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marshall27 [118]
2 years ago
5

A boat can travel 477 miles on 53 gallons of gasoline.How much gasoline will it need to go 45 miles

Mathematics
1 answer:
Rama09 [41]2 years ago
4 0

Answer

140.29 miles

Step-by-step explanation:

477miles/ 153 gallons = <em>x</em> miles/45 gallons

criss-cross multiplication and solve for x

477 x <em> 45 = 153 x</em>

x = (45x477) / 153 =  140.29 miles

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Which of these choices show a pair of equivalent expressions?
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Answer:

A. 6^2/7 and (√6)^7

Step-by-step explanation:

Because we can't get 6 out of root as a whole we need to use the power to show its value when we do so.

The power of (√6)^7 has is seven and degree of the root is 2 so we have to put 2/7 over 6 when we take it out of root.

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A man earned x pesos in 10 days and spent y pesos during each of those days. Write an expression to determine how many pesos he
Vsevolod [243]

Answer:  \dfrac{x}{10}-y

Step-by-step explanation:

Given : A man earned x pesos in 10 days and spent y pesos during each of those days.

i.e. Total earning in 10 days = x

Earning per day =\dfrac{x}{10}    [By unitary method]    (1)

Money spent per day =y      (2)

We know that

\text{Savings = Money earned - Money spent}

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\text{Savings = }\dfrac{x}{10}-y

Hence, the expression to determine how many pesos he saved per day will be:-

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3 0
3 years ago
What is x in 3x+3= -2x-12
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3x+3=-2x-12 \\ 3x+2x=-12-3 \\ 5x=-15 \\ x=-3 \\ \\ \text{The answer is x=-3 ;)}
7 0
3 years ago
Read 2 more answers
One hamburger and one coke cost $3.20. Three hamburgers and one coke cost $8.00. Find the cost of one hamburger.
Varvara68 [4.7K]

Answer:

$0.80

Step-by-step explanation:

-3 (1x + 1y = 3.2)

3x + 1y = 8

----------------

-3x - 3y = -9.6

+

3x + 1 y = 8

-------------------

0x -2y = -1.6

÷ -2

-----------------

y = 0.8

one hamburger costs $0.80

5 0
3 years ago
Read 2 more answers
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