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Anuta_ua [19.1K]

3 years ago

11

Is 56:81 and 7:9 equivalent ratios?

1 answer:

Margaret [11]3 years ago

6 0

Answer:

Thus, 56/81 is equivalent fraction for 8/9 times of 7/9.

Step-by-step explanation:

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-4 1/2 - 1 1/4 + 1 3/8

professor190 [17]

Answer:

4 3/8

Step-by-step explanation:

8 0

3 years ago

Please solve for n and show your work.<br> <img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B1%7D%7B3%7D" id="TexFormula1" title="

k0ka [10]

$\frac{1}{3} (n + 15) = -2$

First, replace the numerator with the parentheses.
$\frac{n+15}{3} =-2$
Second, multiply both sides by 3.
$n + 15 = -2 * 3$
Third, multiply 2 × 3 to get 6.
$n + 15 = -6$
Fourth, take away 15 from each side.
$n = -6 - 15$
Fifth, simplify -6 - 15 to get -21.
$n = -21$

Answer: n = -21

3 0

3 years ago

Describe the relationship between the area of a circle and its circumstances

valentina_108 [34]

Answer:

$A = \frac{r}{2}C$

Step-by-step explanation:

Given

Shape: Circle

Required

The area and the circumference (relationship)

This implies that, we write an expression that relates the area and the circumference.

Circumference is calculated as:

$C = 2\pi r$

Area is calculated as:

$A = \pi r^2$

The area can be rewritten as:

$A = \frac{2\pi r^2}{2}$

Further rewrite as:

$A = \frac{r}{2}*2\pi r$

Recall that: $C = 2\pi r$

So, the expression becomes

$A = \frac{r}{2}*C$

$A = \frac{r}{2}C$

6 0

3 years ago

The area enclosed by one shooting circle is 401.92 square yards. Write and solve a formula to find the radius of the shooting ci

Daniel [21]

The formula for area in terms of radius is

... A = πr²

Solving this for r, we get

... A/π = r²

... r = √(A/π) . . . . . formula for the radius

For your given area, the radius is approximately

... r = √(401.92/3.14) = √128 = 8√2

... r ≈ 11.3 . . . yards

7 0

3 years ago

My bro has homework and he needs help but I don't have the time to help him

pshichka [43]

Answer: 25

Step-by-step explanation:

Subtract 46.50 - 46.25 and you’ll get 25

8 0

2 years ago