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ivolga24 [154]
2 years ago
5

How to solve this problem: 1 1/2(n-4 1/2)=12

Mathematics
1 answer:
Vikentia [17]2 years ago
4 0

Answer:

n = 25/2, or n = 12  1/2

Step-by-step explanation:

It's essential that you use parentheses here to show how your numerals are grouped.  I have made some assumptions here, and believe you meant:

(1  1/2)(n - 4  1/2) = 12.

First, convert 1  1/2 and 4  1/2 into improper fractions:

(3/2)(n - 9/2) = 12

Multiplying both sides by (2/3) eliminates the fractional coefficient (3/2):

n - 9/2 = (2/3)(12), or    n - 9/2 = 8.

Again, eliminate the fraction by multiplying all terms by 2:

2n - 9 = 16

Then 2n = 25, and n = 25/2, or n = 12  1/2

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Rewrite using the power of the product property.<br><br>81x^4y^8​
amm1812

81 is 3^4, so

3^4 \cdot x^4 \cdot \left(y^2\right)^4 = \left(3 \cdot x \cdot y^2\right)^4 = \boxed{\left(3xy^2\right)^4}

4 0
2 years ago
16 teams In a football league, each team plays each other twice , how many games are there in the football league in total ?
Brilliant_brown [7]

Answer:

120 games.

Step-by-step explanation:

We have been given that there are 16 teams in a football league. Each team plays each other twice. We are asked to find total number of games are there in the football league.

We will use formula \frac{n(n-1)}{2} to solve our given problem.

Each team will play matches with one team less as it will not play match with itself.

We will divide all number of matches by 2 to avoid repetition.

\frac{16(16-1)}{2}=\frac{16(15)}{2}=8*15=120

Therefore, there are 120 games in the football league.

4 0
3 years ago
Robert drives 45 miles in 3 hours from New York City to New Jersey. How far will he drive in 5 hours?
fenix001 [56]
Ok so the awnser is 75 because 45 ÷ 3 is 15 and so 2 more hours so I added 30 to the 45 and I got 75 I think that's right please correct me
3 0
2 years ago
I need help with this.
Sedaia [141]

The two lines are parallel, no matter how long they travel they will not cross.

8 0
2 years ago
Whαt ís thє vαluє σf х ?<br><br><img src="https://tex.z-dn.net/?f=x%20%7B%7D%5E%7B2%7D%20%20%20-%20%20%5C%3A%2025%20%3D%20144" i
Zigmanuir [339]

Answer:

hey mate!!

Step-by-step explanation:

x

2

−25=144

X^2=144+25

x^2=169

x=√169

x=13

Sorry mate check out the answer !

7 0
2 years ago
Read 2 more answers
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