Eva8 [605]

1/256! you simply then evaluate and get 1/256

5 0

3 years ago

Read 2 more answers

Andrew wants to ride his bicycle 36 miles this week. He has already ridden 18 miles. If he rides for 5 more days, what is the av

Vinvika [58]

Answer:

I am pretty sure the answer is 4

Step-by-step explanation:

because 4 × 5 = 20 and 18 + 20 = 38

so if he rides 4 miles for 5 more days he will reach 38

(hope that helped)

3 0

3 years ago

a man spends 42% of his salary on food and 12% on transport. if the amount he spent on food is Rs 16800, how much was his transp

FinnZ [79.3K]

The man's transport cost is Rs 4800

Step-by-step explanation:

Step 1: Given that the amount the man spent on food = Rs 16800 which is 42% of his salary. Form an equation where his salary is x.

42% of x = 16800

42/100 × x = 16800

42x = 1,680,000

x = 1,680,000/42 = Rs 40,000

∴ Salary is Rs 40,000

Step 2: Calculate the man's transport cost.

12% of 40000 = 12/100 × 40000 = Rs 4800

8 0

3 years ago

Use sigma notation to represent the sum of the first seven terms of the following sequence -4,-6,-8.....

lina2011 [118]

Answer:Answer:

$\sum\left {{7} \atop {1}} \right -n(3+n)$

Step-by-step explanation:

Given the sequence -4,-6,-8..., in order to get sigma notation to represent the sum of the first seven terms of the sequence, we need to first calculate the sum of the first seven terms of the sequence as shown;

The sum of an arithmetic series is expressed as $S_n = \frac{n}{2}[2a+(n-1)d]$

n is the number of terms

a is the first term of the sequence

d is the common difference

Given parameters

n = 7, a = -4 and d = -6-(-4) = -8-(-6) = -2

Required

Sum of the first seven terms of the sequence

$S_7 = \frac{7}{2}[2(-4)+(7-1)(-2)]\\\\S_7 = \frac{7}{2}[-8+(6)(-2)]\\\\S_7 = \frac{7}{2}[-8-12]\\\\\\S_7 = \frac{7}{2} * -20\\\\S_7 = -70$

The sum of the nth term of the sequence will be;

$S_n = \frac{n}{2}[2(-4)+(n-1)(-2)]\\\\S_n = \frac{n}{2}[-8+(-2n+2)]\\\\S_n = \frac{n}{2}[-6-2n]\\\\S_n = \frac{-6n}{2} - \frac{2n^2}{2}\\S_n = -3n-n^2\\\\S_n = -n(3+n)$

The sigma notation will be expressed as $\sum\left {{7} \atop {1}} \right -n(3+n)$ . <em>The limit ranges from 1 to 7 since we are to find the sum of the first seven terms of the series.</em>

3 0

3 years ago

The temperature dropped overnight by 5.6° Fahrenheit every hour. What was the change in temperature after 4 hours?

sweet-ann [11.9K]

The answer is d because if you multiply -5.6° by 4 you will get -22.4°

6 0

3 years ago