help dont get this !!!

Answer:

Priyah = 15

Amirah = 19

Shirley = 13

Step-by-step explanation:

Let A represents Amirah, P Priyah and S, Shirley.

So, we have:

[tex]A = 4 + P[/tex] --- 4 years older

[tex]S = P - 2[/tex] --- 2 years younger

[tex]A + P + S = 47[/tex]

Required

Find their ages

Substitute 4 + P for A and P - 2 for S in [tex]A + P + S = 47[/tex]

[tex]4 + P + P + P - 2 = 47[/tex]

[tex]4 + 3P - 2 = 47[/tex]

Collect Like Terms

[tex]3P = 47 - 4+ 2[/tex]

[tex]3P = 45[/tex]

Divide both sides by 3

[tex]P = \frac{45}{3}[/tex]

[tex]P = 15[/tex]

Substitute 15 for P in [tex]A = 4 + P[/tex] and [tex]S = P - 2[/tex]

[tex]A = 4 + 15[/tex]

[tex]A = 19[/tex]

[tex]S = 15 - 2[/tex]

[tex]S = 13[/tex]

Answer:

$1.60

Step-by-step explanation:

So, to find the persent of a number, we need to make the percent a decimal.

So, 20% is equal to 0.2

Then, we need to multiply 0.2*8

       8.0

*      0.2

________

       1.6

So, our answer is 1 dollar and 60 cents!

Answer:

$1.60 (shorter answer)

Answer:

10 jerseys :)))

9514 1404 393

Answer:

  11 1/9%

Step-by-step explanation:

1/9 × 100% = (100/9)% = (11 1/9)%

Answer:

b<−10

Step-by-step explanation:

Answer:

b<-10

Step-by-step explanation:

Inequality: -b-2>8

Step 1: Add 2 to both sides

-b-2+2>8+2

-b>10

Step 2: Divide both sides by -1

-b > 10

_      _

-1     -1

b<-10

Hope this helps you!!!!

Answer:

9 feet

Step-by-step explanation:

Answer:

A = 1/2 l*w

So the answer is 4.

Answer:

area=1/2(bh)

area=1/2(2 times 4)

area=1/2(8)

area=4

:)

12 inches

if the length = x,

P = 150 inches

=2 { ( 5x + 3 ) + x }

=10x + 6 + 2x

=12x + 6

Therefore 12x + 6 = 150

12x = 150 - 6

12x = 144

x = 12

Answer: In 81/ In 12 AND log 81/log 12

Step-by-step explanation: PLATO ANSWER I got 100%

To solve the problem we must know about the change of base rule for Logarithm.

The change of base rule for Logarithm helps us to change the base of any logarithmic expression to any other logarithmic expression.

[tex]log_ab = \dfrac{log_x b}{log_x a}[/tex]

where x is any base.

The expression can be expressed as [tex]\dfrac{log\ 81}{log\ 12}[/tex].

Given to us

[tex]log_{12}81\\[/tex]

use the change of base rule, [tex]log_ab = \dfrac{log\ b}{log\ a}[/tex],

[tex]log_{12}81=\dfrac{log\ 81}{log\ 12}[/tex]

Hence, the expression can be expressed as [tex]\dfrac{log\ 81}{log\ 12}[/tex].

Learn more about Logarithm:

https://brainly.com/question/7302008

Answer:

F.

A.

Step-by-step explanation:

hope this helps you

Answer:

b + g = 25

b = g + 3

Step-by-step explanation:

Let b = number of boys.

Let g = number of girls.

"Mrs. Smith has a total of 25 kids in her class."

b + g = 25

"There are 3 more boys than there are girls."

b = g + 3

The system of equations is:

b + g = 25

b = g + 3

Answer:

A $0.29

Step-by-step explanation:

4 dozen donuts is 48 donuts. (A dozen is 12 so 4 times 12 is 48). $13.92 divided by 48 is $0.29.

Answer:parallelogram

Step-by-step explanation:

Answer:

B. Two dependent samples are compared

Step-by-step explanation:

We use it when we are comparing Two dependent samples. The paired t-test can be likened to the repeated measures ANOVA test. Both of these two test are useful when comparing how a static group does in different test conditions.

But the difference between these two are:

We use the paired t-test if the explanatory variable has two levels.

While the Repeated measures ANOVA is used when the explanatory variable has greater than two levels.

Answer:

[tex]\pi \\ \\ \\ \\ \\ \\ \\ \\ \\ [/tex]

Answer:

D

Step-by-step explanDation:

Answer:

9 miles

Step-by-step explanation:

answer: 12

explanation:

you can milk 6 in five minutes so you multiple 6 by to because 10 is 5 two times

Hi there!

[tex]\large\boxed{(3) \text{ } 4x^{3} - x^{2} + 3x + 13}[/tex]

Given:

A = 6x³ - x² + 4x + 8

B = 2x³ + x - 5

Find A - B by subtracting the two equations. Subtract like-terms:

6x³ - x² + 4x + 8 - (2x³ + x - 5)

Simplify:

6x³ - x² + 4x + 8 - 2x³ - x + 5 =

4x³ - x² + 3x + 13. The correct choice is 3.

Answer:

Hi! The correct answer is $75 for 20 hours.

Step-by-step explanation:

Answer:

1 pack of butter, and 360 grams flour.

Step-by-step explanation:

it just mental math, and i kinda forget how i even got the answer, but its 1 because she only needs 240 grams. and also 360 flour.

Answer:

I'll give you the correct answer:

a) You need to times 60 by 3: 60*3. This will get you 180g, which gets your first mark.
Next, you must times 180 by 4: 180*4. This gets you 720g, and there's your final answer + the last marks.

b) (i) 420g

 (ii) 2 packs, because there is 240 g in one pack so you times it by two.

Hope this helps!

Answer:

245 times in 1.75 minutes.

Step-by-step explanation:

Hope this helps!!!

Can I have brainliest???

Answer:

68in

Step-by-step explanation:

I ready test

Answer: 68

Step-by-step explanation:

‘Multiply all of them and boom

Answer:

The number of feet of fencing that he needs will be equal to the perimeter of the circular patio.

We know that the perimeter of a circle of radius R is equal to:

P = 2*pi*R

where pi = 3.14

Then if the radius of the patio is 70ft, the perimeter of the patio will be:

P = 2*3.14*70ft = 439.6 ft

Then he needs 439.6 ft of fencing to enclose the patio.

Answer:

7.86 is the answer

Step-by-step explanation:

30% of 24.50 is 7.35.

7.35+ 7% is 7.86

7.86 to the nearest cent is 7.86

Answer:

B. .60

Step-by-step explanation:

With reference angle A

perpendicular (p) = 6

hypotenuse (h) = 10

Then

Sin A

= p/h

= 6 / 10

= 0.6

Answer:

Option B

Step-by-step explanation:

We know that

[tex] \sin( \alpha ) = \frac{side \: opposite \: to \: \alpha }{hypotenuse \: of \: triangle} [/tex]

where [tex] \ alpha [/tex] is an angle of a triangle.

In the triangle given above , [tex] \ alpha = angle A [/tex]. So,

[tex] \sin(a) = \frac{6}{10} = 0.60[/tex]

Answer:

i hoped i helped if i didnt sry

Step-by-step explanation:

Answer:

0.00768

Step-by-step explanation:

Answer:

30%

Step-by-step explanation:

1.6÷100=0.016

1% - 0.016

0.48÷0.016=30