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kipiarov [429]
3 years ago
5

Help please)))))))))))))))))))

Mathematics
1 answer:
timurjin [86]3 years ago
5 0
The giraffe (using the ruler) is 11 cm.

1 cm : 50 cm

Multiply both sides by 11.

11 cm : 550 cm 

There are 0.01 meters in 1 centimeter.

Multiply 550 cm by 0.01.

(550)(0.01) = 5.5

The giraffe's real length is 5.5 meters.
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A system of equations is graphed on the coordinate plane. 2y=3x−14y=6x−2 Select the number of solutions for the system of equati
zloy xaker [14]

The pair of the linear system has a unique solution. Then the number of solutions is exactly one.

<h3>What is the linear system?</h3>

It is a system of an equation in which the highest degree of the variable is always 1. A one-dimension figure that has no width. It is a combination of infinite points side by side.

Given

The equations are 2y = 3x - 14 and y = 6x - 2.

We know the condition.

\rm \dfrac{a_1}{a_2} \neq  \dfrac{b_1}{b_2}\\\\\dfrac{6}{3} \  \neq \dfrac{1}{2}

The system of equations follows the condition.

The graph is shown below.

Since the pair of the linear system has a unique solution.

Thus, the number of solutions is exactly one.

More about the linear system link is given below.

brainly.com/question/20379472

8 0
2 years ago
I need the answer please
hammer [34]

Answer:

B

Step-by-step explanation:

3 0
3 years ago
Karyn proofreads 15 pages in 2 hours for $40. What is her proofreading rate in pages per hour?
vladimir1956 [14]
Hey there,
2 hours = 15 pages
1 hour = 15 / 2
           = 7.5 pages
15 pages = $40
1 page = $40 / 15
            = $2.666666666666667
7.5 pages= $2.666666666666667 x 7.5
               = $20

Hope this helps :))

~Top
4 0
3 years ago
The table shows the number of books donated to a library each month. Suppose the growth continues exponentially.
telo118 [61]
\bf \begin{array}{ccll}&#10;\stackrel{t}{months}&\stackrel{A}{books}\\&#10;\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\&#10;0&80\\&#10;1&100\\&#10;2&125&#10;\end{array},    we know that on Month 0, the Books were 80

\bf \qquad \textit{Amount for Exponential Growth}\\\\&#10;A=I(1 + r)^t\qquad &#10;\begin{cases}&#10;A=\textit{accumulated amount}\to &80\\&#10;I=\textit{initial amount}\\&#10;r=rate\to r\%\to \frac{r}{100}\\&#10;t=\textit{elapsed time}\to &0\\&#10;\end{cases}&#10;\\\\\\&#10;80=I(1+r)^0\implies 80=I\qquad therefore\qquad \boxed{A=80(1+r)^t}

we also know that on the first month there were 100 books,

\bf \qquad \textit{Amount for Exponential Growth}\\\\&#10;A=I(1 + r)^t\qquad &#10;\begin{cases}&#10;A=\textit{accumulated amount}\to &100\\&#10;I=\textit{initial amount}\\&#10;r=rate\to r\%\to \frac{r}{100}\\&#10;t=\textit{elapsed time}\to &1\\&#10;\end{cases}&#10;\\\\\\&#10;100=80(1+r)^1\implies \cfrac{100}{80}=1+r\implies \cfrac{5}{4}=1+r&#10;\implies &#10;\cfrac{5}{4}-1=r&#10;\\\\\\&#10; \cfrac{1}{4}=r\implies 0.25=r\qquad therefore\qquad \boxed{A=80(1+0.25)^t}

now, how many books when t = 8?   A=80(1+0.25)⁸, or A=80(1.25)⁸.
7 0
3 years ago
Read 2 more answers
What is -4 3/10 - 8 3/10
nadya68 [22]

Answer:

-12 3/5

Step-by-step explanation:

-4 3/10 - 8 3/10

The signs are the same so we add and then take the sign

4 3/10 + 8 3/10

Add the whole numbers

4+8 = 12

Add the fractions

3/10 + 3/10 = 6/10

Simplify the fraction

6/10 = 3/5

Put them together

12 3/5

Add the sign

-12 3/5

4 0
3 years ago
Read 2 more answers
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