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3 years ago

Solve 38 x 21 using an area Solve model model.

Mathematics

1 answer:

damaskus [11]3 years ago

5 0

it should be 798

Step-by-step explanation:

just multiply

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Gemiola [76]

Answer:

Use both methods to calculate the sale price of an item that costs $140 and has a discount of. 40%. 140 x.40 = 56. 140-56 +84. 140x.60 = $84.

Step-by-step explanation:

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2 years ago

4 equivalent fraction of 9x-7x

Alenkinab [10]

n,9X-7x is the answer

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3 years ago

If y varies directly as x, find the constant of variation if y = 25 and x = 5.

Soloha48 [4]

Answer:

The constant of variation is 5

Step-by-step explanation:

We know direct variation is of the form

y = kx

We know y =25 and x=5

25 = k*5

Divide each side by 5

25/5 = 5k/5

5 = k

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3 years ago

What is the equation for the line of symmetry in this figure?

givi [52]

Answer:

Step-by-step explanation:

The axis of symmetry for the figure is the y- axis

The y- axis has equation x = 0

6 0

3 years ago

In 2015, the population of a district was 10,600. With an annual growth rate of approximately 4%, what will the population be in

Murljashka [212]

Answer:

$19,090\ people$

Step-by-step explanation:

we know that

The equation of a exponential growth function is given by

$y=a(1+r)^x$

where

y is the population

x is the time in years since year 2015

a is the initial value

r is the rate of change

we have

$a=10,600\\r=4\%=4/100=0.04$

substitute

$y=10,600(1+0.04)^x$

$y=10,600(1.04)^x$

In the year 2040 the value of x is equal to

$x=2040-2015=25\ years$

substitute

$y=10,600(1.04)^{15} =19,090\ people$

7 0

3 years ago