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3 years ago

Help me pleas I don’t understand

Mathematics

1 answer:

Svetlanka [38]3 years ago

7 0

Answer:

$1.59 per gallon is the answer

Step-by-step explanation: You simply need to divide 12.72 by 8. that will give you 1.59. So the answer is the bottom right answer, which can be read as $1.59 per gallon.

Hope all of that makes sense! :)

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A single die is rolled twice. Find found the probability of rolling an odd number and a number greater than four in either order

Charra [1.4K]

Answer:

3/6 for the probability of getting and odd number and 2/6 for rolling higher than the number 4

Step-by-step explanation:

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3 years ago

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Which of the following is a solution of x2 + 2x + 8?

GalinKa [24]

I hope this helps you

x^2+2x+8=0

x^2+2x+1+7=0

(x+1)^2= -7

(x+1)^2= i^2.7

x+1= i.square root of 7

x=-1+ i.square root of 7

5 0

3 years ago

Translate this sentence into an inequality: A cheetah can reach a speed of 70 mph. However, this speed can be maintained for no

bezimeni [28]

The sentence says the speed can be maintained for no more than 1640 feet.

The "no more" means 1640 feet or less ,so the equation would be d is less than or equal to 1640.

The correct equation is A.

4 0

4 years ago

Last year, a women's professional organization made two small-business loans totaling $28,000 to young women beginning their own

igor_vitrenko [27]

Answer:

$7,000 at a rate of 7% and $21,000 at a rate of 14%.

Step-by-step explanation:

Let x be amount invested at 7% and y be amount invested at 14%.

We have been given that a women's professional organization made two small-business loans totaling $28,000. We can represent this information in an equation as:

$x+y=28,000...(1)$

The interest earned at 7% in one year would be $0.07x$ and interest earned at 14% in one year would be $0.14x$ .

We are also told that the organization received from these loans was $3,430. We can represent this information in an equation as:

$0.07x+0.14y=3,430...(2)$

Form equation (1), we will get:

$x=28,000-y$

Upon substituting this value in equation (2), we will get:

$0.07(28,000-y)+0.14y=3,430$

$1960-0.07y+0.14y=3,430$

$1960+0.07y=3,430$

$1960-1960+0.07y=3,430-1960$

$0.07y=1470$

$\frac{0.07y}{0.07}=\frac{1470}{0.07}$

$y=21,000$

Therefore, an amount of $21,000 was invested at a rate of 14%.

$x=28,000-y$

$x=28,000-21,000$

$x=7,000$

Therefore, an amount of $7,000 was invested at a rate of 14%.

8 0

3 years ago

(08.05)

Crank

If you use the first answer, the equation becomes 2x + 2y = 16. You could subtract this from equation Q to eliminate x.

The second answer makes equation P -2x - 2y = -16. You could add this to equation Q to eliminate x. You can use both of these methods to eliminate the x term, but if you can only choose one, you should choose the second option.

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