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3 years ago

The sum of a number and twenty is greater than four times the number decreased by one solve the inequality

Mathematics

1 answer:

Angelina_Jolie [31]3 years ago

4 0

I think it's
$x \leqslant 5$
I could be wrong but I think I'm right

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What is the probability of picking a blue coin out of a bag that contains 5 blue and 10 red coins

Neko [114]

the probability is 5/15 or 1/3.

You add up all the coins (5+10=15) and since there’s 5 blue coins in the bag, you put 5 over 15. You simplify that to 1/3.

hope this helped !!

6 0

3 years ago

D= number of dollars

padilas [110]

Unit rate 4:

The table

d n

4 1

8 2

16 4

Unit rate 1/4:

Table

d n

1 4

4 16

16 64

and

The equation n=4d

Unit rate 16:

Equation:

d = 16n

Step-by-step explanation:

The unit in the unit rate is dollars per unit ounces which means that the unit rate calculated by

$Unit\ rate = \frac{dollars}{ounces}$

So,

The first option is the equation:

$d = 16n\\\frac{d}{n} = 16$

The unit rate is 16 dollars per ounce

The second option is the table:

d n

1 4

4 16

16 64

We can take any pair of values of d and n from the table to calculate the unit rate

So taking

d = 1

n=4

$Unit\ rate = \frac{d}{n}\\= \frac{1}{4}$

The unit rate for table is: 1/4 dollars per ounces

Third option is the equation:

n = 4d

$n = 4d$

dividing both sides by n

$\frac{n}{n} = \frac{4d}{n}\\1 = \frac{4d}{n}$

dividing both sides by 4

$\frac{1}{4} = \frac{4d}{4n}\\\frac{d}{n} = \frac{1}{4}$

the unit rate is 1/4 dollars per ounce

Fourth option is the table:

d n

4 1

8 2

16 4

We will take any pair of d and n to find the unit rate

So,

Taking

d = 4

n =1

$Unit\ rate = \frac{d}{n} \\= \frac{4}{1}\\=4$

The unit rate is 4 dollars per unit ounce.

Keywords: Unit rate, units

Learn more about unit rate at:

#LearnwithBrainly

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3 years ago

mayflies can live at the bottom of lakes for 2 to 3 years before they become winged adults.Mayflies are between 4/10 inches and

Airida [17]

To simplify any fraction, look for a common factor in the top number
and the bottom number. If you find one, divide the top and bottom
both by their common factor. Eventually, you reach the point where
their only common factor is ' 1 ' ... that's when it's in simplest form.

4 and 10 both have 2 as a factor.

When you divide top and bottom both by 2, you have 2/5 .
This is the simplest form of 4/10 .

None of this has anything to do with mayflies. You can use the same
process to simplify fractions in ANY situation where fractions arise.

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3 years ago

Simplifying algebraic expressions X + Y + 3X + 7Y

Lostsunrise [7]

Answer:

4(X+2Y)

Step-by-step explanation:

Rearrange the equation:

X+3X+Y+7Y

Combine like terms (so add coefficients of like variables):

4X+8Y

Factor if necessary:

4(X+2Y)

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Vikentia [17]

Me das mas información?

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2 years ago