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Sloan [31]
3 years ago
12

The perimeter of the rectangle is 56 cm. Find the value of x. 10 cm 3x cm

Mathematics
2 answers:
krek1111 [17]3 years ago
7 0
Answer: x = 6

Explanation:

P = 2(l + w)
56 = 2(3x + 10)
56 = 6x + 20
56 - 20 = 6x
36 = 6x
36/6 = x
6 = x

Therefore, x = 6
andriy [413]3 years ago
4 0
56-10=46. 46 divided by 3=15.3 with the 3 repeating
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Is 5 a solution to the equation 3x + 1 equals 7​
Shkiper50 [21]

Answer:

no. I think its 2

Step-by-step explanation:

3x+1=7

3x=7-1

3x=6

x=2

3 0
3 years ago
Find the exact value of the expression. Do not use a calculator. If tan θ = 9, find the exact value of cot θ
adelina 88 [10]

\bf tan(\theta )=9\implies tan(\theta )=\cfrac{\stackrel{opposite}{9}}{\stackrel{adjacent}{1}}\impliedby \textit{let's find the \underline{hypotenuse}} \\\\\\ \textit{using the pythagorean theorem} \\\\ c^2=a^2+b^2\implies c=\sqrt{a^2+b^2} \qquad \begin{cases} c=hypotenuse\\ a=adjacent\\ b=opposite\\ \end{cases}


\bf c=\sqrt{1^2+9^2}\implies c=\sqrt{82} \\\\[-0.35em] ~\dotfill\\\\ cos(\theta )=\cfrac{\stackrel{adjacent}{1}}{\stackrel{hypotenuse}{\sqrt{82}}}\implies \stackrel{\textit{rationalizing the denominator}}{cos(\theta )=\cfrac{1}{\sqrt{82}}\cdot \cfrac{\sqrt{82}}{\sqrt{82}}}\implies cos(\theta )=\cfrac{\sqrt{82}}{82}

3 0
3 years ago
165 =-3(-8v + 1) + 4v<br> Thank you
Natalka [10]

Answer:

v=6

Step-by-step explanation:

5 0
3 years ago
The Summer Olympics occurs every 4 years. Every 6 years a US senator runs for reelection. If both events occurred last year how
Flauer [41]

Answer:

<u>The correct answer is 11 years</u>

Step-by-step explanation:

Summer Olympics every 4 years

US Senator runs for reelection every 6 years

Both events occurred last year

Next Summers Olympics in 3 years, 7 years, <em><u>11 years</u></em>, 15 years, 19 years, <em><u>23 years.</u></em>

Next US Senator reelection in 5 years, <em><u>11 years</u></em>, 17 years, <em><u>23 years.</u></em>

<u>The next time US Summer Olympics and the US Senate will take place the same year, will be exactly in 11 years.</u>

8 0
3 years ago
If carla does 25 jumping jacks 3 times per day how many jumping jacks will she do in 7 days?
ryzh [129]
How many jumping jacks does carla do in one day?
carla does 25 jumping jacks 3 times per day

25 + 25 + 25 = 75 jumping jacks per day 

carla does 75 jumping jacks per day, how many will she do in 7 days?

7 x 75 = 525 

Carla will do 525 jumping jacks in 7 days
5 0
3 years ago
Read 2 more answers
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