Solve for y:
6.3-0.9y
y=

Answers

Answer 1

Answer: 6.3 = 0.9y

First, divide both of the sides by '0.9'
$7 = y$
Second, switch your sides.
$y = 7$

Answer: y = 7

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Eighty-four is what percent of 212? 3.962% 39.62% 2.52% 25.2%

Answers

Answer:

Option B, 39.62%

Step-by-step explanation:

We have to find 84 is what percent of 212.

For this we will put 84 in the numerator and 212 in the denominator to find the fraction first.

Then we will multiply this fraction by 100 to get the percentage.

Fraction of 84 to 212 = $(84)/(212)$

= $(21)/(53)$

Now the percentage will be $(21)/(53)* 100$

= 39.62%

Option B, 39.62% is the correct answer.

The value of percentage 84 is of 212 is 39.62%, the correct option is B.

We are given that;

Percentage= 84%

Number= 212

Now,

Suppose the value of which a thing is expressed in percentage is "a'

Suppose the percent that considered thing is of "a" is b%

Then since percent shows per 100 (since cent means 100), thus we will first divide the whole part in 100 parts and then we multiply it with b so that we collect b items per 100 items(that is exactly what b per cent means).

To find the percentage, we need to divide 84 by 212 and then multiply by 100.

By solving

84 / 212 = 0.3962

0.3962 x 100 = 39.62

Therefore, by percentage the answer will be 39.62%.

Learn more about percent here:

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The length, 18 meters, is the answer to the following question."The length of a rectangle is three meters longer than its width. The area of the rectangle is 270 square meters. What is the length of the rectangle?"
Rework this problem: Write an equation using ???? as the length (in meters) of the rectangle that would lead to the solution of the problem. Check that the answer above is correct by substituting 18 for ???? in your equation.

Answers

Answer:

L = B + 3 ..................(1)

L × B = 270 m² .................(2)

on solving we get

L = 18 m, B = 15 m

Step-by-step explanation:

Let the length of the rectangle be L

and,

Width of the rectangle be 'B'

thus,

according to the question

L = B + 3 ..................(1)

And, area of the rectangle = 270 m²

also,

Area of the rectangle = L × B = 270 m² ...........(2)

on substituting 'L' from equation 1 in equation 2, we get

( B + 3 ) × B = 270

B² + 3B - 270 = 0

B² + 18B - 15B - 270 = 0

B( B + 18 ) - 15(B + 18) = 0

( B - 15 ) × ( B + 18 ) = 0

thus, we get

B = 15 m (accepted ) and B = -18 m (neglected : since the length cannot be negative)

therefore,

From 1, we get

L = 15 + 3 = 18 m

X^2 + 3x - 18 = 0
Solve using the quadratic formula

Answers

$x^2+3x-18=0\n\na=1;\ b=3;\ c=-18\n\n\Delta=b^2-4ac\to\Delta=3^2-4\cdot1\cdot(-18)=9+72=81\n\nx_1=(-b-\sqrt\Delta)/(2a);\ x_2=(-b+\sqrt\Delta)/(2a)\n\n\sqrt\Delta=√(81)=9\n\nx_1=(-3-9)/(2\cdot1)=(-12)/(2)=-6;\ x_2=(-3+9)/(2\cdot1)=(6)/(2)=3$

x+6 and x-3 in which the absolute value would be if a positive 3 and a negative 6

You have exactly $120 to spend on a new outfit. If your state has 8% sales tax, what is the highest pre-price tax you can pay without going over budget? is it A. $97.68 B. 100.00 C. 105.05 D. 111.11

Answers

You have exactly $120 to spend on a new outfit. If your state has 8% sales tax, what is the highest pre-tax price you can pay without going over budget?8% of 120 is 110.4

I need help with this ASAP, please thank you