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Vlad [161]
3 years ago
11

How to solve 3x/8-9=13+x/8

Mathematics
1 answer:
Nana76 [90]3 years ago
4 0

\frac{3x}{8}-9=13+\frac{x}{8}

3x - 72 = 104 + x

3x - x = 104 + 72

2x = 176

x = 176 : 2

x = 88

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Jada can bake 12 cookies in 30 minutes. A this rate, how long will it take her to bake 144 cookies?
Elodia [21]
6 hours

Working;
If 12 cookies take 30 minutes,
Then one cookie takes \frac{30}{12}

144 cookies would take <span>\frac{30}{12} * 144
=360 minutes or 6 hours</span>
3 0
4 years ago
After a 15% increase, a town has 115 people. What was the population before the increase?
Arte-miy333 [17]

Answer:

100 people

Step-by-step explanation:

<em>Population</em><em> </em><em>Of</em><em> </em><em>People</em><em>=</em><em>1</em><em>1</em><em>5</em><em>Percentage</em><em>ncrease</em><em>=</em><em>1</em><em>5</em><em>%</em>

<em>The</em><em> </em><em>New</em><em> </em><em>Population </em><em>corresponds </em><em>to</em><em> </em><em>1</em><em>1</em><em>5</em><em>%</em>

<em>(</em><em>That</em><em> </em><em>is</em><em> </em><em>1</em><em>0</em><em>0</em><em>+</em><em>1</em><em>5</em><em>)</em>

<em>We</em><em> </em><em>want</em><em> </em><em>to </em><em>find</em><em> </em><em>the</em><em> </em><em>popula</em><em>tion</em><em> </em><em>that</em><em> </em><em>corresponds</em><em> </em><em>to </em><em>100%</em><em> </em><em>that </em><em>is </em><em>the</em><em> </em><em>original</em><em> </em><em>population</em><em>.</em>

<em>Therefore</em><em> </em><em>Original </em><em>Population</em><em>;</em>

<em>\frac{100}{115}\times {115}{}</em>

<em>100 \: people</em>

7 0
3 years ago
Prove the following theorem indirectly. We will give you a start.. . Prove that a triangle cannot have two right angles.. A tria
ladessa [460]
<span>Suppose a triangle had two right angles.
The sum of all angles of any triangle is 180</span>°.
The measure of a right angle is 90°.
By difference, the measure of the other angle can be determined.
Since the two angles have a measure of 90° each, then by difference, the measure of the third angle is 180° - (90° + 90°) = 0°.
If the angle is 0°, there would only be two sides.
A triangle has three sides.
Therefore, a triangle can't have two right angles.
7 0
3 years ago
Read 2 more answers
Evaluate the function rule for the given value . Y=12 times 3x for x=-2
algol13

y=12*3^{x}

plugging x=-2 in the given equation we get

y=12*3^{-2}

=12/3²

=12/9

=4/3

so answer is 4/3

6 0
3 years ago
Read 2 more answers
The lake level was 42.5 feet in January. After the spring rain, the lake level rose 3 1/5 feet. What is the lake level now,in fr
lesya [120]
42.5
3.2
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45.7

If you want me to fully exsplain just tell me
3 0
3 years ago
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