Answer:
x = -8
Step-by-step explanation:
y = 3x + 14
2x - 3y = -14
So, what is the substitution? Y of course, this is because y is equal to 3x + 14.
2x - 3 (3x + 14) = -14
Multiply 3 with the numbers in the parentheses.
2x - 9x + 42 = -14
So you maybe be wondering why it is a negative 7 instead of subtracting 9 with 2. Using PEMDAS, we always read from left to right. So it is basically 2 -9 and you get -7.
-7x + 42 = -14
Then subtract 42 from both sides.
-7x + 42 - 42 = -14 - 42
Simplify
-7x = -56
Divide 7 by both sides.
-7x / 7 = -56 / 7
x = -8
And you might ask, why we get x instead afterwards. This is because both -7 and 7 cancel each other out leaving us with x.
At a football stadium, 20% of the fans in attendance were teenagers. If there were 10 teenagers at the football stadium, what was the total number of people at the stadium?
Answer:
50
Step-by-step explanation:
10 / 20% = 50
Charlie is re-landscaping his back yard and uses a coordinate plane to map the yard out. There is a pine tree located at (-5, 5); the edge of a shed is located at (-5, 1) and the edge of a sandbox is located at (2, 5). He plans to cover the triangular area formed by these three points with gravel. What area of the yard will be covered in gravel? Note: On the coordinate plane, each gridline represents 2 feet.
56 square feet
112 square feet
14 square feet
28 square feet
Answer:
A. 56 square feet
Step-by-step explanation:
8 ft * 14 ft = 112 ft
112 ft/2 = 56 ft
Good luck!!
Can someone help me with this? (statistics) (Dot plot) you need to answer I,J,K, and L. Pls help ASAP
Answer:
K is class A and L is 40%.
Step-by-step explanation:
A triangular solid is shown here.
What is the area of the
top?
right side?
front? back?
What is the total surface area of all five faces?
What is the volume?
Answer:
785
Step-by-step e MY TECH TOLD ME XD
For each decimal in the table find an equivalent fraction in the box. Use the fractions in the item bank.
Answer:
.5 is equal to 5/10
.05 is equal to 5/100
.09 is equal to 9/100
.9 is equal to 9/10
Step-by-step explanation:
Hope this helps! Mark me and brainliest if it does!
plz help I dont know this answer will mark brainliest if correct answer only.
The question is write the equation determined by the graph.
Answer:
Y=1x+3
Hopefully it helps :)
Answer:
y-3=1×(x+0)
Step-by-step explanation:
Hopefully this helps:)Good Luck!
The distance, y, in miles, traveled by a car for a certain amount of time, x, in hours, is shown in the graph below:
Which of the following best describes the motion of the car shown?
It travels for 2 hours, then stops for 3 hours, and finally travels again for 2 hours.
It travels for 2 hours, then stops for 3 hours, and finally travels again for 5 hours.
It travels for 2 hours, then stops for 1 hour, and finally travels again for 5 hours.
It travels for 2 hours, then stops for 1 hour, and finally travels again for 2 hours.
This is on FVLS, so any other students from here are welcome to answer: BUT I JUST NEED A CORRECT ANSWER, I HATE MATH
The slope of a line is -3, and a point on the line is (4,-1). What is the equation of the line expressed in slope-intercept form?
-3x + 11
Hope my answer I help you
:)
Please mark my answer as the BRAINLIEST. Plssssssssssssssssssss
giving brainliest if u answer
I don't understand this... please help :(
Answer:
Radius is the distance from the center of the circle to the edge (if you were to cut just a slice of pizza)
diameter is directly in the middle from one end to the other (if you were to cut the pizza in half)
this means that the diameter is DOUBLE the radius
circumference is the length of the outside of the circle (so the length of the pizza crust)
this one is tricky because to find circumference you need to do [tex]2\pi r[/tex] (r is the value of the radius)
so for problem 1 the radius is 3 cm (the line is equivalent to if you were trying to cut out one slice of pizza)
the diameter is DOUBLE the radius, so if you were to cut the pizza in half all the way it would be 6 cm
and the circumference ([tex]2\pi r[/tex]) is 2 * pi * 3 cm
because it says to round pi to 3.14, the circumference would be 18.84
lmk if this wasn't a good explanation or if you want help on the other problems too
Bob needs to buy a cover for his above-ground pool. The pool is in the shape of a circle and has a diameter of 18 feet. Pool covers cost $0.75 pers square foot how much should bob expect to spend on a pool cover? Wil Mark brainliest
Answer:
13.5 dollar he should he expect
Answer:$ 2054.325
and can i have brainless
Step-by-step explanation:
I will give brainliest for the CORRECT ANSWER ONLY !!!!!
Can someone plsss help?
Answer:
D. [tex]X/Y[/tex]
Step-by-step explanation:
One year ago, Clare was 4 feet 6 inches tall. Now, Clare is 4 feet 10 inches tall. By what percentage did Clare's height increase in the last year?
A tractor costs $ 17,450 and depreciates in value by 12% per year. How much will the tractor be worth after six years?
A.$ 8,103.85
B.$ 12,564.00
C.$ 34,443.21
D.$ 92,136.00
Answer:
Step-by-step explanation:
First it is 12 divided by 100 that =0.12 then 17450*6=104,700 then that times 0.12 =12564 Witch means B
Hope this helped if so please brainliest
The tractor be worth after six years will be $8103.85.
What is the compound interest?Compound interest is when you earn interest on both the money you've saved and the interest you earn.
Here, given that,
A tractor costs $ 17,450 and depreciates in value by 12% per year.
Now, the tractor be worth after six years will be=
$(17450*(1-12/100)^6)
=$8103.85
hence, the tractor be worth after six years will be $8103.85.
To learn more on Compound interest click:
brainly.com/question/29335425
#SPJ2
Approximately 52 percent of all recent births were boys. In a simple random sample of 100 recent births, 49 were boys and 51 were girls. The most likely explanation for the difference between the observed results and the expected results in this case is
Which statement below is true?
A. All squares are rectangles because both are quadrilaterals, have 90 degree angles and the opposite sides are parallel.
B. All trapezoids are rectangles because the opposite sides are parallel.
C. All parallelograms are rhombus' because they have 4 congruent sides and the opposite sides are parallel.
D. All rectangles are trapezoids because all the sides are parallel.
Answer:
its a it's not c I did the test it'd A
Step-by-step explanation:
5. What are 3 true statements you can claim based on
the proportional relationship between the time (hrs)
driving & the distance (mi) driving. (find 3 points
yourself)
Answer: 1 hour is equal to 46 miles 2 hours is 92 miles and 20 hours is 920 miles
Step-by-step explanation:
92/2 = 46 miles
46 x 2 = 92 miles
46 x 20 = 920
lol ok stuck here too
Answer:
axis
Step-by-step explanation:
I don't know explanation but its the answer to you question i think
PLEASE HELP I WILL GIVE BRAINILEST
for A you should take each plotted point and change the sign of the x values. for example (-1,3) should become (1,3) and (-4,4) should become (4,4)
for B take each point and flip the variables and x's sign. (-1,3) should become (3,1)
for C take every x value and subtract 2. (-1,3) should become (-3,3)
for D take each point and flip the variables and y's sign. (-1,3) should become (-3,-1)
The graph contains a system of equations. What two equations are represented in this system? Select all that apply.
Answer:
A D
Step-by-step explanation:
Answer:
D
Step-by-step explanation:
Please help I dont know what to do. I have already done the graph but all I need is x,y box and equation
How do i distribute this into an equivalent expression? -12(-2+4)
Step-by-step explanation:
-12 x -2
-12 x 4
=24+-48
Final answer is -24
Answer:
24-48=-24
Step-by-step explanation:
-12x-2=24
((since two negative numbers multiplied equals a positive))
-12x4=-48
((since a negative times a positive equals a negative))
Soooooooo
24-48=-24
Hope this helps!
For the situation, select the expression or equation that is NOT equivalent to the rest.
Mrs. Jones deducts $3 from each of her 5 children's allowances this week because they didn't finish their chores. They then received a total of $125 in allowance.
Answer choices
A 5(x - 3) = 125
B 5x - 15 = 125
C 5x - 3 = 125
D 5x = 140
Answer:
its awnser a
Step-by-step explanation:
because you need to subtract 3 form x (you dont know what the amount is) then x5 because their is 5 children
help quick please please
Answer:
57.5
formula
A= (a+b/2)h
Tommy made $72 for mowing 9 lawns. How much money would he make for mowing 15 lawns?
Which would neatly fill the gap in the prism shown below? Check all that apply. A prism has a length of 2 and one-half, height of 3, and width of 2. 12 blocks are inside of the prism. 6 blocks each measuring One-fifth times 1 times 1 12 blocks each measuring One-fourth times 1 times 1 6 blocks each measuring One-third times 1 times 1 6 blocks each measuring One-half times 1 times 1 2 blocks each measuring 1 times 1 times 1
Answer:
12 blocks each measuring One-fourth times 1 times 1 and6 blocks each measuring one third times one time 1
Step-by-step explanation:
Answer:
B and D
Step-by-step explanation:
Please answer the question pls & ty
Answer:
37
Step-by-step explanation:
20 + 13 = 33
so 70 - 33 = 37 so the answer is 37
Answer+explanation
so subtract the diffference of 20 and 13 from 70
so first we find the difference and then subtract that from 70
use parenthases so
difference of 20 and 13 is equal to (20-13)
subtract that from 70
70-(20-13)
so you would do the pemdas and get 7 for the inside parethasees then do
70-7=63
please actually give me the answer and I will give brainiest
Answer: 60 times as much I think let me know if I’m wrong so I can fix It
thx
Step-by-step explanation:
What is the volume of the figure below?
Answer:
104m^3
Step-by-step explanation:
we can break this into 2 different rectangular prisms. by adding the 2 volumes, we get the total volume. the V= L x W x H
6x6x2= 72
4x4x2= 32
72+32= 104