Andrew was making a science project for school. He worked for 6.6 hours the first week, 2.75 hours the second week, and 4.4 hours the third week.

Andrew used the following mental math strategy to find the total number of hours he worked on his project.

Answers

Answer 1

Answer:

Step-by-step explanation:

its wierd but 2.22


Related Questions

Three family members clean the bathrooms, wash the dishes, and do the laundry. If the
3 family members split up the time equally, how much time does each person spend doing
chores?

Answers

Answer:

1/3

Step-by-step explanation:

its 1/3 for every chore soooo      1/3 then  2/3   then 3/3

Please help!!!!!!!!!

Answers

Answer:

uhm wrong guestion

Step-by-step explanation :

sorry

Bella lost 10 points 7 times playing a video game she then lost an additional a hundred points for going over the time limit what was the total change in her score​

Answers

she lost 10 7 times, so she is at -70. After losing another 100, her total score change was -170.

ga fa gza ca Morgan aca she moaned so hard

The graph of f(x)=2^x is shown in black (k). Match each transformation of this function with a graph below.

Answers

Answer:

Step-by-step explanation:

From the graph attached,

Black curve represents a function f(x) = 2ˣ

When this curve is reflected over the x-axis image of the function will be,

g(x) = -[tex]2^{x}[/tex] [Red curve]

Similarly, curve represented by h(x) = [tex]2^{-x}[/tex] is the blue curve [image of f(x) reflected over y-axis]

When this curve is reflected over the x-axis, image of the function will be,

h'(x) = [tex]-2^{-x}[/tex] [green curve]

[tex]-2^{x}[/tex] → Red

[tex]-2^{-x}[/tex] → Green

[tex]2^{-x}[/tex] → Blue

An owner of a home in the Midwest installed solar panels to reduce heating costs. After installing the solar panels, he measured the amount of natural gas used y (in cubic feet) to heat the home and outside temperature x (in degree-days, where a day's degree-days are the number of degrees its average temperature falls below 65° F) over a 23-month period. He then computed the least-squares regression line for predicting y from x and found it to be ŷ = 84 + 18x. How much, on average, does gas used increase for each additional degree-day?

Answers

Answer:

18

Step-by-step explanation:

In the linear regression equation y=a+bx, slope coefficient b represents average unit increases in y variable due to unit increase in x variable.

In the given equation ŷ = 84 + 18x, b=18 represents average unit increases in gas used due to unit increase in degree day.

Hence,on average,  gas used increase by 18 for each additional degree-day.

-3(-18)-y=56




help >_

Answers

Answer:

y = -2

Step-by-step explanation:

Step 1: Define

-3x - y = 56

x = -18

Step 2: Substitute and solve for y

-3(-18) - y = 56

54 - y = 56

-y = 2

y = -2

Answer:

y=-2

Step-by-step explanation:

this is because if you multiply -3 by -18 you get 54 and 56-54 is 2 so -y is 2

what is y over 3 (y/3) = 12

Answers

Answer:

so what i would like to do is what is 12 divid by 3 and when u get ur answer that it what the y is

Answer:

36

Step-by-step explanation:

y/3=12

y=3*12

y=36

HELP PLEASE
I need help ASAP

Answers

Answer:

1032

Step-by-step explanation:

what is the slope of the line ?

Answers

The slope of the line is - 3/4

I got my ordered pairs by finding two points on the lines, an noting down their X and Y values.
Then I used the equation Y2 - Y1 (all over) X2 - X1 by plugging in the ordered pairs.
Finally, I solved and got -3/4!
See the attached picture below



Additionally, you can use rise over run, and count the rise and the run. In the image, the rise is three, and the run is four. The slope is negative, which leaves me to know that the answer is -3/4.





Hope this helps :)

suppose four more people voted and they all voted for Jocelyn.what fraction of the vote would be for Jocelyn?

Answers

It would be 4/ and the total number of people that are voting

Answer:

The Answer is 113/348

Step-by-step explanation:



You are given the list of numbers, -9, 8, 3.0,

2

5'

2.42, 1. Which numbers are rational? Irrational?

Answers

all of the numbers happen to be rational I THINK

can someone help me ​

Answers

Answer:

a. fig. 2 has 8 tiles, 3 has 11 and 4 gas 14

b. It changed when they added sides, 2 to the up and down left part and 1 on the right left part

What is 1/8 of 72 bottles of water

Answers

72 divided by 8 is 9. So 1/8 is 9 water bottles

The perimeter of the rectangle below is 224 units. Find the length of side PQ.
Write your answer without variables.

Answers

1st find the z. Well 4z+3 is on both sites so 8z+6 and 5z+1 times 2 is 10z+2
add them and you get 12z+8=224
Now take away 8 from both sides to make it 216 and divide both sides by 12 and you get 18. Now just plug in the variable so 4x18+3 which is 75. And if it is a rectangle then it will be the same on both ends.


PQ=75

Translate this please

Answers

Answer:

x < 6

Step-by-step explanation:

x can be 6 but no higher

hope this helps

Would 2-3 have the same answer as 3-2? Why or why not?

Answers

Answer:

No

Step-by-step explanation:

2-3= -1

3-2 = 1

Divide. Reduce the answer to lowest terms. giveing brainlist

1/5 ÷ 3/4

Answers

Answer:

4/15

Step-by-step explanation:

1/5 * 4/3 = 4/15

Hope this helps and pls give me brainliest.

The solution is Option B.

The value of the equation 1/5 ÷ 3/4 is A = 4 / 15

What is an Equation?

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

Let the equation be represented as A

Now , the value of A is

A = 1/5 ÷ 3/4   be equation (1)

On simplifying the equation , we get

A = 1/5 x 4/3

A = 4 / ( 5 x 3 )

The value of A = 4 / 15

Therefore , the value of A is 4/15

Hence , the equation is A = 4/15

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Evaluate the difference quotient for the given function. Simplify your answer.
f(x) = 5 + 4x – x2,
f(3 + h) – f(3)
h
1-1-2h-h² x
Enhanced Feedback
Please try again. To evaluate f(a + h), replace x by (a + h) in the expression for f(x). Substitute this
Need Help?
Read It
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Show My Work (Required)
What steps or reasoning did you use? Your work counts towards your score.
substituting (3+h) into the equation by replacing (3+h) where there is a x value we can get the quotient. Then repla

Answers

Answer:

  -2-h

Step-by-step explanation:

It doesn't hurt to follow directions.

  [tex]q=\dfrac{f(3+h)-f(3)}{h}=\dfrac{(5 +4(3+h)-(3+h)^2)-(5 +4(3)-(3)^2)}{h}\\\\=\dfrac{5-5+4(3+h-3)-((3+h)^2-3^2)}{h}=\dfrac{4h-(6h+h^2)}{h}\\\\=\dfrac{-2h-h^2}{h}=\boxed{-2-h}[/tex]

__

Steps: substitute 3+h and 3 for x in the definition of f(x) and simplify the result.

solving literal equations HELP!!b g=x-c, for x

Answers

Answer:

Step-by-step explanation:

Not sure

Answer:

x = g + c

Step-by-step explanation:

This is the answer because:

1) Solve for  x  by simplifying both sides of the equation, then isolating the variable.

Therefore, the answer is x = g + c

Hope this helps! :D

Lucas ran 9 miles in 3/4 of an hour. He took a break then returns by traveling that same 9 miles in 2/3 of an hour. How many more miles can lucas run per hour with his new rate

Answers

Answer:

He can run more 4.5 miles [total 13.5 miles in one hour]

Step-by-step explanation:

check the attachment for explanation

Let's find
1/2+3/7
First write the addition with a common denominator.
Then add.
1/2+3/7=

Answers

Answer:

7/14+6/14=13/14

Step-by-step explanation:

find the common denominator(14)

change both fractions

1/2*7/7(2*7=14)=7/14

3/7*2/2(7*2=14)6/14

then add.

Can someone help me plssssss ;w;
The magnitude of an earthquake depending on the energy it produces can be modeled using the equation M = 0.6666 log x – 3.2. Complete the sentences about the model.
The curve representing the relationship includes the point_______ .
The growth factor is________ .
An earthquake with an energy level of has a magnitude of ________ .

Answers

Answer:   The curve representing the relationship includes the point  (1, -3.2) .

The growth factor is 0.6666 .

An earthquake with an energy level  1  of has a magnitude of -3.2 .

Hello my Alpha.... bows down*

The curve representing the relationship includes the point  (1, -3.2).

The growth factor is 0.6666. An earthquake with an energy level of has a magnitude of – 3.2.

It is given that the magnitude of an earthquake depending on the energy .it produces can be modeled using the equation M = 0.6666 log x – 3.2.

It is required to find growth factor, point and magnitude.

The curve representing the relationship includes the point_______ .The growth factor is________ .An earthquake with an energy level of has a magnitude of _______.

The amount of energy released is represented as E and an earthquake release the magnitude represented by M which is given in the question. This magnitude is represented as equation using logarithm of the height of the wave that is the scale measured by seismograph.

Thus, The curve representing the relationship includes the point  (1, -3.2).

The growth factor is 0.6666 .

An earthquake with an energy level of has a magnitude of – 3.2.

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Which numbers is a factor of 100? 8 12 15 20

Answers

Answer:

20

Step-by-step explanation:

[tex]100 = 20 \times 5[/tex]

20 is a factor of 100. 20*5=100

A merchant mixed 10 lb of a cinnamon tea with 2 lb of spice tea. The 12-pound mixture cost $13. A second mixture included 16 lb of the cinnamon tea and 8 lb of the spice tea. The 24-pound mixture cost $28. Find the cost per pound of the cinnamon tea and of the spice tea.

Answers

Step-by-step explanation:

Let's say c is the price of cinnamon tea, and s is the price of spice tea.

10c + 2s = 13

16c + 8s = 28

Divide the second equation by 4:

4c + 2s = 7

Subtract from the first equation:

6c = 6

c = 1

Use any equation to find s.

s = 1.5

Therefore, the cinnamon tea costs $1 per pound and the spice tea costs $1.50 per pound.

Which of the following relations are functions?
f={(1,2),(2,3),(3,5),(4,7)}
g={(1,3),(1,4),(2,5),(2,6),(3,7)}
h={(1,3),(2,6),(3,9),•••,(n,3n),•••}

Answers

f is a function
g is not a function
h is a function

Find the mean, median, and mode for the following scores: 8, 7, 5, 7, 0, 10, 2, 4, 11, 7, 8, 7

Answers

Answer:

mode is 7, mean, 6.3 repeating, median 7

Step-by-step explanation:

x=4-k over 6, what is k

Answers

Answer:

k = -6x+4

Step-by-step explanation:

[tex]x =\frac{4-k}{6}[/tex]

Cross Multiply

[tex]x \times 6 = (4-k)\times 1\\\\6x = 4-k[/tex]

Isolate k

[tex]6x -4 =-k[/tex]

Divide through by -1

[tex]\frac{6x}{-1} -\frac{-4}{-1} = \frac{-k}{-1}\\ \\-6x+4 =k\\\\k =-6x+4[/tex]

A _________ is used to change one unit to another?

Answers

Answer:

conversion factor

Step-by-step explanation:

A conversion factor is a number used to change one set of units to another, by multiplying or dividing. When a conversion is necessary, the appropriate conversion factor to an equal value must be used. For example, to convert inches to feet, the appropriate conversion value is 12 inches equal 1 foot.

Jordan’s credit card has an APR of 10.59%, compounded monthly. He is required to make a minimum payment of 3.96% of his current balance every month. At the beginning of March, Jordan had a balance of $628.16 on his credit card. The following table shows his credit card purchases over the next few months. Month Cost ($) March 50.81 March 48.04 April 77.36 April 32.40 April 49.20 May 25.79 May 79.39 May 79.08 If Jordan makes only the minimum monthly payments in March, April, and May, what will his balance be after he makes the minimum payment for May? (Assume that interest is compounded before the monthly payment is made, and that the monthly payment is applied at the end of the month. Round all dollar values to the nearest cent.) a. $1,094.10 b. $988.97 c. $967.60 d. $1,070.23

Answers

Answer:

b. 988.97

Step-by-step explanation:

got a 100 on the test

The balance at the end of May after the minimum payment is made is

$571.64.

What is compound interest?

It is the interest we earned on the interest.

The formula for the amount earned with compound interest after n years is given as:

A = P [tex](1 + r/n)^{nt}[/tex]

P = principal

R = rate

t = time in years

n = number of times compounded in a year.

We have,

P = $628.16

r = 10.59%

n = 12

t = 1/12

The amount after March.

A = 628.16 [tex](1 + 0.1059)^{12\times0.08[/tex]

A = $633.48

Monthly payment.

= 3.96/100 x 633.48

= $25.09

Remaining amount.

= 633.48 - 25.09

= $609.39

The amount after April.

A = 609.39 [tex](1 + 0.1059)^{12\times0.08[/tex]

A = $614.55

Monthly payment.

= 3.96/100 x 614.55

= $24.34

Remaining amount.

= 614.55 - 24.34

= $590.21

The amount after May.

A = 590.21 [tex](1 + 0.1059)^{12\times0.08[/tex]

A = $595.21

Monthly payment.

= 3.96/100 x 595.21

= $23.57

Remaining amount.

= 595.21 - 23.57

= $571.64

Thus,

The balance at the end of May is $571.64.

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A right triangle has one angle that measures 5°. What is the measure of the other acute angle?

Answers

Answer:

85

Step-by-step explanation:

There are three angles in a triangle

Since it is a right triangle one angle is 90 degrees

We are given one angle is 5 degrees

Let the third angle be x

The sum of the angles of a triangle is 180

x+5+90 =180

Combine like terms

x+95 = 180

Subtract 95 from each side

X+95-95 = 180-95

x = 85

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