Answer:
The answer is C.
Step-by-step explanation:
4 x 12 is how much money per worker per hour. 20 x 160 is how much the cost for the concrete. Adding them gets you the total cost.
Hope this helped!
The equation that can be used to describe the contractor’s total cost, C, if the project takes h hours to complete is C = (4 × 12)h + (20 + 160)
Given:
Number of workers = 4
Earnings of each work = $12
Yards of concrete = 20 cubic yards
Cost per cubic yards = $160
let
C = total cost
h = number of hours needed to complete the project
C = (Number of workers + Earnings of each work)number of hours + (Yards of concrete + Cost per cubic yards)
C = (4 × 12)h + (20 + 160)
Therefore, the equation that can be used to describe the contractor’s total cost, C, if the project takes h hours to complete is C = (4 × 12)h + (20 + 160)
Learn more about equation:
https://brainly.com/question/4563555
(7TH GRADE LEVEL) Read the instructions and answer questions 16-18
Answer:
Equations
Step-by-step explanation:
16:
7 · (-3) = -21
-3 · 7 = -21
-21 ÷ 7 = -3
-21 ÷ (-3) = 7
17:
-4 · (-5) = 20
-5 · (-4) = 20
20 ÷ (-4) = -5
20 ÷ (-5) = -4
18:
1.5 · (-3) = -4.5
-3 · 1.5 = -4.5
-4.5 ÷ 1.5 = -3
-4.5 ÷ (-3) = 1.5
This is 7th grade?
Hope I helped :)
Answer:
16. 7 x -3= -21
-3 x 7= -21
-21/-3=7
-21/7=3
17. -4 x -5= 20
-5 x -4= 20
20/-4=-5
20/-5=-4
18. 1.5 x -3= -4.5
-3 x 1.5=-4.5
-4.5/-3=1.5
-4.5/1.5=-3
Step-by-step explanation:
multiplication and division
How would you do this and how would you graph it on a number line
Answer:
k=-5,5
Step-by-step explanation:
first you calculate (by switching the -6 to the other side)
|k|<-1+6
second you add the -1+6 and get |k|<5
the other part will be that the |k| will turn to - negative.
now you will have -k<5 then not you have to take the negative of -k to only have, (k<-5), k equalling to -5.
But remeber you always flip the < to > when you have the greater-to-equal sign or less-to-equal sign.
1-2 Write an equation for each situation.
1. A bookstore ordered boxes of pencils for resale. The cost of the pencils was
$2.25 per box, and the shipping cost of the order was $2.80.
Answer:
y = 2.25x + 2.80
Explanation:
$2.25 dollars per box.
$2.80 Shipping is always added.
Follow my Pinterest 13jadyn13
Answer:
okay first you follow me on Pinterest
then I'll flw you back
good night
Select the correct choice below and, if necessary, fill in the answer box to complete your choice. A. (fg)(x) = nothing (Simplify your answer.) B. (fg)(x) does not exist. Select the correct choice below and, if necessary, fill in the answer box to complete your choice. A. (fg)() nothing (Simplify your answer.) B. The value for (fg)() does not exist. Select the correct choice below and, if necessary, fill in the answer box to complete your choice. A. (x) = nothing (Simplify your answer.) B. (x) does not exist. Click to select and enter your answer(s) and then click Check Answer.
Answer:
b
Step-by-step explanation:
The ratio of dogs to cats at a pet store is 3:4 Which of these shows the
possible numbers of dogs and cats in the pet store?
Answer:
Step-by-step explanation:
6/8
12/16
24/32
Those are some samples. You have to give us choices.
What is 0 divided by 0
Answer:
0
Step-by-step explanation:
You can’t divided 0 by 0 so it’s 0
solve for p:
2(p+1)=5(3p+7)
Please help!! I got to the last part of the equation and now I'm lost.
Isolate the variable by dividing each side by factors that don't contain the variable.
Exact Form:
p = −33/13
Decimal Form:
p = −2.¯538461 (terminating)
Mixed Number Form:
p = −2/7/13
an app pays creators $0.02 per view, if mary get 60,000 viwes how much money will she make? They also some times pay $0.03 per view, how much would she make then?
-IzzyArtist
Answer:
Making 0.02 per veiw getting 60,000 veiws would earn her 1200$. At 0.03 per veiw she would make 1800$ assumimg she got 60,000 veiws
Step-by-step explanation:
Solve for y: 2x-y = 3...halp meeeh pls. thhhhxxx!
Answer: Subtract 2x from both sides of the equation. Multiply each term in −y=−3−2x - y = - 3 - 2 x by −1 - 1 . Multiply (−y)⋅−1 ( - y ) ⋅ - 1 .
Step-by-step explanation:
Answer:
y= -3
Step-by-step explanation:
to find y- intercept, substitute x= 0
2 x 0 - y = 3
y= -3
Taking the square root is the blank of squaring the number
Answer:
Step-by-step explanation:
opposite
There are 2.54 centimeters in 1 inch. There are 100 inches in 1 meter. How many meter are in 158 inches?
Answer:
1.58 meters
Step-by-step explanation:
Alunch bill cost $72. If you leave your server a 20% tip how much will you be leaving as the tip?
Answer: $14.4
Step-by-step explanation:
To calculate the tip, you need to multiply the bill times .2. So 72x .2 = 14.4
he difference of two numbers is 841. The smaller of the numbers is 471. What is the other number?
Answer:
The answer is 1,312
Step-by-step explanation:
Trust me its correct
pls mark me as brainliest
What is L equal?
8+3l=l
Answer:
l=-4
Step-by-step explanation:
3l=l-8 3l-l=-8 2l=-8 l=-4
a force of 10 newtons acts in a direction 75 above horizontal moving an object 15 meters from (0,0) to (15,0). What is the work done by the force?
a. 2.59 joules
b. 3.88 joules
c. 38.82 joules
d. 150.00 joules
Answer:
150 JoulesStep-by-step explanation:
Step one:
Given data
Force F= 10N
the distance is described by the coordinate = (0,0) to (15,0)
hence the distance = 15m in the x-direction.
Step two:
Required is the work done
we know that work done is expressed as
Wd= Force* Distance
Wd= 10*15
Wd= 150 Joules
Answer:
38.82
Step-by-step explanation:
steve saw 313 birds during a bird-watching trip to Yellowstone National park.he observes 15 more trumpeter swans then sand hill cranes.he saw twice as many mountain chickadees as ducky grouses.how many birds of each type did steve observe if he saw half as many trumpeter swans as ducky grouses
I need this ASAP
Answer:
82 ducky grouses, 41 trumpeter swans, 26 sand hill cranes, 164 chikadees
Step-by-step explanation:
Please solve!! Thank you :)
Answer:
5x-1+3x+4+x+11x-21
24x-18=0
24x=18
x=3/4
AB=3/4
BC=3/4
AD=2.25 or 2 1/4
Step-by-step explanation:
IDK if it is right plz let me know if it is
What is the value of the function at x = 3? Enter your answer in the box.
Answer:
4
Step-by-step explanation:
When x is 3, y is 4
To do this, go to the right 3 units and go up until the line intersects with a grid point
At three, y is 4
Answer:
4
Step-by-step explanation:
i took the test
what does 4(3+2x) equal
Answer: 12+8x
Step-by-step explanation:
1) 4(3+2x)- Distribute the 4
4x3+4x2x t get 12+8x
Dave bought 4 cookies at a bake sale if each cookie cost 0.85 and he paid with a twenty dollar bill how much change should he get back
Answer:
$16.60
Step-by-step explanation:
4 x 0.85 = $3.40
20 - 3.40 = 16.6
Dave should get back $16.60 in change.
Answer:
$16.6 dollars back
Step-by-step explanation:
The answer is $16.6 because 0.85 times 4 is 3.4 and 20 minus 3.4 is 16.6
The length of a rectangle is four times its width.
If the area of the rectangle is 144 ft, find its perimeter.
Answer:
y = mx + c
since m = 0
c = 9
Answer: 60
suppose: the width of a rectangle is x (x > 0)
⇒ The length of a rectangle is 4x
because the area of the rectangle is 144 ft
=> 4x.x = 144
⇔ x² = 144/4 = 36
⇒ x = 6
with x = 6 ⇒ The length of a rectangle is 4.6 = 24
the perimeter of the rectangle is (6 + 24).2 = 60
Step-by-step explanation:
Which of the
following is not a
function?
PLEASE HELP
15 POINTS OR BRAINLIST
Answer:
Answer Choice D
Step-by-step explanation:
Does not pass the vertical line test but the rest of the answer choices do which makes D not a function and your solution.
Can you please make my answer the brainliest I would very much appreciate it. Thanks!
Simplify these expressions:
1. 2x + 8x
2. (5y) - 10y
3. W + 14w - 6w
4. 4x - 5x -6
Answer:
Theyre out of order.
Step-by-step explanation:
Translate each phrase or sentence into an algebraic expression, equation or
inequality.
8) Five more than four times a number is greater than sever
9) Five less than the square root of a number r
10) 10 + 3b
1
Answer:
8. 4x + 5 > 7
9. ✓x - 5
not sure about 10, is it missing information?
Solve x4 - 34x2 = -225
Answer:
x= -5,5 and -3,3
Find the slope of the line that passes through (-3, 2) and (6, 2).
Answer:
slope = 0
Step-by-step explanation:
(-3, 2) and (6, 2)
slope = (y1 - y2)/(x1 - x2)
remember, either x or y can be used but you have to be consistent
slope = (2-2)/(-3-6)
slope = 0/(-9)
slope = 0
Answer: no slope or 0
Step-by-step explanation:
The y-coordinates are the same for both points but the x coordinates are different. This signals a no-slope line, or a line where the slope is 0. Even if we apply the formula, which is [tex]\frac{y_2-y_1}{x_2-x_1}[/tex], it still ends up with 0.
Please help me....people are just using my points and im running out.....please help me!!
Answer
I think that c would equal 4
Step-by-step explanation:
If you need the explanation, here it is:
When looking at the y part of the answer, you can see it goes up by three and that it is missing a point. This means that if the equation is linear, it goes up by one. Hope that's right!!
factorise a³ - b³ + 4a-4b
Answer:
[tex]a^3-b^3+4a-4b:\:\left(a-b\right)\left(a^2+ab+b^2+4\right)[/tex]
Step-by-step explanation:
Given the expression
[tex]a^3-b^3+4a-4b[/tex]
solving the expression
[tex]a^3-b^3+4a-4b[/tex]
as
[tex]a^3-b^3[/tex][tex]\mathrm{Apply\:Difference\:of\:Cubes\:Formula:\:}x^3-y^3=\left(x-y\right)\left(x^2+xy+y^2\right)[/tex]
[tex]a^3-b^3=\left(a-b\right)\left(a^2+ab+b^2\right)[/tex]
also
[tex]4a-4b[/tex][tex]\mathrm{Factor\:out\:common\:term\:}4[/tex]
[tex]=4\left(a-b\right)[/tex]
so the expression becomes
[tex]=\left(a-b\right)\left(a^2+ab+b^2\right)+4\left(a-b\right)[/tex]
[tex]\mathrm{Factor\:out\:common\:term\:}\left(a-b\right)[/tex]
[tex]=\left(a-b\right)\left(a^2+ab+b^2+4\right)[/tex]
Therefore,
[tex]a^3-b^3+4a-4b:\:\left(a-b\right)\left(a^2+ab+b^2+4\right)[/tex]
Solve for x. I really need help!
Answer:
9
Step-by-step explanation:
Please give me brainliest.