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3 years ago

If the dimensions of a rectangular playground can be represented as (4x - 5) and (3x + 7), then what is the

Mathematics

2 answers:

olga55 [171]3 years ago

4 0

Answer:

6x $x^{2}$ + 41x + 48

Step-by-step explanation:

denis23 [38]3 years ago

3 0

Answer:

10m and 45m

Step-by-step explanation:

Just did it

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The sum of 1/7 + 2/5

matrenka [14]

Answer:

19/35

Step-by-step explanation:

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3 years ago

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A tiger traveled 3.5 km, then turned around and traveled 1,250 m back toward his starting point. How many meters was he from his

madam [21]

2,250 m from his starting point.

Just turn 3.5 into 3500.
Then subtract 3500 by 1250. And the tiger ran 2250 m.

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3 years ago

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What does 28+87÷3⋅2^3 equal

11111nata11111 [884]

Answer:

260

Step-by-step explanation:

28+29(23)

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2 years ago

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Theresa pays $9.56 for 4 pounds of tomatoes. What is the cost of 1 pound of tomatoes?

photoshop1234 [79]

Answer:

$2.39

Step-by-step explanation:

to find the cost of 1 pound , divide the cost of 4 pounds by 4

$9.56 ÷ 4 = $2.39

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2 years ago

4a/3-b/4=6<br> 5a/6+b=13<br> Solve linear system by elimination

kondor19780726 [428]

$\bf \cfrac{4a}{3}-\cfrac{b}{4}=6
\qquad \qquad 
\cfrac{5a}{6}+b=13
\\\\\\
\textit{let us remove the denominators off those folks}\\
\textit{by multiplying the first one by 12, both sides}\\
\textit{and the second one by 6, both sides, thus}
\\\\\\
12\left( \cfrac{4a}{3}-\cfrac{b}{4} \right)=12(6)\implies 16a-4b=72
\\\\\\
6\left( \cfrac{5a}{6}+b \right)=6(13)\implies 5a+6b=78$

$\bf \textit{now, let's do the elimination}
\\\\

\begin{array}{llll}
16a-4b=72&\boxed{\times 3}\implies &48a-\underline{12b}=216\\\\
5a+6b=78&\boxed{\times 2}\implies &10a+\underline{12b}=156\\
&&--------\\
&&58a+0\quad=372
\end{array}$

solve for "a", once you get "a", plug it back into either equation to get "b"

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3 years ago