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Norma-Jean [14]
2 years ago
9

If you take a number, times by 5 then add 7. You get the same as if you took the number, times by 9 then add 3. What is the numb

er?
Mathematics
2 answers:
Scorpion4ik [409]2 years ago
6 0

Answer:

5_7=2 9_3=6. 5+7=12 9+3=12

Step-by-step explanation:

miss Akunina [59]2 years ago
5 0

Answer:

I got 291. And my number was 5.

Step-by-step explanation:

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What is the perimeter of trapezoid JKLM? j -7,4 k -4,4 m -8,3 l -2,3
kompoz [17]
Check the picture below.

you can pretty much just count off the grid the units for JK and MI.

now, let's check how long are KI and JM

\bf \textit{distance between 2 points}\\ \quad \\
\begin{array}{lllll}
&x_1&y_1&x_2&y_2\\
%  (a,b)
K&({{ -4}}\quad ,&{{ 4}})\quad 
%  (c,d)
I&({{ -2}}\quad ,&{{ 3}})
\end{array}\qquad 
%  distance value
d = \sqrt{({{ x_2}}-{{ x_1}})^2 + ({{ y_2}}-{{ y_1}})^2}
\\\\\\
KI=\sqrt{[-2-(-4)]^2+[3-4]^2}\implies KI=\sqrt{(-2+4)^2+(3-4)^2}
\\\\\\
KI=\sqrt{2^2+(-1)^2}\implies KI=\sqrt{4+1}\implies \boxed{KI=\sqrt{5}}\\\\
-------------------------------

\bf \begin{array}{lllll}
&x_1&y_1&x_2&y_2\\
%  (a,b)
J&({{ -7}}\quad ,&{{ 4}})\quad 
%  (c,d)
M&({{ -8}}\quad ,&{{ 3}})
\end{array}\qquad 
%  distance value
\\\\\\
JM=\sqrt{[-8-(-7)]^2+[3-4]^2}\implies JM=\sqrt{(-8+7)^2+(3-4)^2}
\\\\\\
JM=\sqrt{(-1)^2+(-1)^2}\implies \boxed{JM=\sqrt{2}}

so, add all sides, and that's the perimeter of the trapezoid.

8 0
3 years ago
The Key Club is hosting a banquet as a fundraiser. If 60 people attend, they make $500. If 80 people attend, they make $1500. Wr
kherson [118]

Answer:

415

Step-by-step explanation:

500/60=8.33

8.33x50=415

5 0
1 year ago
Read 2 more answers
Solve for x please. I need step-by-step explanation. Thank you. ​
Amiraneli [1.4K]

Step-by-step explanation:

  • (7x)^x=7^{7^7}

<u>log both sides:</u>

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  • xlog_7(7x)=7^7
  • x(1 +log_7x) = 7*7^6
  • x(1 +log_7x) = 7^6(1+6)
  • x(1 +log_7x) = 7^6(1+log_77^6)

<u>Compare both sides to get:</u>

  • x=7^6

or

  • x=117649
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alexira [117]

I wrote my decision on a piece of paper.

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At the gas station, each liter of gas costs $3 but there's a promotion that for every beverage you purchase you save $0.20 on ga
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