2 years ago

Natalie has a 15-pound yellow dumbbell. It is 3 times at heavy as the red dumbbell she has. How many pounds is the red dumbbell?

Mathematics

1 answer:

V125BC [204]2 years ago

7 0

5 pounds is the red dumbbell

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The sum of two consecutive integers is – 7. Find the numbers

Y_Kistochka [10]

$n,n+1$ - two consecutive integers

$n+n+1=-7\\2n=-8\\n=-4\\n+1=-3$

-4 and -3

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3 years ago

Aiden wrote a riddle: Five less than 1/5 times a number is the same as the sume of the number and 1/3. Find the number.

Brrunno [24]

The number is -6.67

Solution:

Let "n" be the number

From given,

$\text{ Five less than 1/5 times a number } = \frac{1}{5}n - 5 = \frac{5}{n} - 5$

$\text{Sum of number and 1/3 } = n + \frac{1}{3} =\frac{3n+1}{3}$

Given that,

Five less than 1/5 times a number is the same as the sum of the number and 1/3

Therefore, we get,

$\frac{n}{5} - 5 = n + \frac{1}{3}\\\\Simplify\ the\ expression\\\\n - 25 = 5(n + \frac{1}{3})\\\\n - 25 = 5n + \frac{5}{3}\\\\n - 25 = \frac{15n + 5}{3}\\\\3n - 75 = 15n + 5\\\\12n = -80\\\\n = -6.67$

Thus the number is -6.67

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2 years ago

Can anyone pls answer this! it's really urgent!

stich3 [128]

Answer:

The answer is C

Step-by-step explanation:

You need to find a common denominator and in this case its 20. SO you change 3/4ths to 15/20 and 4/5ths to 16/20ths and 19/20 stays the same. Then you cancel out the 20 because its all the same number (I think) and you have your answer.

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2 years ago

What does 30 percent equal

Hunter-Best [27]

Answer:

0.3

Step-by-step explanation:

By definition: 30% = 30/100 = 0.3

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2 years ago

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What is the length of the line?

Tanzania [10]

Answer: 11 something,i can't really see what your measuring the line from :<

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2 years ago