MATHEMATICS MIDDLE SCHOOL

Felicia’s mother is four times as old as Felicia. In 16 years, her mother will be twice her age. How old is Felicia now?

Answers

Answer 1

Answer:

Answer:

Step-by-step explanation:

Now:16 x 2 = 32

16 years:32 x 2 =64

64 / 2 = 32

Answer 2

Answer:

Answer:

Felicia is currently 8 years old.

Step-by-step explanation:

F=x FM=4x

4x+16=2x+0

4x=2x-16

4x/2x=2x/2x-16

2x=-16

x= (+-)8

Now double check

8yrs+16yrs=24

32yrs+16yrs=48

24 x 2 =48

Contact me if you have any questions.

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Subtract 3a^2+5ab−4b^2 from 8a^2−6ab+4b^2

Answers

Answer:

$\large\boxed{(8a^2-6ab+4b^2)-(3a^2+5ab-4b^2)=5a^2-11ab+8b^2}$

Step-by-step explanation:

$(8a^2-6ab+4b^2)-(3a^2+5ab-4b^2)\n\n=8a^2-6ab+4b^2-3a^2-5ab-(-4b^2)\n\n=8a^2-6ab+4b^2-3a^2-5ab+4b^2\qquad\text{combine like terms}\n\n=(8a^2-3a^2)+(-6ab-5ab)+(4b^2+4b^2)\n\n=5a^2-11ab+8b^2$

How do u solve 6. - 0.09

Answers

Hey There!

Whenever you subtract, remember you have to subtract from left to right. Also remember the process of regrouping, this also means to take away from tens. So whenever a number can't subtract you simply regroup it.

6.00
-0.09
_____
5.91

Have A Brainly Day!

Simplify the expression. -10 x 6 x 1/2 + 45A.
75

B.
–35

C.

–45

D.
15

Simplify the expression. 2/3 x [15 x 5 + (-24)] + (-18)

A.

52

B.
48

C.
22

D.
16

Answers

Hi there, 1. -10*6*1=-60, 60/2=30, 45-30=15. So, -10*6*1/2+45=D. 15, 2. 2/3*15*5+-24+-18=D. 16, Therefore, 1 is D. 15 and 2 is D. 16

Define perpendicular bisector as much as you can plus give example about them

Answers

A perpendicular bisector of a line segment is a line segment perpendicular to and passing through the midpoint of (the figure below). The perpendicular bisector of a line segment can be constructed using a compass by drawing circles centered at and with radius and connecting their two intersections.

What is 9/20 as a decimal and percent?

Answers

Answer: 45%

Step-by-step explanation: To write a fraction as a percent, first remember that a percent is a ratio of a number to 100. If we want to write 9/20 as a percent, we will need to find a fraction equivalent to 9/20 that has a 100 in the denominator. We can do this by setting up a proportion.

$(9)/(20)$ = $(n)/(100)$

Now, we can use cross products to find the missing value.

900 = 20n

÷20 ÷20 ← divide by 20 on both sides

45 = n

Therefore, 9/20 is equal to 45 over 100 or 45%.

___________________________________________________

Answer: 0.45

Step-by-step explanation: In order to write 9/20 as a decimal, we need to find a fraction equivalent to 9/20 with a 100 in the denominator. Notice that if we multiply both the numerator of 9/20 by 5, we get the equivalent fraction 45/100 which we can now write as a decimal. Remember that the hundredths place is two places to the right of the decimal point. So, we can write 45/100 as 0.45.

Therefore, 9/20 is equivalent to 0.45.

The required, 9/20 as a decimal is 0.45, and as a percentage is 45%.

Decimals and percentages are both ways to express numbers that are less than or equal to 1. Decimals are a way to represent numbers using the base-10 numbering system. Percentages, on the other hand, are a way to express a portion of a whole as a fraction of 100.

To convert 9/20 to a decimal, divide the numerator (9) by the denominator (20).

9 ÷ 20 = 0.45

So, 9/20 as a decimal is 0.45.

To convert 0.45 to a percentage, multiply it by 100.

0.45 x 100 = 45

So, 9/20 as a percentage is 45%.

In summary, 9/20 as a decimal is 0.45, and as a percentage is 45%.

Learn more about percentages here:

brainly.com/question/30314535

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The sum of a number and 3 is equal to 5 less than double that number. What is the number?