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Novosadov [1.4K]
4 years ago
15

Can I get step by step explanation on these please

Mathematics
1 answer:
OLga [1]4 years ago
6 0

Aloha, thanks for using Brainly.

Step-by-step explanation:

For 1. 7/8 is 90 percent so .90

For 2+. Add the bottom together, whatever you get divide top by bottom.

The others you just divide them by each other.

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Y^2 − 20x − 6y − 51 = 0
grin007 [14]

answer:

Simplifying Y2 + -20X + -6y + -51 = 0

Reorder the terms: -51 + -20X + Y2 + -6y = 0

Solving -51 + -20X + Y2 + -6y = 0

Solving for variable 'X'.

Move all terms containing X to the left, all other terms to the right.

Add '51' to each side of the equation. -51 + -20X + Y2 + 51 + -6y = 0 + 51

Reorder the terms: -51 + 51 + -20X + Y2 + -6y = 0 + 51 Combine like terms: -51 + 51 = 0 0 + -20X + Y2 + -6y = 0 + 51 -20X + Y2 + -6y = 0 + 51

Combine like terms: 0 + 51 = 51 -20X + Y2 + -6y = 51

Add '-1Y2' to each side of the equation. -20X + Y2 + -1Y2 + -6y = 51 + -1Y2

Combine like terms: Y2 + -1Y2 = 0 -20X + 0 + -6y = 51 + -1Y2 -20X + -6y = 51 + -1Y2 Add '6y' to each side of the equation. -20X + -6y + 6y = 51 + -1Y2 + 6y Combine like terms: -6y + 6y = 0 -20X + 0 = 51 + -1Y2 + 6y -20X = 51 + -1Y2 + 6y Divide each side by '-20'. X = -2.55 + 0.05Y2 + -0.3y Simplifying X = -2.55 + 0.05Y2 + -0.3y

7 0
3 years ago
Some number added to -11 is 37. divide this number by -12. then multiply by -8. what is the final
Tems11 [23]

The answer is 17.3

I found it by subtracting 11 by 37 then you just finish calculating.

U are welcome

7 0
3 years ago
Can anyone help ......
Eduardwww [97]
The answer is <FGI and <HGD
5 0
3 years ago
Help me out with this math problem for 50 points!!!
spin [16.1K]

Answer:

A = 84 ft^{3}

Step-by-step explanation:

To find the area of a trapezoid, use this equation:

A = \frac{a+b}{2}h

a = top base

b = bottom base

h = height

Let's classify all the sides:

a = 4 ft

b = 10 ft

h = 12 ft

Now, let's plug all these into the equation:

A = \frac{4+10}{2} (12)

A = \frac{14}{2}(12)                                    Add what's in the numerator

A = 7(12)                                      Divide 14 by 2

A = 84 ft^{3}                                     Multiply 7 by 12

So, the area of the trapezoid is 84 ft^{3}.

Hope this helps!!

8 0
2 years ago
Read 2 more answers
A salad bar offers vegetable platters in 4 sizes (small, medium, large, and super-sized) and 6 different vegetables to choose fr
mihalych1998 [28]

Answer:

The number of different platters Selena can create by selecting two different vegetables is 60 different platters

Step-by-step explanation:

The information given are;

The number of different sizes of salad available = 4

The number of different vegetable to choose from = 6

The number of vegetables Selena ordered = 2

The number of ways Selena can choose 2 vegetables out of 6 = ₆C₂ = 15 ways

The number of different platters (choice of vegetable and size of platter) Selena can create = The number of different sizes of salad available × The number of ways Selena can choose the vegetables

The number of different platters (choice of vegetable and size of platter) Selena can create = 4 × 15 = 60 different platters.

7 0
4 years ago
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