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3 years ago

Plz help due tomorrow

Mathematics

1 answer:

gizmo_the_mogwai [7]3 years ago

6 0

Answer:

a) The addition property of equality

b) The division property of equality

Step-by-step explanation:

Here, we want to know the correct step to use

From the given question, to proceed;

All we have to do is to move the value that has a negative value on the left hand side to the right hand side

what accompanies this is the addition of the both terms, on the right hand side

After this, we now proceed to divide the sum by the coefficient of x

Thus, the correct choices are;

a) The addition property of equality

b) The division property of equality

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Y is inversely proportional to x.

Inessa [10]

Answer:

1. $xy = 63$

2. $y = 3$

Step-by-step explanation:

Given

Variation: inverse Proportion

y = 7, x = 9

Required

- Write an equation connecting y and x

- Find y when x = 21

Given that thee variation is inversely proportional;

This implies that

$y\ \alpha\ \frac{1}{x}$

Convert variation to equation

$y\ = \frac{k}{x}$ ----------- Equation 1

Where k is the constant of variation

Substitute 7 for y and 9 for x in equation 1

$7 = \frac{k}{9}$

Multiply both sides by 9

$9 * 7 = 9 * \frac{k}{9}$

$63 = k$

Substitute 63 for k in equation 1

$y = \frac{63}{x}$

Multiply both sides by x

$x * y = \frac{63}{x} * x$

$xy = 63$

Hence, the equation connecting x and y is $xy = 63$

Solving for when x = 21

Substitute 21 for x in the above equation

$21 * y = 63$

Divide both sides by 21

$\frac{21 * y}{21} = \frac{63}{21}$

$y = 3$

4 0

3 years ago

A healthcare company surveys customers to determine whether each customer

Delicious77 [7]

Answer : 59%

Step-by-step explanation:

8 0

3 years ago

Given the following sequence, find the 14th term: 3, 1, –1, –3, –5, . . .

AVprozaik [17]

3, 1, -1, -3, -5
-2 -2 -2 -2

a(n) = a₁ + d(n - 1)
a(n) = 3 - 2(n - 1)
a(n) = 3 - 2(n) + 2(1)
a(n) = 3 - 2n + 2
a(n) = -2n + 3 + 2
a(n) = -2n + 5
a₁₄ = -2(14) + 5
a₁₄ = -28 + 5
a₁₄ = -23

The answer is C.

7 0

3 years ago

Read 2 more answers

There are 30 total apples of red and 6 total apples of yellow what is the percentage of yellow apples of

Bas_tet [7]

Answer:

20%

Step-by-step explanation:

30:6=5

yellow apples - 1/5 of 30

20x5=100

20%/30=6

8 0

3 years ago

Find the area of a rectangle with a length of 15cm and a width of 3cm.

IrinaVladis [17]

Answer:

It's answer is 45 cm²

Step-by-step explanation:

Given

Length (L) = 15 cm

Breadth (B) = 3 cm

Now

Area = L * B

= 15 * 3

= 45 cm²

7 0

3 years ago