MATHEMATICS HIGH SCHOOL

Find the value for X and Y

Answers

Answer 1

Answer:

Answer:

x = 13

Step-by-step explanation: 2 2.5

Write and solve an equation of ratios: ------- = ---------

8 x - 3

Cross-multiplying, we get 2x - 6 = 20. Adding 6 to both sides: 2x = 26.

Then x = 13 units.x

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An unknown number y is 15 more than an unknown number x. The number y is also x less than 8. The equations to find x and y are shown below. y = x + 15
y = −x + 8

Which of the following statements is a correct step to find x and y?
Answers:
Multiply the equations to eliminate y.

Add the equations to eliminate x.

Write the points where the graphs of the equations intersect the x-axis.

Write the points where the graphs of the equations intersect the y-axis.

Answers

Add the equations to eliminate x.

y = x + 15
y = −x + 8

2y = 23

y = 11.5

All right, if I remember correctly... You have to add the equations to eliminate x.

Now, how you do that... let me search my memory for that xDDDD

What type of number is - v 81?

Answers

Answer:

rational

Step-by-step explanation:

How to arrange these words: "thank you! cdaotoasagip"? Options: A) cadatosagip thank you! B) cdaotoasagip thank you! C) thank you! cdaotoasagip D) yuoy knaht! picasagodato

Answers

The correct arrangement of the words is:

C) thank you! cdaotoasagip

Rachna has nickels, dimes, and quarters in her piggy bank. She has $4.65 altogether. She has three more quarters than dimes and twice as many nickels as quarters. How many quarters does Rachna have? a.8
b.11
c.22
d.41

Answers

the value of the coin times the number of coins equals the total value
so
0.05n + 0.10d + 0.25q = 4.65

the we are given that there are "three more quarters than dimes"
this translates to
q = d + 3
or
d = q - 3

then we are also given that there are "twice as many nickels as quarters"
this translates to
n = 2q

we plug d = q - 3 and n=2q
into the first equation and solve for q
0.05(2q) + 0.10(q-3) + 0.25q = 4.65

we distribute/multiply
0.10q + 0.10q - 0.30 + 0.25q = 4.65

then add like terms
0.45q - 0.30 = 4.65

then add 0.30 to both sides
0.45q = 4.95

then divide both sides by 0.45
and we get
q = 4.95/0.45 = 11

therefore there are 11 quarters

When a trinomial is factored as (x + p)(x + q), what is the sum of p and q? A.The constant term of the trinomial B.The coefficient of the x-term of the trinomial C.The coefficient of the x2-term of the trinomial D.The degree of the trinomial

Answers

It is B, the coefficient of the x-term. When you multiply this out, you get x*x+x*q+x*p+p*q, or x^2+x(p+q)+p*q
Notice how the x term is multiplied by p+q.

Hope this helps!

Find the value of x in the equation 4x - 11 = 11.

Answers

Answer:

x = 5.5

Step-by-step explanation:

4x - 11 = 11

4x = 11 + 11

4x = 22

x = 22/4 = 5.5

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