3 years ago

What is 56.57 rounded to the nearest whole number

Mathematics

1 answer:

const2013 [10]3 years ago

3 0

Your answer would be 57

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Solve the following equation for the variable a 2a+b=c-4d

Natasha_Volkova [10]

2a+b=c-4d
a= c-4d-b/2

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3 years ago

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You want to save $4,500 to buy an above-ground swimming pool. You deposit $3,750 in an account earning 5.5% simple interest. Aft

Arlecino [84]

Assuming the price of the pool does not change, then
Additional interest required is 4500-3750=750
using
I=Pit, we set up equation
750=3750*0.055*t
Solve for t
t=750/(3750*0.055)=3.64 years.
So will need to wait 3.64 years, or rounded up to 4 years.

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3 years ago

Solve the equation by completing the square and then solving for x. 1. x^2-6x=12 2. 2x^2-24x=-20

Paraphin [41]

Answer: (x - 3)² = 21

Step-by-step explanation:

x² - 6x + ____ = 12 + ____

↓ ↑ ↑

$\frac{-6}{2} = (-3)^{2}$

x² - 6x + 9 = 12 + 9

(x - 3)² = 21

*******************************************************

Answer: (x - 6)² = 26

Step-by-step explanation:

2x² - 24x = -20

÷2 ÷2 ÷2

x² - 12x = -10

x² - 12x + ____ = -10 + ____

↓ ↑ ↑

$\frac{-12}{2} = (-6)^{2}$

x² - 12x + 36 = -10 + 36

(x - 6)² = 26

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3 years ago

The Simmons family and the Wright family each used their sprinklers last summer. The water output rate for the Simmons family's

gizmo_the_mogwai [7]

Answer:

y=25 and x=30.

Step-by-step explanation:

See picture

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3 years ago

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Suppose y varies directly with x. Write a direct variation equation that relates x and y. Then find the value of y when x=12

lidiya [134]

Answer:

Step-by-step explanation:

If two variables are directly proportional, it means that an increase in the value of one variable would cause a corresponding increase in the other variable.

Given that y varies directly with x, if we introduce a constant of proportionality, k, the expression becomes

y = kx

If y = 8 when x = 3, then

8 = 3k

k = 3/8

Therefore, the direct variation equation that relates x and y is

y = 3x/8

When x = 12, then

y = 3 × 12/8

y = 4.5

3 0

3 years ago