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slega [8]
2 years ago
7

If the sum of three consecutive multiples of 7 is 945. Find the smallest among them​

Mathematics
1 answer:
Firlakuza [10]2 years ago
8 0

consider first number is = x

formula,

(n / 2)(first number + last number) = sum,

7/2(x+x+6)= 945

2x+6= 945×2/7

2x+6 = 270

2x= 270-6

x=264/2= 132

Answer the smallest number is 132.

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Solve the triangle. Round side lengths to the nearest tenth and angle measures to the nearest degree.
kirill115 [55]

Answer:

a=14.28

b=22.919

c=68°

6 0
2 years ago
What is the sum of the finite arithmetic series (-5)+0+5+10+ ......+65
Alex17521 [72]

If you want to solve this problem using formulas, there are two important formulas:

t1  =  first term  =  -5          

tn  =  nth term  =  last term  =  -5

n  =  numbr of terms

Sn  =  sum of the n terms

tn  =  t1 + (n - 1)d     --->     65  =  -5 + (n - 1)(5)

                                          65  =  -5 + 5n - 5

                                          65  =  -10 + 5n

                                          75  =  5n

                                            n  =  15

Sn  =  n(t1 + tn)/2     --->     Sn  =  15(-5 + 65)/2

                                          Sn  =  450


So ur answer rounds up to 450


Letter c

:)

hope i helped 


~Luis

5 0
3 years ago
Peaches come in large and small cylindrical cans. The larger can has a radiusand height that are both four times longer than the
Alik [6]

Answer:

D. 2058.24 in³

Step-by-step explanation:

Let r,h be the radius and height of smaller can and R,H be the radius and height of larger can

Then, R=4r  and H=4h

Volume of smaller can=32.16 in³

        ⇒                  πr²h=32.16 in³

Volume of larger can= πR²H

                                  = π(4r²)×4h

                                 = 64πr²h

                                 = 64×32.16 in³

                                =  2058.24 in³

Hence, correct option is:

D. 2058.24 in³

7 0
2 years ago
Read 2 more answers
I'm begging yall to tell me the correct answer plz ​
Hitman42 [59]

Answer:

30.00

Step-by-step explanation:

6 0
2 years ago
PLEASE HELP WILL GIVE POINTS ABD BRAINLYIST ASAP
fiasKO [112]

Answer:

6

Step-by-step explanation:

2.5x6=15 and thats the closest it'll get. To be exact, it's 6.2, but i dont know if you need that.

8 0
2 years ago
Read 2 more answers
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