2 years ago

Beth sold half of her comic books and then bought nine more. She now has 28.

Mathematics

1 answer:

sleet_krkn [62]2 years ago

4 0

Answer:

Step-by-step explanation:

28-9=19

19x2=38

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Based only on the information given in the diagram, it is guaranteed that ДАВС дXYZ. A. True B. False

EastWind [94]

Answer:

True

Step-by-step explanation:

They both have a 90 degree angle
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2 years ago

The population of a city is expected to increase by 7.5% next year. If p represents the current population, which expression rep

Elodia [21]

$p+0.075p=1.075p$

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2 years ago

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a fundraiser raised $2400 , which was 3/5 of the goal . write an equation and solve it to find the goal

GuDViN [60]

First of all, 2400=0.6x is the equation

Now, we use cross multiplication

2400/1 = 3/5x

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The total fundraiser goal is $4,000.

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2 years ago

Evaluate f(−1)=−3x^3 + 2x^2

Sholpan [36]

Answer:

Step-by-step explanation:

f(-1)= -3(-1)³+2(-1)²

= -3(-1)+2(1)

= 3+2

5 0

2 years ago

A small business earns a profit of $6500 in January and $17,500 in May. What is the rate of change in profit for this time perio

MAXImum [283]

Rate of change of profit for this period is $2750 per month

Solution:

Given that,

Profit of $6500 in January and $17,500 in May

To find: Rate of change

Since,

January is the first month of the year (1) while May is the fifth month (5)

Therefore, we get two points

(1, 6500) and (5, 17500)

Using these points we can find the rate of change in profit for this time period

The rate of change using the following formula:

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

Here from the points,

$(x_1, y_1) = (1, 6500)\\\\(x_2, y_2) = (5, 17500)$

Therefore, rate of change is given as:

$m = \frac{17500-6500}{5-1}\\\\m = \frac{11000}{4}\\\\m = 2750$

Thus rate of change of profit for this period = $2750 per month

8 0

2 years ago