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3 years ago

If x:6as3:9,then x is equal to

Mathematics

1 answer:

ki77a [65]3 years ago

4 0

Answer:

x=2

Step-by-step explanation:

x/6=3/9

simplify 3/9 into 1/3

x/6=1/3

cross product

6*1=3x

6=3x

x=6/3=2

x=2

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What is 25/176 as a decimal

bija089 [108]

the answer to your question would be 0.14

To write 25/176 as a decimal you have to divide numerator by the denominator of the fraction.

4 0

3 years ago

The owner of a 4000-gal oil truck loads the truck with gasoline and keroseno. The profit on each gallon of gasoline is 16e and o

lilavasa [31]

Answer:

There were 35 gallons of gasoline and 500 gallons of kerosene.

Step-by-step explanation:

Step 1: Write data for equation 1

Let gallons of kerosene be x

Let gallons of gasoline be y

Total capacity of truck is 4000

Step 2: Form equation 1

x + y = 4000

Step 3: Write data for equation 2

Profit of total gallons of kerosene is 0.12x

Profit of total gallons of gasoline is 16y

Total profit is $620

Step 4: Form equation 2

0.12x + 16y = 620

Step 5: Find x in terms of y from equation 1

x + y = 4000

x = 4000 - y

Step 6: Substitute value of x in equation 2

0.12x + 16y = 620

0.12 (4000 - y) + 16y = 620

480 - 12y + 16y = 620

4y = 620 - 480

y = 140/4

y = 35

Step 7: Substitute value of y in equation 1 to find x

0.12x + 16y = 620

0.12x + 16 ( 35 ) = 620

0.12x = 60

x = 500

There were 35 gallons of gasoline and 500 gallons of kerosene.

6 0

2 years ago

Please help me find the total surface area

DENIUS [597]

Answer:

104cm² is the answer for this question

the formula is 2(lw + wh + lh)

2(5×6+6×2+5×2)

2×52

104cm²

8 0

2 years ago

Write the equation of the parabola in vertex form vertex (0,0) passes through (2,1)

satela [25.4K]

Answer:

$f(x)=\frac{1}{4}x^2$

Step-by-step explanation:

Recall the vertex form of a quadratic equation:

$f(x)=a(x-h)^2+k$

Where (h,k) is the vertex.

We are told that the vertex is (0,0). Therefore:

$f(x)=a(x-0)^2+(0)$

Simplify:

$f(x)=ax^2$

So, to finish the equation, we need to find a.

We know that a point is (2,1). Thus, substitute 1 for f(x) and 2 for x:

$1=a(2)^2$

Square:

$1=4a$

Divide both sides by 4:

$a=\frac{1}{4}$

So, our a value is 1/4.

And we can thus complete our equation:

$f(x)=\frac{1}{4}x^2$

And we are done :)

6 0

3 years ago

I NEED THE ANSWER(ASAP)

Ivan

Answer:

9.25

Step-by-step explanation:

For the mean, you have to add all and divide it by the numbers.

7 + 12 + 8.50 + 10 + 7 + 8 + 10.50 + 11 = 74

74 divided by 8 = 9.25

4 0

2 years ago