1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Irina-Kira [14]
3 years ago
12

Pleaseee help ill mark brainliest

Mathematics
1 answer:
7nadin3 [17]3 years ago
6 0

Answer:

  1. Number of bracelet Jessica can make in 30 minutes=2
  2. Number of bracelet Jessica can make in 60 minutes=4
  3. Number of bracelet Jessica can make in 90 minutes=6
  4. Number of bracelet Jessica can make in 120 minutes=8
  5. Number of bracelet Jessica can make in 180 minutes=12

Jessica can make <u>12 bracelet</u> in 180 minutes (3 hours).

Step-by-step explanation:

  • <u>Unitary method</u>

Number of bracelet Jessica can make in 30 minutes=2

Number of bracelet Jessica can make in 180 minutes=(180×2)/30=12

or,

  • <u>Arithmetic method</u>

Number of bracelet made by Jessica is directly proportional to the time taken by her.

Number of bracelet made by Jessica=k×time taken by her, where k is a constant

  • 2k=30
  • 4k=60
  • 6k=90
  • 8k=120

In all cases value of k is 15

Therefore,

Let the number of bracelet be x and putting the value of k, we get

xk=180 minutes (3 hours)

15x=180

x=180/15

x=12

You might be interested in
Tyler makes a sign that is 79 yard long and 23 yard wide. What is the area of his sign in square yards?
Hitman42 [59]

Answer:

A=1817\ \text{yards}^2

Step-by-step explanation:

Given that,

The length of sign, l = 79 yard

Width, b = 23 yards

We need to find the area of his sign. It is in the form of a rectangle. The area of a rectangular shape is given by :

A=l\times b\\\\A=79\times 23\\\\A=1817\ \text{yards}^2

So, the area of his sign is 1817\ \text{yards}^2.

3 0
3 years ago
Using the slot method and multiple cases, calculate the probability that you would roll 3 sixes with four standard dice.
Elden [556K]

Answer:

Pr = \frac{1}{216}

Step-by-step explanation:

 The sample space of a single dice is:

S = \{1,2,3,4,5,6\}

n(S) = 6

Required:

The probability of rolling 3 sixes

In a sample space of a roll of die, we have:

n(6) = 1

In a roll of dice, the probability of rolling a 6 is:

P(6) = \frac{n(6)}{n(S)}

P(6) = \frac{1}{6}

In 3 rolls, the probability is:

Pr = P(6)^3

Pr = [\frac{1}{6}]^3

Pr = \frac{1}{216}

4 0
3 years ago
I dont get this please help
Viktor [21]

Step-by-step explanation:

the side lengths of the base (the ground triangle) are equal. that means every ground side length is 8 in.

and that also makes the 3 triangles of the side areas of the pyramid equal.

so, for the surface area of the pyramid we need to calculate the area of one side area triangle, multiply it by 3 (as we have 3 side areas) and add the area of the ground triangle.

the area of a triangle is

baseline × height / 2

so, for a side area triangle we get

8 × 14 / 2 = 8×7 = 56 in²

all 3 side areas together are then

3×56 = 168 in²

the ground area triangle is then

8 × 6.9 / 2 = 4 × 6.9 = 27.6 in²

so, the total surface area of the pyramid is

168 + 27.6 = 195.6 in²

4 0
2 years ago
I have 300 beads.My sister has 60 more beads than I do.How many beads do we have altogether
Vesnalui [34]

660 beads

I have 300

My sister has 360

300+ 360= 660

8 0
3 years ago
Please helppp!!!!!!! And please show your work so i can know what to do next time i have this same problem !
solmaris [256]

Answer: The answer is $152.25

Step-by-step explanation:

First you multiply 0.07 by 163.71 to get 11.4597.

The you subtract 163.71 from 11.4597.

Then that's your answer. I hope this helped!

4 0
3 years ago
Other questions:
  • What is the volume of the figure?
    14·1 answer
  • If the coefficient of realism alpha equals 1, then the criterion of realism will yield the same result as the maximax criterion.
    5·1 answer
  • Jenna and her 3 friends each picked 3 apples off the apple tree in her yard. If an apple weighs 5 ounces, what is the total weig
    12·2 answers
  • A wheel, which is part of a game at a shopping center is arranged to give 2 tickets 50% of the time, 5 tickets 25% of the time,
    7·1 answer
  • Can someone help me with this question?
    15·1 answer
  • Find the measure of each missing angle ​
    9·1 answer
  • Please help-help-help
    12·1 answer
  • Please help me solved this since this is a test
    6·1 answer
  • NEED HELP ASAP!!!
    10·1 answer
  • Over 4 days, Krista deposited $45 into her bank account, transferred $30 1 point
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!