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Ket [755]
3 years ago
8

Your bedroom ceiling is 10 feet high and is 2/3 as high as the living room ceiling. Write and solve and solve an equation to fin

d the height h of th living room ceiling
Mathematics
2 answers:
vfiekz [6]3 years ago
3 0
H=10+(10 1/3) is a correct equation. The answer should be h=13.33
Alisiya [41]3 years ago
3 0

\text{Let the height of the living room ceiling is h feet.}\\
\\
\text{Given that the bedroom ceiling is 10 feet high and this height is }\frac{2}{3}\\
\text{as high as the living room ceiling.}\\
\\
\text{So the equation that represents this situation can be set as:}\\
\\
\frac{2}{3}\ \text{of the height of the living room = Height of ceiling of bedroom}

\Rightarrow \frac{2}{3}(h)=10\\
\\
\Rightarrow \frac{2h}{3}=10\\
\\
\text{now to solve it, first we multiply both sides by 3. so we get}\\
\\
2h=30\\
\\
\text{now divide both sides by 2 to get}\\
\\
h=15

Hence the height of the living room ceiling is: 15 feet

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2³

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I will mark best answer brainliest
Hunter-Best [27]

Answer: -1

Step-by-step explanation:

-8 (-8x - 6) = -6x - 22

distribute

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8 0
2 years ago
Read 2 more answers
Solve the inequality 4t^2 ≤ 9t-2 please show steps and interval notation. thank you!​
Misha Larkins [42]

Answer:

[0.25, 2]

Step-by-step explanation:

We have

4t² ≤ 9t-2

subtract 9t-2 from both sides to make this a quadratic

4t²-9t+2 ≤ 0

To solve this, we can solve for 4t²-9t+2=0 and do some guess and check to find which values result in the function being less than 0.

4t²-9t+2=0

We can see that -8 and -1 add up to -9, the coefficient of t, and 4 (the coefficient of t²) and 2 multiply to 8, which is also equal to -8 * -1. Therefore, we can write this as

4t²-8t-t+2=0

4t(t-2)-1(t-2)=0

(4t-1)(t-2)=0

Our zeros are thus t=2 and t = 1/4. Using these zeros, we can set up three zones: t < 1/4, 1/4<t<2, and t>2. We can take one random value from each of these zones and see if it fits the criteria of

4t²-9t+2 ≤ 0

For t<1/4, we can plug in 0. 4(0)²-9(0) + 2 = 2 >0 , so this is not correct

For 1/4<t<2, we can plug 1 in. 4(1)²-9(1) +2 = -3 <0, so this is correct

For t > 2, we can plug 5 in. 4(5)²-9(5) + 2 = 57 > 0, so this is not correct.

Therefore, for 4t^2 ≤ 9t-2 , which can also be written as 4t²-9t+2 ≤ 0, when t is between 1/4 and 2, the inequality is correct. Furthermore, as the sides are equal when t= 1/4 and t=2, this can be written as [0.25, 2]

8 0
3 years ago
Find the amount of interest on $1,500 invested for 20 days at 6.75%, compounded daily. $_____
LekaFEV [45]

Answer:

The required amount of interest is $5538.  

Step-by-step explanation:

Given : $1,500 invested for 20 days at 6.75%, compounded daily.

To find : The amount of interest ?

Solution :

Applying compound interest formula,

A=P(1+r)^t

Where, A is the amount

P is the principal P=$1500

r is the interest rate  r=6.75%=0.0675 compounded daily

t is the time t=20 days

Substitute the value in the formula,

A=P(1+r)^t

A=1500(1+0.0675)^{20}

A=1500(1.0675)^{20}

A=1500\times 3.69

A=\$5538

Therefore, The required amount of interest is $5538.

4 0
3 years ago
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