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2 years ago

120 tickets were sold in one hour and 50% were childrens tickets how many childrens tickets were sold?

Mathematics

2 answers:

Elanso [62]2 years ago

7 0

Answer:

Step-by-step explanation:

because half of children is 50. 120÷50=60

Natasha2012 [34]2 years ago

6 0

Just divide 120 into 2 and that’s your answer

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Evelyn can run 3 miles in 40 minutes

hram777 [196]

Answer:

m= 4.5 miles

Step-by-step explanation:

Let the number of miles Evelyn can run be m and can be modeled by the equation below

m= kx

Where x Is the Minutes

When m= 3

x= 40

3= k40

k= 3/40

If x= 60

m=3/40(60)

m = (60*3)/40

m= 180/40

m= 4.5 miles

5 0

2 years ago

The temperature of an enclosure for a pet corn snake should be an average of 81° F. For the well-being of the corn snake, the te

mario62 [17]

Answer: |81-x|<5

Step-by-step explanation:

Given: Temperature of an enclosure for a pet corn snake should be an average of 81° F.

Temperature in the enclosure should not vary by more than 5° F.

Let x= Temperature in the enclosure

Then, difference between average and current temperature should less the 5.

i.e. |81-x|<5 (required absolute value equation )

hence, the absolute value equation could be used to determine the minimum and maximum temperatures recommended for the corn snake enclosure:

|81-x|<5

4 0

3 years ago

At Norman's Newsstand, 5 magazines cost $10.00. How many magazines could you buy with $24.00?

kow [346]

Answer: you could buy 12 magazines

Step-by-step explanation:

each magazine is $2

6 0

2 years ago

Read 2 more answers

This table gives a few (x, y) pairs of a line in the coordinate plane. What is the x-intercept of the line?

PIT_PIT [208]

Answer:

Step-by-step explanation:

The x-intercept of a line is the value of x that makes y=0.

A line can be expressed in its slope-intercept form:

y=mx+b

Once determined the equation of the line, the x-intercept can be calculated by setting y=0 and solving for x.

Let's find the slope of the line.

Suppose we know the line passes through two points A(x1,y1) and B(x2,y2). The slope can be calculated with the equation:

$\displaystyle m=\frac{y_2-y_1}{x_2-x_1}$

Let's pick the first two points of the table (-94,24) (-74,18). The slope is:

$\displaystyle m=\frac{18-24}{-74+94}=\frac{-6}{20}=-\frac{3}{10}$

The equation of the line is:

$\displaystyle y=-\frac{3}{10}x+b$

Now use one of the points to find b, for example (-94,24):

$\displaystyle 24=-\frac{3}{10}\cdot (-94)+b$

Operating:

$\displaystyle 24=\frac{141}{5}+b$

Solving:

$b=24-\frac{141}{5}=-\frac{21}{5}$

The complete equation of the line is:

$\displaystyle y=-\frac{3}{10}x-\frac{21}{5}$

To find the x-incercept, set y=0 and solve:

$\displaystyle 0=-\frac{3}{10}x-\frac{21}{5}$

$\displaystyle x=\frac{\frac{21}{5}}{-\frac{3}{10}}=-\frac{21}{5}\cdot \frac{10}{3}$

x=-14

5 0

2 years ago

How many ways to use when finding the quadratic equations

vekshin1

Answer:

three

Step-by-step explanation:

1) solving for roots

2) Quadratic formula

3) By completing square

6 0

2 years ago