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3 years ago

Eighty percent of a number

Mathematics

2 answers:

Softa [21]3 years ago

7 0

multiply the number by 0.8 and that will be your answer

Alex787 [66]3 years ago

4 0

0.80 is the answer!!!!!

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What is the solution set for |z+4|>15

Contact [7]

Answer:

$z + 4 = 15 \\ z + 4 - 4 = 15 \\ z = 15 - 4 \\ z = 11$

z>11

5 0

3 years ago

5 cakes cost £4 how much do 7 cakes cost

Nostrana [21]

You can solve this using proportion.

5 = 4

7 = ?

7(4)/5= 5.6

7 cakes cost £5.6

4 0

2 years ago

Read 2 more answers

The drama club is selling tickets for a play. The profit, y, is

Goshia [24]

Answer:

80 tickets

Step-by-step explanation:

Given the profit, y, modeled by the equation, y = x^2 – 40x – 3,200, where x is the number of tickets sold, we are to find the total number of tickets, x, that need to be sold for the drama club to break even. To do that we will simply substitute y = 0 into the given the equation and calculate the value of x;

y = x^2 – 40x – 3,200,

0 = x^2 – 40x – 3,200,

x^2 – 40x – 3,200 = 0

x^2 – 80x + 40x – 3,200 = 0

x(x-80)+40(x-80) = 0

(x+40)(x-80) = 0

x = -40 and x = 80

x cannot be negative

Hence the total number of tickets, x, that need to be sold for the drama club to break even is 80 tickets

8 0

2 years ago

In a survey, 60% of interviewees say they like beach sports, while 55% like mountain sports. If 20% like both, what fraction of

My name is Ann [436]

Answer:

0.05

Step-by-step explanation:

To solve this problem, we first need to calculate the percentage of people that like beach or mountain sports.

This percentage can be calculated with the formula:

P(M or B) = P(M) + P(B) - P(M and B)

where:

P(M or M) is the percentage of people that like beach or mountain sports,

P(B) is the percentage of people that like beach sports,

P(M) is the percentage of people that like mountain sports,

P(B) is the percentage of people that like beach and mountain sports.

Then:

P(M or B) = 0.55 + 0.60 - 0.20 = 0.95

95% of the people like mountain or beach sport. Now, to find the percentage of people that like neither, we just need to make 1 minus the percentage of people that like beach or mountain sports:

P(Neither) = 1 - P(M or B) = 1 - 0.95 = 0.05

0.05 or 5% of the people interviewed like neither of these sports.

7 0

2 years ago

Read 2 more answers

If a bullentin board is 6 ft wide and 4 ft tall. what are the deminsions inside

SOVA2 [1]

If you are looking for the area the answer would be 24 ft. tall because 6*4 is 24

6 0

3 years ago