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4 years ago

There is a D and its 13ft squared

Mathematics

2 answers:

Gre4nikov [31]4 years ago

8 0

The answer is 13ft^2 because if you cut the figure you get a square and a rectangle the area of the square is 1ft and the area of the rectangle is 12ft. If you add the numbers you get 13ft^2

FrozenT [24]4 years ago

6 0

This is the area of a 4 by 3 rectangle and a 1 by 1 square, so the total area is:

A=(3*4)+(1*1)

A=12+1

A=13 ft^2

LOL, if 3,4, and 9 ft^2 are your only answer choices, they are all wrong. :P

You might be interested in

At the concert, there are 75 more girls than boys. If the ratio of girls to

Kryger [21]

<h3>Answers: 100 girls and 25 boys</h3>

============================================================

Explanation:

x = number of boys

The ratio of girls to boys is 4:1, meaning there are 4 times as many girls compared to boys. For example, the concert may have 40 girls and 10 boys.

For now, x is some unknown positive whole number. But we can say that 4x represents the number of girls, as we multiply by 4.

----------

We're told there are 75 more girls than boys, so,

number of girls = (number of boys) + 75

4x = x + 75

4x-x = 75

3x = 75

x = 75/3

x = 25

There are 25 boys and 4x = 4*25 = 100 girls.

We can see that 100-25 = 75 to show that there are 75 more girls compared to boys.

And also, the ratio 100:25 reduces fully to 4:1 after dividing both parts by the GCF 25. These two facts fully confirm the answers.

3 0

3 years ago

What's the answer ????

lbvjy [14]

If im correct the answer would be 4, hope i could help out.

5 0

3 years ago

Read 2 more answers

Please I need some answers

jek_recluse [69]

A) = 2
B) = -1
C) = -1

Explanation:

5 0

3 years ago

Read 2 more answers

1/2(4-+6x)=1/3x+2/3(x+9)

KonstantinChe [14]

Answer:

The value of x for the expression is 2

Step-by-step explanation:

Given algebraic expression as :

$\frac{1}{2}$ (4 + 6 x ) = $\frac{1}{3}$ x + $\frac{2}{3}$ ( x + 9 )

Now, solving the given expression

Or, $\frac{1}{2}$ × 4 + $\frac{1}{2}$ × 6 x = $\frac{1}{3}$ x + $\frac{2}{3}$ x + $\frac{2}{3}$ × 9

Or, $\frac{4}{2}$ + $\frac{6}{2}$ × x = $\frac{1}{3}$ x + $\frac{2}{3}$ x + $\frac{18}{3}$

or, 2 + 3 × x = $\frac{x}{3}$ + $\frac{2 x}{3}$ + 6

or, 2 + 3 × x = $\frac{2 x + x}{3}$ + 6

or, 2 + 3 × x = $\frac{3 x}{3}$ + 6

Or, 2 + 3 × x = x + 6

or, 3 x - x = 6 - 2

Or, 2 x = 4

∴ x = $\frac{4}{2}$

I.e x = 2

Hence The value of x for the expression is 2 Answer

8 0

3 years ago

Use the compound interest formulas A= P (1 + r/n) ^nt and A= Pe ^ rt to solve the problem given. Round to the nearest cent. Find

Dennis_Churaev [7]

Answer:

$\$30,460$
$\$30,497$
$\$30,522$
$\$30,535$

Step-by-step explanation:

We know that,

$A=P\left (1+\dfrac{r}{n}\right )^{n\cdot t}$

where,

A = Amount after time t,

P = Principle amount,

r = Rate of interest,

n = Number of times interest is compounded per year,

t = time period in year.

Investment of $25,000 for 4 years at an interest rate of 5% if the money is compounded semiannually

Here,

P = $25,000

r = 5% = 0.05

n = 2 (as compounded semiannually)

t = 4 years

Putting the values,

$A=25000\left (1+\dfrac{0.05}{2}\right )^{2\times 4}$

$=25000\left (1+0.025\right )^{8}$

$=25000\left (1.025\right )^{8}$

$=\$30,460$

Investment of $25,000 for 4 years at an interest rate of 5% if the money is compounded quarterly.

Here,

P = $25,000

r = 5% = 0.05

n = 4 (as compounded quarterly)

t = 4 years

Putting the values,

$A=25000\left (1+\dfrac{0.05}{4}\right )^{4\times 4}$

$=25000\left (1+0.0125\right )^{16}$

$=25000\left (1.0125\right )^{8}$

$=\$30,497$

Investment of $25,000 for 4 years at an interest rate of 5% if the money is compounded monthly.

Here,

P = $25,000

r = 5% = 0.05

n = 12 (as compounded monthly)

t = 4 years

Putting the values,

$A=25000\left (1+\dfrac{0.05}{12}\right )^{12\times 4}$

$A=25000\left (1+\dfrac{0.05}{12}\right )^{48}$

$=\$30,522$

Investment of $25,000 for 4 years at an interest rate of 5% if the money is compounded continuously.

$A= Pe^{rt}$

where,

A = Amount after time t,

P = Principle amount,

r = Rate of interest,

t = time period in year.

Putting all the values,

$A= 25000e^{0.05\times 4}=\$30,535$

It can be observed that, the frequent we compound the amount, the more we get.

7 0

3 years ago