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3 years ago

I need help in seventh grade math

Mathematics

1 answer:

mario62 [17]3 years ago

3 0

Answer:

Below in bold.

Step-by-step explanation:

5. 1/8 and 0.125 = 12.5%

6. 6/100 = 3/50.

and 6/100 = 0.06.

7. 7/9 = 0.777....

and 77.78%.

8. 44/100 = 11/25.

and 0.44*100 = 44%

9. 625/1000 = 625/125 / 1000 / 125 = 5/8.

and 0.625.

10. 13/25 = 13*4/25/4 = 52/100 = 0.52

and 0.52 * 100 = 52%.

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Why might you need to use the addition or subtraction property of equality more than once after you have used the distributive p

Blizzard [7]

Answer:

If there is a variable term and a constant on each side of the equation, then you will need to use the addition or subtraction property of equality once to isolate the variable term and once to isolate the constant.

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3 years ago

On a rectangular hyperbola, if one point is (2, 3) and y varies inversely to x, find y when x is 6.

pickupchik [31]

Answer:

y = 1

Step-by-step explanation:

y is inversely proportion to x means that ,

y ∝ 1/x or ,

$y\ \alpha\ \frac{1}{x}$

When we remove the proportionality sign we get,

$y=k(\frac{1}{x})\\y=\frac{k}{x} \\$

now we know the point is (2 , 3) which means it corresponds to (x , y) which furthermore means y=3 when x=2,

so we insert these values and get the value of k.

$y=\frac{k}{x} \\\\3=\frac{k}{2}\\\\6=k\\$

now the equation becomes,

$y=\frac{6}{x}$

now we need to find y when x is 6 so just replace x with 6

$y=\frac{6}{x}\\\\y=\frac{6}{6} \\\\y=1$

so we get the value of y is 1

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3 years ago

One positive number is 5 times another number. The difference between the two is 1480.

Stella [2.4K]

Hey there!

Let's create a systems of equations with x and y to find our numbers.

x=5y

x-y=1480

Let's plug our x value into the second equation.

5y=y=1480

4y=1480

y=370

Now we multiply this number by five as the first equation says to get our x.

x=1850

Our numbers are 1850 and 370.

I hope this helps!

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3 years ago

Whats 32% of 80???????????

Debora [2.8K]

Answer: 25.6

Step-by-step explanation:

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3 years ago

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19 is greater than the sum the number n and 3

masha68 [24]

Your answer should be 19>n+3

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2 years ago