Three friends share 1/5 bag of cookies equally. How much will each person get

girls made 90 brownies for a school party. they put walnuts in 3/5 of the brownies. of the brownies that had walnuts, 1/3 of tho

nevsk [136]

Answer:

only 6 brownies had both chocolate and walnuts

Step-by-step explanation:

lets found out how many brownies had walnuts.

90/5= 18

18x3= 54 brownies had walnuts.

_______________________________________________

chocolate brownies.

90/3= 30 brownies had chocolate.

________________________________________

54+ 30= 84 brownies

90-84= 6

7 0

3 years ago

you were 20 inches tall at birth, and 48 inches tall on your 8th birthday. Create a linear equation to represent this equation.

Marianna [84]

Answer:

Part a) $y=3.5x+20$

Part b) $90\ in$

Step-by-step explanation:

Part a) Create a linear equation to represent this situation

Let

x -----> the number of years

y ----> the height in inches

we have the points

(020) ----> at birth the height was 20 inches

(8,48) ---> 8th birthday the height was 48 inches

step 1

Find the linear equation in slope intercept form

$y=mx+b$

where

m is the slope

b is the y-coordinate of the y-intercept

Find the slope m

$m=(48-20)/(8-0)\\m=3.5\ in/year$

Find the value of b

$b=20\ in$ ----> the point (0,20) is the y-intercept

substitute

$y=3.5x+20$

Part b) According to your equation, how tall will you be at age 20?

For x=20 years

substitute the value of x in the linear equation and solve for y

$y=3.5(20)+20$

$y=90\ in$

8 0

3 years ago

Suppose that the weight (in pounds) of an airplane is a linear function of the amount of fuel (in gallons) in its tank. When car

Debora [2.8K]

Step-by-step explanation:

Suppose that the weight (in pounds) of an airplane is a linear function of the amount of fuel (in gallons) in its tank. When carrying 15 gallons of fuel, the airplane weighs 2187 pounds. When carrying 35 gallons of fuel, it weighs 2303 pounds. How much does the airplane weigh if it is carrying 50 gallons of fuel?

----

You have two points relating fuel and weight.

(15,2187) and (35,2303)

------------

slope = (2303-2187)/(35-15) = 5.8

----

intercept = ?

2187 = 5.8*15 + b

b = 2100

-------

Equation:

f(x) = 5.8x + 2100

---

f(50) = 2390 lbs.

====================

6 0

3 years ago

How many 3s must be multiplied together for the product to be a number between 200 and 300? Help Please

KiRa [710]

Answer:

5

Step-by-step explanation:

3 times 3 times 3 times 3 times 3 = 243

243 is between 200 and 300

4 0

2 years ago

Read 2 more answers

2x 1/2 x3 2/3 im goin to be need a lot of helpppp

RSB [31]

Answer:

3.66666666667

or

3.67(rounded to the nearest tenth)

Step-by-step explanation:

2x 1/2 x3 2/3 = 3.66666666667

Ace Carlos

Developer

4 0

3 years ago

Read 2 more answers