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3 years ago

What value of x makes the equation true? 42/54= x/9 A. 2 B. 7 C. 14 D. 36

Mathematics

1 answer:

adoni [48]3 years ago

7 0

B) 7 would make it true, since both 42/54 and 7/9= 0.77 repeating

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If a¹/n =r then which of the following are true statements?

TEA [102]

Answer:

statement B and C are true...hope this helps:)

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2 years ago

The price of patatoes first increased by 10% and then fell by 8%. Find the net percentage change in the price of patatoes.

timofeeve [1]

Answer:

10%-8%=2

2/8=0.25

0.25×100=25

The net percentage is 25%

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3 years ago

For the years from 2002 and projected to 2024, the national health care expenditures H, in billions of dollars, can be modeled b

dmitriy555 [2]

Answer:

2019.

Step-by-step explanation:

We have been given that for the years from 2002 and projected to 2024, the national health care expenditures H, in billions of dollars, can be modeled by $H = 1,500e^{0.053t}$ where t is the number of years past 2000.

To find the year in which national health care expenditures expected to reach $4.0 trillion (that is, $4,000 billion), we will substitute $H=4,000$ in our given formula and solve for t as:

$4,000= 1,500e^{0.053t}$

$\frac{4,000}{1,500}=\frac{ 1,500e^{0.053t}}{1,500}$

$\frac{8}{3}=e^{0.053t}$

$e^{0.053t}=\frac{8}{3}$

Take natural log of both sides:

$\text{ln}(e^{0.053t})=\text{ln}(\frac{8}{3})$

$0.053t\cdot \text{ln}(e)=\text{ln}(\frac{8}{3})$

$0.053t\cdot (1)=0.9808292530117262$

$\frac{0.053t}{0.053}=\frac{0.9808292530117262}{0.053}$

$t=18.506212320$

So in the 18.5 years after 2000 the expenditure will reach 4 trillion.

$2000+18.5=2018.5$

Therefore, in year 2019 national health care expenditures are expected to reach $4.0 trillion.

7 0

3 years ago

If the area of the triangular kite is 24 square ft and its base is 4 feet, find the height of the kite.

beks73 [17]

Area of a triangle is A = (1/2) (b) (h). Here we are given A and b and need to find h.

A = 24 ft^2 = (1/2) (4 ft) (height)

24 = 2(height) => height is 12 ft (answer)

3 0

3 years ago

Please help!!! Evaluate the following expression.<br><br> 10 x (-9 x (-6))

finlep [7]

Answer: 540

Step-by-step explanation:

To solve this expression, we use PEMDAS to solve it.

-9*-6= 54

54*10=540

3 0

2 years ago

Read 2 more answers