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2 years ago

Leon tried to solve an equation step by step.

Mathematics

2 answers:

In-s [12.5K]2 years ago

8 0

Step-by-step explanation:

in step 2 leon made mistake

AlekseyPX2 years ago

4 0

OPTION B step 2

$\frac{1}{2} w = 30$

$w = 30 \times 2$

$w = 60$

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A craft store sells boxes of two different varieties of colored pencils. The table shows the number of boxes sold last month. Wh

vlada-n [284]

Answer:

So the answer is 108.75

Step-by-step explanation:

15 * $4.25 = 63.75

12* $3.75 = 45

63.75 + 45 = 108.75.

Answer:108.75

8 0

3 years ago

A group of four friends are playing golf. The total cost of the round of golf is $108. Each person in the group has the same cou

azamat

Answer:

Each coupon was worth $8.

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2 years ago

If you start with a number, add 5 , then multiply by 7, the result is133. what was the original number?

Natalija [7]

(x+5)*7=133
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3 years ago

If n is a positive integer, how many 5-tuples of integers from 1 through n can be formed in which the elements of the 5-tuple ar

erma4kov [3.2K]

Answer:

$\frac{(n+4)*(n+3)*(n+2)*(n+1)*n}{120}$

Step-by-step explanation:

Given

5 tuples implies that:

$n = 5$

$(h,i,j,k,m)$ implies that:

$r = 5$

Required

How many 5-tuples of integers $(h, i, j, k,m)$ are there such that $n\ge h\ge i\ge j\ge k\ge m\ge 1$

From the question, the order of the integers h, i, j, k and m does not matter. This implies that, we make use of combination to solve this problem.

Also considering that repetition is allowed: This implies that, a number can be repeated in more than 1 location

So, there are n + 4 items to make selection from

The selection becomes:

$^{n}C_r => ^{n + 4}C_5$

$^{n + 4}C_5 = \frac{(n+4)!}{(n+4-5)!5!}$

$^{n + 4}C_5 = \frac{(n+4)!}{(n-1)!5!}$

Expand the numerator

$^{n + 4}C_5 = \frac{(n+4)!(n+3)*(n+2)*(n+1)*n*(n-1)!}{(n-1)!5!}$

$^{n + 4}C_5 = \frac{(n+4)*(n+3)*(n+2)*(n+1)*n}{5!}$

$^{n + 4}C_5 = \frac{(n+4)*(n+3)*(n+2)*(n+1)*n}{5*4*3*2*1}$

$^{n + 4}C_5 = \frac{(n+4)*(n+3)*(n+2)*(n+1)*n}{120}$

<u><em>Solved</em></u>

6 0

2 years ago

G.O is going on a hike in the mountains on a hot summer day ha has 4/5 gallon of water that he split into 4 bottles what fractio

kirill [66]

Answer:

$\frac{1}{5}$ fraction of gallon is in each bottle.

Step-by-step explanation:

As per the given condition: G.O is going on a hike in the mountains on a hot summer day he has 4/5 gallon of water that he split into 4 bottles.

⇒ in 4 bottle he has $\frac{4}{5}$ gallon of water.

Unit rates defined as when are expressed as a quantity of 1, such as 3 feet per second or 4 miles per hour, then they are called unit rates.

By unit rate definition,

In 1 bottle he has = $\frac{4}{5} \times \frac{1}{4} = \frac{1}{5}$ gallon of water.

therefore, the gallon in each bottle in fraction is, $\frac{1}{5}$

7 0

2 years ago