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Serjik [45]
4 years ago
12

Which of the following statements contain a variable?

Mathematics
1 answer:
iogann1982 [59]4 years ago
7 0
<h2>Answer:</h2><h2>The time it takes to wash the dishes plus 30 minutes </h2>

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Can someone solve this for me?
Helga [31]

well, we know it's a rectangle, so that means the sides JK = IL and JI = KL, so

\stackrel{JK}{3x+21}~~ = ~~\stackrel{IL}{6y}\implies 3(x+7)=6y\implies x+7=\cfrac{6y}{3} \\\\\\ x+7=2y\implies \boxed{x=2y-7} \\\\[-0.35em] ~\dotfill\\\\ \stackrel{JI}{6y-6}~~ = ~~\stackrel{KL}{2x+20}\implies 6(y-1)=2(x+10)\implies \cfrac{6(y-1)}{2}=x+10 \\\\\\ 3(y-1)=x+10\implies 3y-3=x+10\implies \stackrel{\textit{substituting from the 1st equation}}{3y-3=(2y-7)+10} \\\\\\ 3y-3=2y+3\implies y-3=3\implies \blacksquare~~ y=6 ~~\blacksquare ~\hfill \blacksquare~~ \stackrel{2(6)~~ - ~~7}{x=5} ~~\blacksquare

5 0
2 years ago
You saved 300 to spend over summer. You decide to budget 50 to spend each week. Write and equation that represents the situation
Anestetic [448]
Y=300-50x
Y= total $
X= number of weeks
5 0
3 years ago
Read 2 more answers
Ridge wood bank is offering 5% simple interest on all of their saving accounts if an account it opened with a staring balance of
marta [7]

Answer:

$230

Step-by-step explanation:

plz mark brainliest

8 0
3 years ago
Calculate the missing value. (Not drawn to scale.)
True [87]

Answer:5in

Step-by-step explanation:

1. Identify the triangle

you are given a right triangle with the hypotonus missing and are given the side lengths 3 and 4 you know the hypotonus is 5 by the 3,4,5 Pythagorean tripe, if you do not notice this it can be solved with the Pythagorean theorem a^2+b^2=c^2

2. solve (if not done with 3,4,5 triple)

3^2+4^2=c^2

9+16=c^2

25=c^2

5=c | square root both sides to cancel the square

5 0
1 year ago
Max got 6 problems wrong on a 50 question test. What percent of the questions did<br> he miss?
evablogger [386]

Answer:

8.33333333333%

Step-by-step explanation:

50/6

6 0
3 years ago
Read 2 more answers
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