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2 years ago

Audrey mowed 12 lawns in 9 hours. What was her rate of mowing in hours per lawn?

Mathematics

2 answers:

horsena [70]2 years ago

6 0

12 lawns/9 hours = 1.33 lawns per hour

kicyunya [14]2 years ago

3 0

Step-by-step explanation:

12=9

1=x

(cross multiply

12x=9

divide both sidesby 12

12x/12= 9\12

x= o.75

approximately 1

thank you

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What is the recursive formula when given the explicit formula for the following geometric sequence?

GenaCL600 [577]

Answer:

$\left \{ {{a_1=12} \atop{a_n=a_{n-1}*(33)}} \right.$

Step-by-step explanation:

For a geometric sequence the explicit formula has the following formula:

$a_n=a_1(r)^{n-1}$

Where $a_1$ is the first term in the sequence, and r is the common ratio and $a_n$ is the nth term of the sequence:

In this case we have the following sequence

$a_n = 12(33)^{n-1}$

Then:

$a_1=12\\r=33$

The recursive formula for the geometric sequence has the following formula

$\left \{ {{a_1} \atop {a_n=a_1*r}} \right.$

Where $a_1$ is the first term in the sequence, and r is the common ratio and $a_n$ is the nth term of the sequence:

In this case the recursive formula is:

$\left \{ {{a_1=12} \atop{a_n=a_{n-1}*(33)}} \right.$

4 0

3 years ago

explain how the relationship between the mean and median provides information about the symmetry or skewness of the data's distr

Klio2033 [76]

Answer:

mean gives you the average of the information, median gives the perfect number. brainliest please

4 0

2 years ago

What is 1.158×10-7 in standard notation

inysia [295]

$\bf \stackrel{\textit{scientific notation}}{1.158\times 10^{-7}}\implies \stackrel{\textit{standard notation}}{0\underline{.0000001}58}\leftarrow \begin{array}{llll} 10^{-7}\textit{ means we move the dot}\\ \textit{7 slots to the left} \end{array}$

7 0

4 years ago

Please help, I’ll give brainlyist FIND THE MEASURE OF A

Ksenya-84 [330]

Answer:

18°

Step-by-step explanation:

The m∠A ≅ x+32

The angle opposite 36° is 36° & the angle opposite x+126 is x + 126: Vertical angles theorem

The three angles in the triangle with m∠A are 36°, x+126°, and x+32°(m∠A)

36+x+126+x+32 = 180 : Angles in a triangle theorem

194+2x = 180

2x = -14

x= -7

m∠A ≅ -14+32

m∠A≅ 18°

I hope this helps!!!

6 0

3 years ago

Supper saver grocery carries a 128 ounce jug of iced tea. The nutritional label states that the jug serves 16 people . Which rat

frez [133]

Answer:

1:16 for every 16oz there is a 1 person serving.

Step-by-step explanation:

"128 ounce jug of iced tea. The nutritional label states that the jug serves 16 people."

16:128 is your given ratio, this is already a correct answer, but we will simplify by finding the GCF (greatest common factor) and dividing by that.

Factorization of 16 Factorization of 128

$\left[\begin{array}{ccc}16& & \\2&8& \\2 &4 & \\2 & 2\\2& 1 \end{array}\right]$ $\left[\begin{array}{ccc}128 \\2 &64\\2 &32\\2&16\\2&8\\2&4\\2&2\\2&1 \end{array}\right]$

The common factors we have are: 2x2x2x2 which is = 16 = GCF

so lets simplify our ratio by dividing by the GCF

$\frac{16}{16}:\frac{128}{16} = 1:16$

5 0

3 years ago