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Nonamiya [84]
2 years ago
5

Quick Math Problems Plz Help Solve For X (Show Ur Work If U Can)

Mathematics
1 answer:
VARVARA [1.3K]2 years ago
5 0

Answer:

5. 6x^2 - x - 2

6. 9x^2 - 15x + 6\frac{1}{4}

Step-by-step explanation:

5:

  • (x+ \frac{1}{2}) (6x-4)
  • (x)(6x) + (x)(-4) + (\frac{1}{2})(6x)+(\frac{1}{2})(-4)
  • 6x^2 - 4x + 3x - 2
  • 6x^2 - x - 2

6:

  • (3x-\frac{5}{2})^2
  • (3x - \frac{5}{2})(3x - \frac{5}{2})
  • (3x)(3x) + (3x)(\frac{-5}{2}) + (\frac{-5}{2})(3x) + (\frac{-5}{2})(\frac{-5}{2})
  • 9x^2 - \frac{15}{2}x - \frac{15}{2}x + \frac{25}{4}
  • 9x^2 - 15x + \frac{25}{4}
  • 9x^2 - 15x + 6\frac{1}{4}
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8 0
3 years ago
Read 2 more answers
Melons cost $20 pet Crate, and apples cost $8 per create. an order comes in for a total of 48 crates for $420. what was the numb
Alika [10]

Answer:

The number of melon was 3 and the number of apples was 45.

Step-by-step explanation:

1. Melons cost $20 per crate and apples cost $8 per create. If the total was 48 crates for $420, you can make the following system of equations, where x is the number of melons and y is the number of apples:

\left \{ {{x+y=48} \atop {20x+8y=420}} \right.

2. By applying the Method of substitution, you can solve for y in the first equation and substitute it into the second one to find x. Then, you can substitute the value of x into the first equation to find y:

y=48-x

20x+8(48-x)=420\\20x+384-8x=420\\12x=36\\x=3

3+y=48\\y=45


4 0
3 years ago
An isosceles triangle has a vertical angle of 108 and a base 20 cm long. Solve for the base angles in calculated altitude.
xeze [42]

Answer:

The base angles are 36° each

Step-by-step explanation:

An isosceles triangle is a triangle that has two of its sides and base angles to be equal.

If an isosceles triangle has a vertical angle of 108°, then the base angles will share the remaining angle in the triangle equally.

Since the sum of angles in a triangle is 180°

The remaining angle in the triangle = 180°-108°

= 72°

Since the base angles are equal, this remaining two angles will share angle 72° equally.

The base angles = 72°/2

The base angles = 36°

This shows that the base angles are 36° each.

8 0
3 years ago
Can someone please write the for mat on how to solve the problem so I can practice, please..thank you.....20.000 × 26%
LekaFEV [45]

Answer:

20(.26) = 5.2

First you take the first number, which is 20, and then multiply it by the percentage, which is .26. Using a calculator, we get 5.2. Hope this helps.

6 0
3 years ago
Your school is ordering computer equipment. If c represents the cost of one personal computer and p is the cost of one printer.
Verizon [17]

Answer:

16c+5p

Step-by-step explanation:

5 0
3 years ago
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