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4 years ago

(3x-5)(2x+7) Please show all the work Thank You

Mathematics

1 answer:

dalvyx [7]4 years ago

8 0

(3x-5)(2x+7) =

= 3x·2x + 3x·7 - 5·2x - 5·7

= 6x² + 21x - 10x - 35

= 6x² + 11x - 35

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Tina and Zion earn $38 per week for delivering newspapers. Tina worked for x weeks and earned an additional total bonus of $15.

sergejj [24]

Answer:

it would be (38x+15)+38y

Step-by-step explanation:

x=number of weeks

38 times x=38x

53x=53 weeks

bonus of 15=38x+15

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3 years ago

Antonio has saved $28 to spend at the arcade. If he has 5 bills, how many of each kind of bill does he have?

ella [17]

Answer:

1 20$ bill 1 5$ bill and 3 1$ bills

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4 years ago

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Please help me with this.

xenn [34]

By solving a system of equations, we will see that you must use 6.67 pounds of chocolate-covered almonds.

<h3>How to solve the system of equations?</h3>

First, we need to define the two variables:

x = number of pounds of the $9.99 chocolate-covered almonds used.
y = number of pounds of the $5.99 chocolate-covered raisins used.

If we mix that, we will get:

x*$9.99 + y*$5.99 = (x + y)*C

That equation means that the cost of the individual elements of the mixture, must be equal to the total cost of the mixture. Where C is the cost of each pound of the mixture, and we know that:

C = $8.75

y = 3

Replacing that, we get:

x*$9.99 + 3*$5.99 = (x + 3)*$8.75

Now we can solve that for x:

x*$9.99 - x*$8.75 = 3*$8.75 - 3*$5.99

x*$1.24 = $8.28

x = $8.28/$1.24 = 6.67

Then you must use 6.67 pounds of the chocolate-covered almonds.

If you want to learn more about systems of equations:

brainly.com/question/13729904

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2 years ago

A theater company charges $10.50 per ticket for people of all age groups. If c represents the total number of children who bough

statuscvo [17]

The equation t = 10.5(c + a) represents the total money earned by the company from the sale of tickets

<u>Solution:</u>

Given that,

Ticket charged for people of all age groups = $ 10.50 per ticket

Let "c" represents the total number of children who bought tickets

Let "a" represents the total number of adults who bought tickets

Now, let the total money collect be represented by "t"

Number of people bought tickets = number of children bought tickets + number of adults bought tickets

<em><u>Now the total money earned by company is given as:</u></em>

Total money earned = cost per ticket x number of people bought tickets

Total money collected = cost per ticket x (number of children bought tickets + number of adults bought tickets)

Substituting the known values we get,

$\mathrm{t}=10.5 \times(\mathrm{c}+\mathrm{a})$

t = 10.5(c + a)

Hence, the required equation is t = 10.5(c + a)

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4 years ago

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Please HELP!!!!! What is the prime factorization of 81m to the 2nd power x to the 3rd power?

makvit [3.9K]

81 m² x³ is the answer

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3 years ago