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NeX [460]
3 years ago
12

Two times the sum of a number and 8 is twenty. What is the number?

Mathematics
1 answer:
natka813 [3]3 years ago
3 0

Answer:

n=2

2(n+8)=20

2n+16=20

     -16  -16

2n=4

/2   /2

n= 2

Hope this helps :)

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6.<br>Simplify<br>4√8 + 3√18 √32​
Lelechka [254]

Answer:

83.31370849

Step-by-step explanation:

I got you get the 100

5 0
3 years ago
I BEG OF YOU HELPPPP Twice last​ month, Judy Carter rented a car in​ Fresno, California, and traveled around the Southwest on bu
sineoko [7]

Answer:

the daily fee =33 dollars

and the mileage charge.=0.35

Step-by-step explanation:

let d: be daily fee and m for mileage

cost of rental =(d*number of days)+ (m*number of mileage)

her first trip: 4d+440m=286

her second trip: 3d+190m=165.5

solve by addition and elimination

4d+440m=286 ⇒ multiply by 3 ⇒12d +1320m=(3)286

3d+190m=165.5⇒ multiply by 4⇒12d+190(4)m=4(165.5)

12d+1320m=858

12d+760m=662

subtract two equation to eliminate d

12d+1320m-12d-760m=858-662

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m=7/20=0.35 for on mileage

d: 4d+440m=286

4d=286-440(0.35)

d=(286-154)/4 33 dollars

8 0
4 years ago
AB and CD are straight lines. Find AOD.​
Anon25 [30]

Answer:

106°

Step-by-step explanation:

AOD = COB (because of vertical angles)

COB = COF + FOB

COF = 90

FOB = 16

COB = 90 + 16 = 106

AOD = 106

Hope this helps :)

Have a nice day!

3 0
2 years ago
Given (x-2)2/25 +(y+3)2/4<br> &lt;1, which point lies in the solution set
PSYCHO15rus [73]

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B. (3, -2.5)

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Got it Right on EDGE

4 0
3 years ago
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X = 14
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