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BARSIC [14]
3 years ago
12

Henry bought 3 sets of pencils. After he bought the pencils, his account balance showed a change of -$30.63. What would have bee

n the change to Henry's account balance had he only bought 1 set of pencils?
Select one:
a. -$10.21
b. $10.21
c. $10.20
d. -$10.20
Mathematics
1 answer:
Pavlova-9 [17]3 years ago
6 0
A. -$10.21 because -10.21 multiplied by three is -30.63
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Pls help me for brainliest answer
Ket [755]

Answer with Step-by-step explanation:

a)3n + 4 \\  \\n = 1 \\ 3 \times 1 + 4 \\ 3 + 4 \\  =7 \\  \\ n = 2 \\ 3 \times 2 + 4 \\ 6 + 4 \\  = 10 \\  \\ n = 3 \\ 3 \times 3 + 4 \\ 9 + 4 \\  = 13 \\  \\ n = 4 \\ 3 \times 4 + 4 \\ 12 + 4 \\  = 16 \\  \\ n = 10 \\ 3 \times 10 + 4 \\ 30 + 4 \\  = 34 \\

So in this sequence,

1st term = 7

2nd term = 10

3rd term = 13

4th term = 16

10th term = 34

b)4n - 5 \\  \\ n = 1 \\ 4 \times 1 - 5 \\ 4 - 5 \\  =  - 1 \\  \\ n = 2 \\ 4 \times 2 - 5 \\ 8 - 5 \\ =  3 \\  \\ n = 3 \\ 4 \times 3 - 5 \\ 12 - 5 \\  = 7 \\  \\ n = 4 \\ 4 \times 4 - 5 \\ 16- 5 \\  = 11 \\  \\ n = 10 \\ 4 \times 10 - 5 \\ 40 - 5 \\  = 35

In this sequence,

1st term = -1

2nd term = 3

3rd term = 7

4th term = 11

10th term =35

5 0
3 years ago
the sum of two numbers is 104. the larger is one less than twice the smaller number. find the numbers
exis [7]

Answer:

The larger number is 69 and the smaller number is 35.

Step-by-step explanation:

Find the equations. Here x will be the larger number and y will be the smaller number.

x + y = 104

x = 2y -1

Substitute:

(2y -1) + y = 104

3y = 105

y = 35

x = 2(35) - 1

x = 70 - 1

x = 69

The larger number is 69 and the smaller number is 35.

8 0
3 years ago
A recipe that serves 6 uses 1 1/4 cups of flour. How many cups are needed to serve 8?
pickupchik [31]

Answer:1 2/3

Step-by-step explanation:

6 uses 1 1/4. To improper fraction 6 uses 5/4. Thus 1 will use 5/4 ×1/6= 5/24. Then 8 will use 8×5/24=5/3=1 2/3

7 0
2 years ago
100 megatons+234 help please
arlik [135]

Answer:

we know,

1 megaton=1000kg

100 megaton=100000

now,

total weight=100000+234

=100234.

6 0
3 years ago
3/4 times 2 equals what
Tamiku [17]
(3/4)*2=(3*2)/4=6/4=3/2
4 0
3 years ago
Read 2 more answers
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