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Anton [14]
3 years ago
14

If a spider can move 4/5 of a mile every hour how many hours would it take for the spider to go 4 miles

Mathematics
2 answers:
Mademuasel [1]3 years ago
8 0

Answer:

18 miles

Step-by-step explanation:

Dmitry_Shevchenko [17]3 years ago
3 0
5 hours=answer

Because 5 x 4 =20
And 20/5 =4
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Sarah bought a sweater at the sale price of $18 the original cost of the sweater was $40 what percent represents the discount th
igomit [66]
Let’s remember the most basic thing in percentages, the equation.

Percent x Whole = Part.

We know the whole, and the part, but we are trying to find the percent, so we have to divide the two, first turn your whole and part into a decimal.

Percent x 0.4 = 0.18, so we divide 0.18 by 0.4

0.18/0.4 = 0.45

0.45 = 45%
8 0
3 years ago
11+4 (x+7) 2nd power when x=2
monitta
<span>11+4 (x+7)^2
Substitue 2 for x
</span><span>11+4 (2+7)^2
Multiply the numbers inside of the parenthesis by the exponent
11+4 (4+49)
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6 0
3 years ago
Read 2 more answers
Gas prices in shelby county are at $3.00 per gallon. if a market scientist predicts a 40% increase in the price of gas in the co
aleksley [76]

Answer-

<em>The price of gas will be</em><em> $4.2</em>

Solution-

Gas prices in shelby county = $3.00 per gallon

Market scientist predicts a 40% increase in the price of gas in the coming month.

So the new price will be,

=3+(3\times \dfrac{40}{100})

=3+(3\times 0.4)

=3+1.2

=4.2

Therefore, the price of gas will be $4.2


5 0
3 years ago
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36 is what percent of 25​
Svetach [21]
I had this question before. As a percentage is 69.4 repeating
8 0
3 years ago
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A blood sample has 50,000 bacteria present. a drug fights the bacteria such that every hour the number of bacteria remaining, r(
densk [106]

Answer:

3125 bacteria

Step-by-step explanation:

Let r(0) be the initial amount of bacteria. Every hour, r(n) decreases by half. So, after one our new value for r(n) = (1/2)r(0). After two hours, r(n') =  (1/2)r(n) =  (1/2)(1/2)r(0) = (1/2)²r(0).

After n hours, r(n) = (1/2)ⁿr(0)

So when n = 4 hours and r(0) = 50,000, then

r(4) = (1/2)⁴r(0)

r(4) = (1/2)⁴ × 50,000

r(4) = (1/16) × 50,000

r(4) = 3125

So, after 4 hours, we have 3125 bacteria present.

3 0
3 years ago
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