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2 years ago

You have to bake a lot of brownies for your 6th grade fund raiser! Although you have plenty

Mathematics

1 answer:

Bess [88]2 years ago

8 0

To make this easier to figure out, we can take 8 1/2 and turn it into an improper fraction.

8 1/2 = 17/2 = 34/4

Now, we can divide 34 by 3 to see how many batches of brownies we can make.

34/3 = 11.333

We can make 11.333, or just 11 full batches of brownies.

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Jess surveys her class to find out how many hours of sleep her classmates get per night. She lists the number of hours for each

zzz [600]

B and D can be answered.

7 0

2 years ago

The simple interest formula is I=Prt , where I is the interest, P is the principal, r is the interest rate, and t is the time.

DaniilM [7]

t = 5.3 years
(about 5 years 4 months)

Equation:
t = (1/r)(A/P - 1)
Calculation:
First, converting R percent to r a decimal
r = R/100 = 7.2%/100 = 0.072 per year,
then, solving our equation

t = (1/0.072)((4835.6/3500) - 1) = 5.3
t = 5.3 years

6 0

2 years ago

Use the regression line for the data in the scatterplot to answer the question. On average, how many more goals will a player sc

kari74 [83]

Answer:

A. 1/2 of a goal

Step-by-step explanation:

Hello!

Given the options:

A. 1/2 of a goal

B. 3/4of a goal

C. 1 goal

D. 4/3 goals

In a linear regression analysis the interpretation of the slope is:

> The modification of the average of Y when X increases one unit.

Given the variables

Y: Goals scored in the tournament.

X: Hours of training.

To calculate the slope, you have to use the y-intercept and choose two pairs of (Y;X) values that correspond to a value on the line, for example (1;1.5) and (2;1.5).

You can calculate the slope as b= ΔY/ΔX

$b= \frac{Y_2-Y_1}{X_2-X_1}= \frac{1.5-1}{1-0} = \frac{0.5}{1}= \frac{1}{2}$

1st value (X₁;Y₁)= (0;1)

2nd value (X₂Y₂)= (1;1.5)

So the average goals a player scores for every additional hour of practice is 1/2.

I hope this helps!

4 0

3 years ago

Read 2 more answers

The Double Scoop ice cream store ordered 100 pints of vanilla ice cream. How many quarts of ice cream did the store order?

schepotkina [342]

Answer:

50 quarts.

Step-by-step explanation:

One pint is half a quart.

100/2 = 50

100 pints should be 50 quarts.

Hope this helps!

8 0

2 years ago

Solve the system of equations. 7y + 10.x = -11 4y - 3x = -15

Sidana [21]

Answer:

x= 1

y= -3

Step-by-step explanation:

multiply them to get common factor for y or x:

3(7y+10x=-11)

10(4y-3x=-15)

21y+30x=-33

40y-30x=-150 x's cancel out so solve for y

61y = -183

/61 /61

y = -3 insert y into either equation and solve for x

4(-3) -3x=-15

x = 1

7 0

2 years ago