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Lady_Fox [76]
3 years ago
6

Please PLEASE PLEASE PLEASE PLEASE PLEASE PLEASE PLEASEEEE answer as soon as possible. All answers are appreciated. Thank you in

advanced.

Mathematics
2 answers:
wolverine [178]3 years ago
7 0

Answer:

45

Step-by-step explanation:

Aneli [31]3 years ago
6 0

Answer:

45

Step-by-step explanation:

3z² - 6z

3(5)² - 6(5)

3(25) - 30

75 - 30

45

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The least common denominator of 1/2, 1/6, and 1/9 is:
solmaris [256]

Answer:

18

Step-by-step explanation:

Find the factors of each denominator

2 = 1*2

6 = 2*3

9 = 3*3

The least common multiple is

2*3*3 = 18

The least common denominator is 18

4 0
3 years ago
Read 2 more answers
Find the sum of the first 18 terms of the arithmetic sequence whose nth term is an = 3n - 1.
vodka [1.7K]

Answer:

495

Step-by-step explanation:

In order to find the sum of the first 18 terms you have to find the 18th term and the first term using the equation given.

a1=3(1)-1        a1=2

a18=3(18)-1   a18= 53

Then plug in 53 for an, 18 for n, and 2 in for a1 in the sum equation: Sn=n/2(a1+an)  

Sn=18/2(2+53)  Solve for sn= 495

7 0
3 years ago
Suppose 15 Argus student ride the city bus to school. Out of a total of 220 students, what percent ride the city bus (round to n
Oksana_A [137]

Answer:

7%

Step-by-step explanation:

(15/220) x 100 = 6. 8182 = 7%

to convert to percentage multiply by 100

To convert to the nearest whole number, look at the first number after the decimal. If it is greater or equal to 5, add 1 to the number after the decimal. 8 is greater than 5, so add one to 6

8 0
3 years ago
Each student is on 1 team. Race Details The field is 40 feet wide. • Each runner gets 1 lane. •Mrs. Achilles has 7 trophies. Use
ser-zykov [4K]

Answer:

LOL

Step-by-step explanation:

Okay so your going to multiple tye 2 number okay then your going to do all numbers

Use a phone so u can multiple

5 0
3 years ago
Meredith invested $5,500 into an account that earned 5% interest per year. When she cashed out the investment to use it as a dow
shtirl [24]

Answer:

Step-by-step explanation:

Using I = PRT/100

where P = The principal amount invested = $5500

R = Rate of Interest =5%

T = Time (in years)

I = Interest = $7,739.05 - $5500 = $2239.05

Substituting the above values in the formula

I = PRT/100 becomes

2239.05 = 7,739.05 * 5 * t / 100 -------- Multiply 100 to both sides

2239.05 * 100 = 100 * 7739.05 * 5 * t / 100

223905 = 7739.05 * 5 * t

223905 = 38695.25t

Divide both sides by 38695.25t

223905/38695.25 = t

5.786369 = t

T = 5.79 (approximated)

8 0
3 years ago
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