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Ierofanga [76]
3 years ago
13

Solve the equation 905=5a

Mathematics
2 answers:
Annette [7]3 years ago
7 0


905=5a

905/5=5a/5

181=a

HOPE THIS HELPS!!!!!!!!!!

Lyrx [107]3 years ago
3 0
905 = 5a                           {divide both sides by 5 since you need to find a}
<u />\frac{905}{5}= \frac{5a}{5}            {solve further}
181=a
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Rachel has 30 pounds of a mixture of candy that sells for $1.00/lb. If lollipops sell for $0.95/lb and caramel candies sell for
Lina20 [59]

Answer:

Twenty Pounds

Step-by-step explanation:

Equation #1:

30lbs x Mix Price = (Lollipop Lbs  x 0.95)  + (Caramel Lbs X 1.10)

Equation #2:

Lollipops Lbs + Caramel Lbs = 30 Lbs

<em>Rearrange expressions to solve for different variables</em>

EQ1:   Caramel Lbs = (30 - .95 Lollipop Lbs)/ 1.10      NOTE: (mix price = 1.00)

EQ2:  Lollipop Lbs = 30 - Caramel Lbs

<em>Substitute formula 1 into formula 2</em>

Lollipop Lbs = 30 - [(30 - .95 Lollipop Lbs)/1.10]

<em>Distribute divisor</em>

Lollipop Lbs  = 30 - 27.2727 + .8636 Lollipop Lbs

<em>Collect terms</em>

Lollipop Lbs  =  2.7273 + .8636 Lollipop Lbs

<em>Remove .8336 Lollipops from both sides of the equation</em>

.1364 Lollipop Lbs = 2.7273

<em>Divide both sides by .1364  </em> (Answer is  19.9949 which rounds to 20)

Lollipop Lbs =  20

PROOF:

30 = (20 x 0.95) + (10 x 1.10)

30 = 19 + 11

30 = 30   TRUE!


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3 years ago
I need help on this questions #4 and #5
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Answer:

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Citrus2011 [14]

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Step-by-step explanation:

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6 0
2 years ago
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Which number line shows -1/4 and it opposite?
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