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3 years ago

Two ratios that are equivalent to 7:10

Mathematics

1 answer:

Kipish [7]3 years ago

6 0

Answer:

Step-by-step explanation:

Start with 7:10.

Arbitrarily choose the multiplier 2. Multiply numerator (7) and denominator (10) by 2, obtaining 14/20. This is numerically equivalent to 7:10.

-21/(-30) is another example. It reduces to 7:10.

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If u show work you will get brainliest this is worth 12points

Rudik [331]

Hi, hope this helps, so the sum is 10+12+(-27)+(-9)+10
Then -10 + 12 - 27 - 9 + 10= -54 + 20= 26
So the answer is -26

5 0

3 years ago

-5/12-(-9/3) Reduce to simplest form

Lelechka [254]

Answer:

2 7/12

Step-by-step explanation:

−512−−93=?

Since the the second fraction is negative and you are subtracting, remove the negative sign and switch the operation to addition.

The equivalent equation is

−512+93=?

The fractions have unlike denominators. First, find the Least Common Denominator and rewrite the fractions with the common denominator.

LCD(-5/12, 9/3) = 12

Multiply both the numerator and denominator of each fraction by the number that makes its denominator equal the LCD. This is basically multiplying each fraction by 1.

(−5/12×1/1)+(9/3×4/4)=?

Complete the multiplication and the equation becomes

−5/12+36/12=?

The two fractions now have like denominators so you can subtract the numerators.

Then:

−5+36/12=31/12

This fraction cannot be reduced.

The fraction

31/12

is the same as

31÷12

Convert to a mixed number using

long division for 31 ÷ 12 = 2R7, so

31/12=2 7/12

Therefore:

−5/12−−9/3=2 7/12

3 0

4 years ago

For the given line segment, write the equation of the perpendicular bisector.

natta225 [31]

Answer:

$y=-0.8x-4.7$

Step-by-step explanation:

Let

$A(-6,-4), B(-2,1)$

we know that

The perpendicular bisector pass through the midpoint of AB

step 1

Find the midpoint AB

$M=((-6-2)/2,(-4+1)/2)$

$M=(-4,-1.5)$

step 2

Find the slope of the given line AB

The formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

substitute

$m=\frac{1+4}{-2+6}$

$m=\frac{5}{4}$

step 3

Find the slope of the perpendicular bisector

we know that

If two lines are perpendicular, then the product of their slopes is equal to -1

$m1*m2=-1$

we have

$m1=\frac{5}{4}$ ----> slope of the given line

substitute in the formula

$\frac{5}{4}*m2=-1$

$m2=-\frac{4}{5}=-0.8$

step 4

Find the equation of the perpendicular bisector

we know that

The equation of the line into point slope form is equal to

$y-y1=m(x-x1)$

we have

$m=-0.8$

$M=(-4,-1.5)$

substitute

$y+1.5=-0.8(x+4)$

$y=-0.8x-3.2-1.5$

$y=-0.8x-4.7$

3 0

3 years ago

I need help! Is this correct

riadik2000 [5.3K]

Answer:

Yes

Step-by-step explanation:

5 0

3 years ago

PLEASE HELP !!!! brainliest anwser to the person who

Olegator [25]

The answer is C!!! Hope it helped!

3 0

3 years ago