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MArishka [77]
3 years ago
9

Find out n of these equations: 4n + 10 = 18 4n - 13 = 23 10n + 8 = 78

Mathematics
2 answers:
vladimir2022 [97]3 years ago
6 0
A)
N = 2
b)
N = 9
C)
N = 7
Kryger [21]3 years ago
4 0
4n+10=18                         4n-13=23                           10n+8=78
4n+10-10=18-10              4n-13+13=23+13               10n+8-8=78-8
4n=8                                 4n=36                                 10n=70
n=2                                   n=9                                      n=7
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The price of grapes at the grocery store is $1.44 per pound. There are approximately 0.45 kilograms in a pound. To the nearest c
Arlecino [84]

1 lb / 0.45 = 2.22

 so approximately 2.22 kilograms per pound

 divide price per pound by kilometers per pound

1.44 / 2.22 = 0.648

 round to 0.65, so it costs $0.65 per kilogram

3 0
3 years ago
The sum of three consecutive multiples of 7 is 777 find these multiples
Rudik [331]

let the consecutive multiples be 7(n-1) , 7n and 7(n+1)

so 7(n-1)+7n+7(n+1)=777

or 3n=111,

n=37

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4 0
3 years ago
Read 2 more answers
9. Triangle Construction pays Square Insurance $5,980
xxTIMURxx [149]

The triangle pay $32 more for that day than it paid per day during the first period of time.

Step-by-step explanation:

The given is,

              Triangle Construction pays Square Insurance $5,980

               To insure a construction site for 92 days

               To extend the  insurance beyond the 92 days costs $97 per day

               Triangle extends the insurance by 1 day

Step:1

              Insurance per day from the 92 days period,

                                                                           = \frac{Total insuratio for 92 days}{Period}

               Where, Total insurance for 92 days = $ 5,980

                                                               Period = 92 days

               From the values, equation becomes,

                                                                            =\frac{5980}{92}

                                                                           = $ 65 per day

Step:2

              Insurance per day after the 92 days,

                                                                           = $ 97

               Amount Pay for that day than it paid per day during the first period of time,

                                                                            =(97-65)

                                                                           = $32

Result:

             The triangle pay $32 more for that day than it paid per day during the first period of time, if  the Triangle Construction pays Square Insurance $5,980 to insure a construction site for 92 days and to extend the  insurance beyond the 92 days costs $97 per day.

                                                                         

8 0
3 years ago
Please tel me what goes where
maria [59]

Step-by-step explanation:

A- Equilateral (all of the angles are the same)

B- isosceles (just two angles are the same)

C- scalene (non of the angles are the same)

7 0
2 years ago
Read 2 more answers
Please could someone help!
melisa1 [442]

Answer:

<h2>32.16 \: grams</h2>

solution,

mass = volume \times density \\  \:  \:  \:  \:  \:  \:  \:  \:  =  2.4 \:   \frac{g}{ {cm}^{3} }   \times 13.4 \:  {cm}^{3}  \\  \:  \:  \:  \:  \:  \:  \:  \:  = 2.4 \times 13.4 \: \: grams  \\  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  = 32.16 \: \: grams

Hope this helps...

Good luck on your assignment..

8 0
2 years ago
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