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brilliants [131]
2 years ago
14

After getting 5 new rocks, George gave half of his rock collection to Susan. If George gave Susan 36 rocks, which equation could

be used to determine how many rocks George started with?
One-half x = 36 + 5
One-half (x minus 5) = 36
One-half (x + 5) = 36
One-half x + 5 = 36
Mathematics
2 answers:
White raven [17]2 years ago
7 0

Answer:

1/2 (x+5) = 36  should be the equation that is used to determine how many rocks George started with.

Step-by-step explanation:

Let 'x' be the number of rocks George had.

As George gave, after getting 5 new rocks, half of his rock collection to Susan which is = 36 rocks

It means after getting 5 new rocks George's total rocks = 72

Given that he gave half collection to Susan = 36

Thus, before inducting 5 new rocks Georg's total rocks were = 67

Thus,

1/2 (x+5) = 36 should be the correct equation.

solving

1/2 (x+5) = 36

Multiplying both sides by 2

1/2 (x+5) × 2 = 36 × 2

x+5 = 72

x = 72 - 5

x = 67

Thus, before getting 5 new rocks, the number of rocks George had = 67

Therefore,

1/2 (x+5) = 36  should be the equation that is used to determine how many rocks George started with.

aksik [14]2 years ago
4 0

Answer:

c

Step-by-step explanation:

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10 (2y + 2) - y = 2 (8y - 8)
Ede4ka [16]

Answer:

10(2y+2)= 10.2y+10.2

20y+20-y

2(8y-8)=2.8y-2.8

20y+20-y=16y-16

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36/3y=?

y=-12

Step-by-step explanation:

8 0
3 years ago
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pychu [463]

Answer:

(1/3)(n - 4) = 1/6

Step-by-step explanation:

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2 years ago
I need help on this question ​
Musya8 [376]
1. added four to both sides
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A bacteria culture grows with constant relative growth rate. The bacteria count was 1,920 after 4 hours and 1,966,080 after 12 h
attashe74 [19]

From the calculation, the growth rate is 0.88.

<h3>What is the growth rate?</h3>

To find the relative growth rate

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P2 = Poe^rt

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P2/P1 gives;

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1024 = e^12r/e^4r

1024 =e^8r

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e^r = 2^1.25

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The initial size of the culture is;

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The  expression for the exact number of bacteria after t hours is

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The growth (in bacteria per hour) after 9.5 hours is

P(t) = 57e^(0.88 * 9.5)

P(t) = 243544

For the number to reach 72,000;

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4.8 = 0.88t

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Learn more about exponential growth;brainly.com/question/13674608

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8 0
2 years ago
The label on a \frac{1}{4}
alexgriva [62]

Answer:

183.63 square feet area is covered by seeds per pound

Step-by-step explanation:

Given

41\frac{1}{4} pound bag of seed cover an area of 7575 square feet

\frac{165}{4} pound bag of seed cover an area of 7575 square feet

Or

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Area in square feet covered by one pound bag of seed

= \frac{7575}{\frac{165}{4} } \\= \frac{7575 * 4}{165} \\= 183.63 square feet

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3 years ago
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