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3 years ago

Is 72 - 9 negative or positive, this is on IXL

1 answer:

5 0

Positive i think. cause if your asking if the answer to 72-9 is positive or negative then it is positive. cause 72-9 is 63 which is postitive. also idrk why im saying thsi is for points

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Omari types 300 words in 6 minutes. How many words does he type in 2 minutes?<br> In 1 minute?

Alchen [17]

Answer:

50 words per minute.

100 words per 2 minutes.

Step-by-step explanation:

Hope this helps!

4 0

3 years ago

Lucy’s hair grew 5/12 foot over the past year

maks197457 [2]

So about 2 inches or 5 inches

3 0

3 years ago

Read 2 more answers

*WILL GIVE 15 POINTS PLEASE HELP* You want to put 2500 in a simple interest account. It has 4% annual interest rate. How long mu

Arisa [49]

just fyi, if you spend x points on question, each user gets x/2 points (rounded up or down, I don't remember)

simple interest formula is

I=PRT

I=interest

P=principal

R=rate in decimal

T=time in years

assuming you mean that the principal is $2500 and not 2500 cents or 2500 of some other currency

interest=500

R=4%=0.04

I=PRT

500=(2500)(0.04)(T)

500=100T

divide both sides by 100

5=T

answer is 5 years

C is answer

6 0

3 years ago

Read 2 more answers

Solve the following equation. Remember to check for extraneous solutions 7/(b+3) + 5/(b-3) = (10b-2)/(b²-9).

vlabodo [156]

Answer:

b= 2 is the solution for the given equation.

Step-by-step explanation:

Here, the given expression is:

$\frac{7}{(b+3)} + \frac{5}{(b-3)} = \frac{10b -2}{(b^{2} -9)}$

Simplifying Left side, we get

$\frac{7}{(b+3)} + \frac{5}{(b-3)}$

= $\frac{7(b-3) + 5(b+3)}{(b+3)(b-3)}$

Also, by ALGEBARIC IDENTITY: $x^{2} -y^{2} = (x+y)(x-y)$

So, $(b+3)(b-3) = b^{2} -9$

So, LHS becomes $\frac{7(b-3) + 5(b+3)}{b^{2} -9}$

Compare both Left side, Right side we get

$\frac{7(b-3) + 5(b+3)}{b^{2} -9}$ = $\frac{10b -2}{(b^{2} -9)}$

or, 7(b-3) + 5(b+3) = 10b -2

⇒ 7b - 21 + 5b + 15 = 10b -2

or, 12b - 10b = 6-2

or, 2b = 4 ⇒ b = 4/2 = 2

⇒ b= 2 is the solution for the given equation.

7 0

4 years ago

On a drawing, a triangle has sides that equal 4 cm, 5 cm, and 6 cm. If the scale of the drawing is 1 cm = 20 feet, find the side

viktelen [127]

1 cm = 20 feet

the triangle's sides are 4 cm, 5 cm, and 6 cm
multiply the amount of cm with 20 feet

4(20) = 80 feet
5(20) = 100 feet
6(20) = 120 feet

Simplify, divide 10 from all numbers

80/10 = 8
100/10 = 10
120/10 = 12

8, 10, 12 is your answer

hope this helps

5 0

3 years ago

Read 2 more answers

Is 72 - 9 negative or positive, this is on IXL​

Is 72 - 9 negative or positive, this is on IXL