If you add​ Natalie's age and​ Fred's age, the result is 42 . If you add​ Fred's age to 4 times​ Natalie's age, the result is 84 . Write and solve a system of equations to find how old Fred and Natalie are?

Answer:

I believe it is C

Step-by-step explanation:

Answer:

-18.75 + 7.5x

Step-by-step explanation:

-2.5(7.5 - 3x)

you can seperate it into

-2.5 * 7.5 and -2.5 * -3x

-2.5 * 7.5 = - 18.75

-2.5 * -3x = 7.5x

so... -2.5(7.5 - 3x) = -18.75 + 7.5x

Answer:

5/8 = 20/32

Step-by-step explanation:

Answer:

A) 217.75 sales tax

B)281.40 he will pay on the loan

C)$3849.15 he will pay including total cost, interest, and tax

Step-by-step explanation:

A)

To find sales tax, multiply the price by its percentage. 6.5% in decimal is 0.065. 3350x0.065=217.75 for its sales tax.

B)

This is the same for loan.

3350x0.084=281.40 he will pay for loan.

C)

Now add it all up. 3350+217.75+281.40=3849.15

Answer:

The correct answers are:

a. $217.75!

b. $281.40!

c. $3,849.15!

Step-by-step explanation:

a. Find the sales tax by multiplying the price by its percentage (6.5%, 0.065 in decimal form)

3,350 x 0.065=217.75

so the sales tax is $217.75

b. This is the same as finding tax. Find the loan by multiplying the original price by the percentage (8.4%, 0.084 in decimal form).

3,350 x 0.084 = 281.40

so the loan is $281.40

c. This time, sum the original price with both the loan and sales tax.

3,350 + 217.75+ 281.40= 3849.15

so the total cost for the new tractor is $3,849.15

So there you have it. You have your answers right here. Hope this helps! Be sure to mark this as brainliest!

;)

Answer:

a

Step-by-step explanation:

use ur brain

Answer:

I whole 1/12

Step-by-step explanation:

2/3+1/6+2/8

= 16/24+4/24+6/24 = 26/24 = 1 whole 2/24

= I whole 1/12

( I hope this was helpful) >;D

Answer: I believe  that A is the function to this problem

Step-by-step explanation:

Answer:

1 - A is not a function

2 - B is not a function

3 - A is not a function

X can have only 1 value

for example 2B features x=5 where f(x) = -4 but also 1. That means it's not a function

Answer:

21, 14

Step-by-step explanation:

by dividing 3 from 42 you get 14, and by adding 7 you get 21. And finally by devifing 3 from 21 you get 7 and by adding 7 to 7 you get 14.

Answer:

16

Step-by-step explanation:

8x

substitute

8(2)

parenthesis mean multiplication

16

Answer:

X=1

Step-by-step explanation:

reverse multiplication -

7=4+3x

we know one value so we just isolate the 3x

7-4=3, meaning that 3x has to be equal to 3.

Then we just do 3/3=1 so therefore x=1

Also if you wanna check it then you can plug x=1 into the equation.

4+3*x or 1=4+3=7

Hopefully this helped out, have a great day

Answer:

X<-5

Step-by-step explanation:

X has to be <-5 and <=2

If you draw a number line, you can see clearly that - 5 become first than 2.

If the condition is that it has x≤2 and x< -5, you don't take the values between - 5 and 2, cause the 2nd condition makes the result ]-infinity;-5[

Answer:

4 2/25

Step-by-step explanation:

Distance ÷ Time = Average

3 2/5 ÷ 5/6 =

3 2/5 x 6/5 = 4 2/25

Answer:

Varsity has a larger IQR

Step-by-step explanation:

Answer:

Cornell- 2 trips   Jamyra- 23 mins studying   James- 182 bucks   Kaya- 5.5 hours   Runner-up- 4.5   Anthony-160 bucks   Jasmine-39 years old   Ronnie- 7.5 hours working.

Step-by-step explanation:

Answer:

He took 2 field trips last year.

Step-by-step explanation:

Three times of 2 is 6, plus 1 is seven.

Step-by-step explanation:Answer:

As it is equilateral triangle, l₁ = l₂ = b = 6 cm

Total surface area of triangular prism= (l₁ +l₂ + b)* height

                                                                 = ( 6 + 6 + 6) * 15

                                                                 = 18 * 15

                                                                 = 270 cm²

2) length = l = 8.2 in

Width = w = 3.4 in

height = h = 2

Total surface area of rectangular prism = 2*(lw + wh + hl)

= 2*(8.2*3.4  +  3.4*2  + 2*8.2)

=2 *( 27.88 + 6.8 + 16.4)

= 2 * 51.08

= 102.16

= 102 in²

6.05 = Sixty Five Hundreths

The six and five hundredths in decimal form is 6.05.

Given that,

Based on the above information, the calculation is as follows:

= 6 + 0.05

= 6.05

Learn more: brainly.com/question/16911495

Answer:

Use one of those mean median and mode calculators

Step-by-step explanation:

Answer:

too lazy rn, add every thing up. then divide by how many numbers u have

Step-by-step explanation:

:)

Answer:

x=15

Step-by-step explanation:

Supplementary angles are two angles that equal the sum of 180 degrees.

Take 4x and 8x and make it equal to 180

4x+8x=180

Add like terms:

12x=180

Divide:

x=15

To check:

Plug in 15 to both expressions

4(15)=60

8(15)=120

Add them up and they equal 180 degrees

Hope this helps! :)

Answer:

6.75 miles

Step-by-step explanation:

20.25 / 3 = 6.75

Answer:

Given : The high school stadium contains a track that surrounds a soccer field. The soccer field is 100 yards long and 70 yards wide.

The school decided to cover the semicircles with grass to create a space for stretching and other activities.

To Find: area of one of the semicircles at either end of the track

How many square yards of grass will the school need to cover the entire circle?

Solution:

Diameter of semicircle = 70 yards

Radius of semicircle = 70/2 = 35 yards

Area of semicircle at one end = (1/2)πr²

= (1/2)(22/7)35²

= 1,925 sq yards

area of one of the semicircles at either end of the track = 1,925 sq yards

square yards of grass will the school need to cover the entire circle

= 2 x   1,925

= 3850 sq yards

distance around one of the semicircles at either end of the soccer field = πr  = (22/7) 35 = 110 yards

distance around the inner lane of the track  = 100 + 100 + 110 + 110

= 420 yards

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Hope this Helps

Answer:

x squared = y

Step-by-step explanation:

Things can get more complicated, but based on the examples given, for an equation to be a function of x, it must have a single y, where the y is not raised to a power.

Option 1:  x=5

This equation doesn't have a y, so it isn't a function of x.

Option 2:  x = y squared + 9

This equation has y raised to a power, so it isn't a function of x

Option 3:  x squared = y

This equation has a y, and the y isn't raised to a power.  This is a function of x.

Option 4:  x squared = y squared + 16

This equation has y raised to a power, so it isn't a function of x

If the equations are graphed, the graphs must pass a vertical line test (a vertical line drawn anywhere should not intersect the graph more than once).

Option 1:  x=5

x=5 represents a vertical line, so it fails the vertical line test (the vertical line would overlap and intersect it infinitely many times).

Option 2:  x = y squared + 9

x = y squared + 9 is a sideways parabola.  A vertical line will cross it twice in several places

Option 3:  x squared = y

x squared = y is a parabola that opens upward.  It will pass the vertical line test

Option 4:  x squared = y squared + 16

x squared = y squared + 16 is a hyperbola (fancy graph shape) that won't pass the vertical line test.

Answer:

$0.11/per ounce

Step-by-step explanation:

x = how much it costs for 1 ounce

1.32/12 = x/1

Cross multiply

12x = 1.32

Divide 12 on both sides

x = 0.11

The answer is 99

-67-32=-99

distance can't be negative so its 99

Answer: E: all of these are factors

Step-by-step explanation: