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3 years ago

How would you solve this problem

Mathematics

1 answer:

ozzi3 years ago

3 0

Answer: I am pretty sure it is -1 because it is vertically across

Step-by-step explanation: I am so sorry if it is not right

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Tickets for a play at the community theater cost $8 for children and $20 for adults. A total of 300 tickets have been sold for $

salantis [7]

Answer:

125 adults

175 children

Step-by-step explanation:

3900=8c+20a

300=c+a

c=300-a

substitute

3900=8(300-a)+20a

reduce

3900=2400-8a+20a

1500=12a

a=125 adults

substitute for a

c=300-a

c=300-125

c=175 children

8 0

3 years ago

Find the value of x in the given

Ierofanga [76]

Check the picture below.

Make sure your calculator is in Degree mode.

7 0

2 years ago

Joe is building a post for his mailbox. To find the correct dimensions, he needs to expand this expression: (x-3) (x-9) (x-4) Se

kolbaska11 [484]

Answer:

$(x-3)(x-9)(x-4)=x^3-16x^2+75x-108$

Step-by-step explanation:

Given:

The expression to expand is given as:

$(x-3)(x-9)(x-4)$

Let us expand the first two binomials of the given expression using FOIL method.

The FOIL method states that:

$(a + b)(c + d) = ac + ad + bc + bd$

$(x-3)(x-9)=(x\times x)+(x\times -9)+(-3\times x)+(-3\times -9)\\\\(x-3)(x-9)=x^2-9x-3x+27=x^2-12x+27$

Now, let us multiply the result with the remaining binomial. Multiplying each term of the trinomial with each term of the binomial, we get:

$(x^2-12x+27)(x-4)\\\\= (x^2\times x)+ (x^2\times -4)+(-12x\times x)+(-12x\times -4)+(27\times x)+(27\times -4)\\\\=x^3-4x^2-12x^2+48x+27x-108\\\\=x^3-16x^2+75x-108...........(\because-12x^2-4x^2=-16x^2,48x+27x=75x)$

Therefore, the equivalent expression after expanding is given as:

$(x-3)(x-9)(x-4)=x^3-16x^2+75x-108$

3 0

3 years ago

A number increased by 10 is 114 answer in an equation

enyata [817]

We have to make an equation: a number increased by 10 is 114.
An equation is:
x + 10 = 114
x = 114 - 10
x = 104.

7 0

3 years ago

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There are 28 students in the class and 1316 blocks. If the blocks are divided equally among the students, how many does each stu

pav-90 [236]

Answer:

girl

Step-by-step explanation:

5 0

3 years ago

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How would you solve this problem​

How would you solve this problem