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3 years ago

8

Three friends arrive at a party their arrival increases the number of people at the party by 20% in total how many people are no

w at the party

1 answer:

rodikova [14]3 years ago

5 0

Answer:

18 people

Step-by-step explanation:

Let the number of people at the party before the arrival be x

20% of x = 3

20/100 * x = 3

20x = 300

x = 300/20

x = 15

Adding the friends , we have 15 + 3 = 18

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Jaida has $200 to spend on flowers for a school celebration. She decides that the only flowers that she wants to buy are roses a

mafiozo [28]

Answer:

$1.45x+0.65y\leq 200$

Here, $x$ denotes the number of roses used for a school celebration and $y$ denotes the number of carnations used for a school celebration.

Step-by-step explanation:

Let $x$ denotes the number of roses used for a school celebration and $y$ denotes the number of carnations used for a school celebration.

Cost of 1 rose = $1.45

Cost of $x$ roses = $\$1.45x$

Cost of 1 carnation = $0.65

Cost of $y$ roses = $\$0.65y$

Total cost spend on flowers = $1.45x+0.65y$

Total amount with Jaida = $200

So,

the inequality to represent the cost constraint is $1.45x+0.65y\leq 200$

5 0

4 years ago

First and second place in the contest use a ratio to share a cash prize when first place pays $100 second please pay $60 how muc

Talja [164]

100/60 = x/36

Cross Multiply

3600 = 60x

x = 60

First place pays $60 when second place pays $36.

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4 0

4 years ago

A central angle of a circle is 90 degrees. If the diameter of the circle is 12 cm, what is the area of the segment created by co

Yanka [14]

<h3>The area of the segment created by connecting the two points on the circle created by the angle described is 28.26 square centimeter</h3>

<em><u>Solution:</u></em>

Given that,

A central angle of a circle is 90 degrees

diameter of the circle is 12 cm

radius = 12/2 = 6 cm

To find: Area of segment

<em><u>The area of sector when angle is in degrees is:</u></em>

$Area\ of\ sector = \frac{\theta}{360} \times \pi r^2$

Where,

r is radius

$\theta$ is angle in degrees

Therefore,

$Area\ of\ sector = \frac{90}{360} \times 3.14 \times 6^2\\\\Area\ of\ sector = 0.25 \times 3.14 \times 36\\\\Area\ of\ sector = 28.26$

Thus area of the segment created by connecting the two points on the circle created by the angle described is 28.26 square centimeter

5 0

4 years ago

Is 4:3 equivalent to 16: 12? How do you know?

KonstantinChe [14]

Answer:

yes

Step-by-step explanation:

Because 4/3=4*4/3*4=16/12

6 0

4 years ago

Read 2 more answers

Write the quadratic equation whose roots are 6 and 5, and whose leading coefficient is 3

denis-greek [22]

Answer:

y = 3x^2 - 33x + 90

Step-by-step explanation:

y= 3(x - 6)(x - 5)

if you expand this you get

y = 3(x^2 - 6x - 5x +30)

y = 3(x^2 - 11x + 30) Now use the 3

y = 3x^2 - 33x + 90

And that would be the answer.

3 0

3 years ago