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MakcuM [25]
3 years ago
9

Three times the sum of a number and four and five

Mathematics
1 answer:
BabaBlast [244]3 years ago
6 0

Answer:

3x+27

Step-by-step explanation:

3(x+4+5)=

3x+12+15=

3x+27

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Three children each had the same amount of money withdrew from their savings accounts. One of the children withdrew a quarter of
aivan3 [116]

Answer:

Each Children had \$ 100 in their accounts.

Step-by-step explanation:

Given:

Three children each had the same amount of money withdrew from their savings accounts.

One of the children withdrew a quarter of his money and spent it all on a $25 T-shirt

Solution:

Let the total money in the account be x

One of the children withdrew a quarter of his money= \frac{1}{4} \times x= \$25

x=$25\times4= $100

∴ Each Children had \$ 100 in their accounts.

8 0
3 years ago
Find the first, fourth, and eighth terms of the sequence.<br><br> A(n) = −2 ∙ 2x − 1
Nutka1998 [239]

A(n)=-2\cdot2^{n-1}\\\\\text{Find the first, fourth, and eighth terms}\\\text{It means}\ A(1),\ A(4)\ \text{and}\ A(8).\\\\\text{Substitute}\ n=1,\ n=4\ \text{and}\ n=8\ \text{in}\ A(n):\\\\A(1)=-2\cdot2^{1-1}=-2\cdot2^0=-2\cdot1=-2\\\\A(4)=-2\cdot2^{4-1}=-2\cdot2^3=-2\cdot8=-16\\\\A(8)=-2\cdot2^{8-1}=-2\cdot2^7=-2\cdot128=-256\\\\\boxed{Answer:\ -2,\ -16,\ -256}

5 0
3 years ago
Solve: 3x - 1 = 8(x + 1) + 1
amm1812

Answer:

x=-2

Step-by-step explanation:

3x-1=8x+8+1

3x-1 = 8x+9

3x-1+1=8x+9+1

3x= 8x+10

3x-8x=8x+10-8x

-5x=10

-5x ÷-5

10 ÷-5

x=-2

6 0
2 years ago
Jake tossed a paper cup 50 times and recorded how it landed. the table shows the results:
Darya [45]

The experimental probability of each event is as follows:

  • Landing open side up = 1/50 = 0.02 = 2%.
  • Landing closed side up = 5/50 = 1/10 = 0.1 = 10%.
  • Landing on its side = 44/50 = 0.88 = 88%.

The experimental probability of an event is the ratio of the number of outcomes that favored the event to the total number of outcomes in the experiment.

In the question, we are given that Jake tossed a paper cup 50 times and recorded the position how it landed, which is shown in the table:

Open-sided up: 1

Closed side up 5

On the side: 44.

We are asked to determine the experimental probability of each outcome.

The number of outcomes, when the landing is open-sided up is 1.

The number of outcomes, when the landing is closed-sided up is 5.

The number of outcomes, when the landing is on the side up is 44.

The total number of times the experiment took place is 50.

Thus, the experimental probability of each event is as follows:

  • Landing open side up = 1/50 = 0.02 = 2%.
  • Landing closed side up = 5/50 = 1/10 = 0.1 = 10%.
  • Landing on its side = 44/50 = 0.88 = 88%.

Learn more about the experimental probability at

brainly.com/question/24298250

#SPJ4

5 0
2 years ago
Tommy bought 30 gallons of gas for 60.50. How much would 12 gallons of gas cost?
bogdanovich [222]

Answer:

24.2

Step-by-step explanation:

divide 60.50 by 30 then multiply that by 12

3 0
3 years ago
Read 2 more answers
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