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Flauer [41]
3 years ago
10

Three numbers have a sum of 68. The second number is 1 less than twice the first. The third number is three times the second. Wh

at are the three numbers?
Mathematics
1 answer:
Vesnalui [34]3 years ago
4 0

Answer:

First number: 71/7

Second number: 135/7

Third number: 270/7

Step-by-step explanation:

First number = x

Second number= 2x-1

Third number= 2(2x-1)

x+(2x-1)+2(2x-1)= 68

3x-1+4x-2=68

7x-3=68

7x=71

x=71/7

You can check by plugging in the x into the equation.

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4 years ago
If a pair of shoes cost $40 and they are on sale for 30% off how much would they be
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multiply 40 by 30% to find the discount then subtract

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3 years ago
Find the greater ratio - 6:7 and 7:8​
Shtirlitz [24]

Answer:

6:7

Step-by-step explanation:

4 0
3 years ago
300% of 7 is what percent of 42?<br> A. 30%<br> B. 50%<br> C. 60%<br> D. 12.5%
liubo4ka [24]

Answer:

B. 50%

Step-by-step explanation:

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6 0
2 years ago
Please help me asp I’ll mark as brainliest
Zigmanuir [339]

Answer:

1) Ordered pairs are (9,5), (11,8) , (13,11), (15,14)

2) Ordered pairs are (20,20) ,(16,17), (12,14), (8,11)

3) Ordered pairs are     (1,40),(3,22), (7,13), (15,7.5)

Step-by-step explanation:

1) Rule 1: Add 2 starting from 9

Rule 2: Add 3 starting from 5

Sequence 1 is generated using Rule 1 so, it starts with 9 and we add 2 to get the next number.

Sequence 2 is generated using Rule 2 so, it starts with 5 and we add 3 to get the next number.

Sequence 1       Sequence 2       Ordered Pair

9                           5                           (9,5)

11                          8                           (11,8)

13                          11                           (13,11)

15                          14                           (15,14)

2) Rule 1: Subtract 4 starting from 20

Rule 2: Subtract 3 starting from 20

Sequence 1 is generated using Rule 1 so, it starts with 20 and we subtract 4 to get the next number.

Sequence 2 is generated using Rule 2 so, it starts with 20 and we subtract 3 to get the next number.

Sequence 1       Sequence 2       Ordered Pair

20                         20                        (20,20)

16                          17                         (16,17)

12                          14                         (12,14)

8                            11                         (8,11)

3) Rule 1: Multiply by 2 then add 1 starting from 1

Rule 2: Divide by 2 then add 4 starting from 40

Sequence 1 is generated using Rule 1 so, it starts with 1 and then we multiply by 2 and then add 2 to get the next number.

Sequence 2 is generated using Rule 2 so, it starts with 40 and then we multiply by 2 and add 2 to get the next number.

Sequence 1       Sequence 2       Ordered Pair

1                           40                            (1,40)

3                           22                          (3,22)

7                           13                            (7,13)

15                          7.5                           (15,7.5)

7 0
3 years ago
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