What is 3/5 plus 3/17 using benchmarks.

Answers

Answer 1

Answer: the best thing to do is to find a common denomiantor, and you can do this by listing the multiples.
5- 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85
17- 17 34 51 68 85 102

The lowest common multiple is 85, so you've got to multiply the first fraction by 17, and the second by 5.
3x17= 54, 5x17= 85 and 3x5= 15, 5x17= 85.
this then becomes 54/85 and 15/85, when you're adding fraction, you add the denominators- 54+15= 69, therefore, the fraction becomes 69/85
Hope this helps :)

Answer 2

Answer:

Answer:I think it’s 1/2 or 1 but I’m almost positive that it’s one of thos plz give me brain list I’ll need it

Step-by-step explanation:

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The sum of three consecutive even numbers is 78. what is the first number

Answers

This is a common algebra problem. Let us start by establishing the numbers. By the way, here is the theory behind the math.

If we call the first number $n$ , then the next consecutive even number is 2 away, so we will call it $n+2$ , and so forth, the 3rd number $n+4$

Lets form an equation! We know that given the sum of the 3 consecutive even numbers is 78, the equation is:

$n+(n+2)+(n+4)=78$

Combine like terms, and we get:

$3n+6=78$

Subtract 6 from both sides.

$3n=72$

Divide both sides by 3, and we find our number to be:

$n=24$

Hope this helped! Good luck.

$x+(x+2)+(x+4)=78\n3x+6=78\n3x=78-6\n3x=72\n \nx= (72)/(3) \n \nx=24$

The first number is 24

The value of y varies directly with the value of x, and y = –21 when x = 3.Which equations represent the relationship between y and x?

Choose exactly two answers that are correct.

A. -7x = y

B. y/x = -7

C. x/y = 7

D. xy = 7

Answers

$y=-21~~~~~x=3 \n \n a)-7x=-7*x\rightarrow-7*3=-21~~(\boxed{\checkmark})~~because~~\boxed{y=-21}\n \n b) (y)/(x) =-7~~~~~ \rightarrow (-21)/(3)=-7 ~~ (\boxed{\checkmark})$

How would you convert a mass in centigrams to a mass in milligrams?

Answers

Basically, add a zero, since that is one step down on the Metric Conversion Chart. (I'll add that at the bottom!)

So if I had 50cm of a Shrimp Ramen Noodle Packet, I'd have 500mg of the Shrimp Ramen Noodle Packet!

Metric Conversion Chart-

All you have to do is add a 0

so if I had 10 centigrams of sugar it would be 100 milligrams of sugar.

Which is greater 0.7 or 18/25?

Answers

18/25 is greater than 0.7 18/25= 0.72

18/25 is greater.
To solve you can either convert the decimal into a fraction or the fraction into a decimal. I took 18 and divided it by 25.
If you solve this, you'll end up with 0.72.
Lastly, compare 0.72 and 0.7.
You'll see that the fraction we converted is greater.

The table shows the number of Salvador has read. Find the ratio of mystery books to the total. Explain it's meaning.(look at the picture of the table)

Answers

$Total:\n\n10+7+5+2=24\n\nRatio:\n\n10:24\ ->5:12\n\nThe\ ratio\ is\ 5:12$

Final answer:

To find the ratio of mystery books to the total, divide the number of mystery books by the total number of books and simplify the ratio if possible.

Explanation:

To find the ratio of mystery books to the total, we need to divide the number of mystery books by the total number of books and simplify the ratio if possible.

In this case, the number of mystery books is 12 and the total number of books is 48. So, the ratio of mystery books to the total is 12:48.

We can simplify this ratio by dividing both the numerator and denominator by 12. This gives us a simplified ratio of 1:4.

Learn more about ratio here:

brainly.com/question/32531170

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A major league baseball player hits 70 homeruns in 162 games.create a unit rate for this questionidk whata. unit rate is

Answers

-- (162 games) / (70 homers) = average of 2.314 games per home run.

-- (70 homers) / (162 games) = average of 0.432 home run per game.

When rates are expressed as a quantity of 1, such as 2 feet per second or 5 miles per hour, they are called unit rates.
to find the unit rate of this problem you divide 162 by 70 which is 2.31

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Ana had softball practice for 2 hours. She practiced pitching for 20 minutes. For what fraction of the time did she practice pitching?

If f(x) varies directly with x, and f(x) = 18 when x = 2, find the value of f(x) when x = 6.A.6B.18C.36D.54

What is the equation of the line graphed?A) y = 3x B) y = 3x - 2 C) y = -3x - 2 D) y = -3x + 2