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3 years ago

) The jar has a total of 220 marbles. The table shows the estimates of three different students

Mathematics

1 answer:

EastWind [94]3 years ago

3 0

Answer: 25%

Step-by-step explanation: 55 divided by 220 you get 0.25 move the decimal 2 places to the right. And you get 25% your welcome

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Can someone help me with this: Eighty, decreased by three times an number, is the same as five times the number, increased by ei

enot [183]

Eighty, decreased by three times an number, is the same as five times the number, increased by eight. Then the number is 9

<h3><u>Solution:</u></h3>

Given that eighty, decreased by three times an number, is the same as five times the number, increased by eight

<em><u>To find: the number</u></em>

Let the required number be "a"

Let us break the given sentence

<em>Eighty decreased by three times an number = five times the number increased by eight</em>

Here "times" represents multiplication and "decreased" represents subtraction and "increased represents "addition"

80 - three times "a" = 5 times "a" + 8

80 - 3a = 5a + 8

80 - 8 = 5a + 3a

8a = 72

Thus the required number is 9

6 0

3 years ago

Ostrovityanka [42]

Answer:

integers, rational numbers

Explanation:

Integers are any whole number (positive or negative). -5 is a whole number, not a fraction or decimal.

Rational numbers can be written in the fraction form a/b where a and b are both integers and b does not equal 0. -5 can be written as -5/1.

4 0

3 years ago

write a compound inequality that represents the situation. all real numbers that are greater than –6 but less than 6 a. –6 ≤ x &

natali 33 [55]

<span>All real numbers that are greater than –6 but less than 6 is written as -6 < x < 6</span>

4 0

3 years ago

Given the recursive formula for an arithmetic sequence find the common difference and the 52nd term

Mice21 [21]

Answer:

Common difference(d) $a_{52}$

(21) -10 -548

(22) -7 -323

(23) 10 547

(24) -100 -5118

Step-by-step explanation:

Let the common difference be denoted by 'd'.

Also the nth difference of an arithmetic sequence is given by: $a_{n}=a_{1}+(n-1)\times d$

(21)

We are given a recursive formula as:

$a_{n}=a_{n-1}-10$

The first term is given by:

$a_{1}=-38$

The common difference for an arithmetic sequence is given by:

$a_{n}-a_{n-1}$

Hence, here we have the common difference as:

$d=-10$

The nth term of an arithmetic sequence is given by:

$a_{n}=a_{1}+(n-1)\times d$

Here $a_{1}=-38$ and $d=-10$ .

Hence, $a_{52}=-38+(52-1)\times (-10)$

Hence, $a_{52}=-548$

(22)

$a_{n}=a_{n-1}-7$

$a_{1}=34$

The common difference for an arithmetic sequence is given by:

$a_{n}-a_{n-1}$

Hence, here we have the common difference as:

$d=-7$

Here $a_{1}=34$ and $d=-7$ .

Hence, $a_{52}=34+(52-1)\times (-7)$

Hence, $a_{52}=-323$

(23)

$a_{n}=a_{n-1}+10$

$a_{1}=37$

The common difference for an arithmetic sequence is given by:

$a_{n}-a_{n-1}$

Hence, here we have the common difference as:

$d=10$

Here $a_{1}=37$ and $d=10$ .

Hence, $a_{52}=37+(52-1)\times (10)$

Hence, $a_{52}=547$

(24)

$a_{n}=a_{n-1}-100$

$a_{1}=-18$

The common difference for an arithmetic sequence is given by:

$a_{n}-a_{n-1}$

Hence, here we have the common difference as:

$d=-100$

Here $a_{1}=-18$ and $d=-100$ .

Hence, $a_{52}=-18+(52-1)\times (-100)$

Hence, $a_{52}=-5118$

5 0

4 years ago

Data was collected on the average winter temperature and the number of days with snow of a random groupof cities in the United S

fiasKO [112]

Answer:

d. negative correlation

Step-by-step explanation:

Two variables are positive correlated when one goes up or down the other goes in the same direction and they are negative correlated when one goes up or down the other variable goes in the other direction.

In this case, the higher the temperature rises, the less snow. Therefore we have a negative correlation

5 0

3 years ago