Answers
Answer:
2x2-y=1
4-y=1
-y=1-4
-y=-3
y=3
Step-by-step explanation:
Related Questions
NEED HELP A mine extracts 2 tons of ore in an hour. Of the total ore extracted in a day, 4 tons is purchased by the government and more than 10 tons is sold to a mineral extractor. If the mine operates for x hours in a day, what is the simplest inequality that represents the number of hours the mine must operate to meet its obligations?
A.
x > 3
B.
x > 4
C.
x > 5
D.
x > 7
Answers
Answer:
D. x > 7
Step-by-step explanation:
The mine operates x hours per day and extracts 2 tons of ore per hour.
The amount of ore extracted as a function of hours of operation is
2x
The mine must produce 4 tons plus more than 10 tons each day. The mine must produce more than 14 tons in one day. That means that 2x must be greater than 14.
2x > 14
Divide both sides by 2.
x > 7
Answer: D. x > 7
Which sequence is an arithmetic sequence?
-9, -6, -2, 0
5,7,9,15
3,6,12,24
-7, -3, 1, 5
Answers
Answer:
-7, -3, 1, 5 is an arithmetic sequence
A= bh;
A = 28, h = 4
Answers
divide both sides by 4. to leave the variable b alone
Answer: 7=b
represent
[tex] \frac{ - 7}{5} [/tex]
on the number line
Answers
Given:
The number is [tex]-\dfrac{7}{5}[/tex].
To find:
The location of the given number of the number line.
Solution:
We have,
[tex]Number=-\dfrac{7}{5}[/tex]
It can be written as
[tex]Number=-\dfrac{5+2}{5}[/tex]
[tex]Number=-\dfrac{5}{5}-\dfrac{2}{5}[/tex]
[tex]Number=-1-\dfrac{2}{5}[/tex]
It means the number is less than -1 but more than -2. So, the number lies between -2 and -1.
The mixed fraction form of given number is
[tex]Number=-(1+\dfrac{2}{5})[/tex]
[tex]Number=-(1\dfrac{2}{5})[/tex]
[tex]Number=-1\dfrac{2}{5}[/tex]
Divide the number in 5 equal parts between two consecutive integers.
Now each unit represents [tex]\dfrac{1}{5}[/tex].
Since [tex]Number=-1-\dfrac{2}{5}[/tex], therefore, it is 2 units left from -1.
The number line is given below.
When the points plotted on a graph that are joined together produce a straight line, which graph do we obtain
Answers
Answer:
linear graph
Step-by-step explanation:
if the points are coming in a straight line it is linear
What is the y-intercept of the line shown?
−1
0
0.5
1
Answers
Answer:
-1
Step-by-step explanation:
It crosses the y axis at negative 1, the y axis is the vertical line
Solve for x: 5x – 2 = 13
GIVING BRAINLIST!! Please help
Answers
Answer:
3
Step-by-step explanation:
5x - 2 = 13
+2 +2
5x = 15
÷5 ÷5
x = 3
Have a great day <3
Answer:
x=3
Step-by-step explanation:
math work pls help :)
Answers
Answer:
b. side angle side. hope this helps
To rent a bike, Max pays a flat rate plus an hourly rental fee. The graph shows the amount, c dollars, he pays based on the number of hours, t, he uses the bike.
a) Find the vertical intercept of the graph and explain what information it gives about the situation.
b) Find the slope of the graph and explain what information it gives about the situation.
Answers
Answer:
The vertical intercept is 5y. The slope is 1/2
Step-by-step explanation:
Please mark Brainliest
1. Which of the following is equal to 10
A. (6-2)+3 B. (3+11) 4 C. 12-742 D. 6+5-2
2. Which of the following is NOT equal to 2?
A. 7+5-3 B. -84-941 C. 11-5-4 D. 55+2
3. If a=3, what is the value of a-5?
A.-5
B. -2
C, 2
D. 5
4. Which of the following equations is TRUE?
A (1+7)+3=20-9
C. 12-7-5+(7-6)
B. (6+9) 415-4-2
D. 4-5=3-(2+8)
5. Which of the following is equal to 22?
1. 14+15-5
il. (4)(5)+2
1. 54-24-8
iv. 16+5+10-9
A. i only B. li only C. i, ii, in only D. it, 1, iv only
6. What is the value of the algebraic expression x=3y-1? If y=-9
A.27
B. 28
C.-27
D. -28
7. If x=4, what is the value of the expression 5x+17
A 10
B. 21
C. 32
D. 55
8. Let y=10x-2, what is y when x=4?
A. X=3, y=4 B. X=-2, y=4 C. X=-3, y=2 D. X=4, y=-2
9. Which values of x and y will make the expression 4y-2x equal to -16?
A 10
B. 21
C. 32
D. 55
10. Which expression will snow the value 18 if x = 3?
A. 2x + 6 B. 12+
C. 8x4
D. 5x + 3
Answers
Step-by-step explanation:
noneexcept c-2A1+7)+3=20-9il. (4)(5)+2D. -283738D. X=4, y=-2A. 2x + 6Step-by-step explanation:
noneexcept c-2A (1+7)+3=20-9(4)(5)+2-2837389) X=4, y=-2
10) 2x + 6
The value of 23 + 33 = ___. Numerical Answers Expected!
Answers
Answer:
75.76%
Step-by-step explanation:
1. Lawrence's parents pay him a base allowance of $10 per week and $3.20 per hour for extra chores he completes.
Mr. Williams pays Lawrence $7.80 per hour to fix broken washing machines at the laundromat. Which equation
models Lawrence's total weekly income?
Answers
Answer: 1. C and number 2 is A
Step-by-step explanation: Hope this helps
In 3 hours, Jim can walk 14 miles. To find the time
he would take to walk 25 miles, he wrote the proportion 3/14= 25/h.
Explain his error.
Answers
Answer:
He should have used the proportion:
3/14=h/25
h=5.36 hours
Step-by-step explanation:
He should have used the proportion:
3/14=h/25
14h=3(25)
14h=75
h=5.36
Complete or rewrite each equation using the property indicated (algebra).
Property: Associative
Equation: 5 x (3 x 4)
Rewrite 5 x (3 x 4) in associative property
Please explain.
Answers
Answer:
60
Step-by-step explanation:
Ok so,
in PEMDAS the first thing to do is parentheses so 3 times 4 = 12. now it should look like this
5x12 which equals 60
hope this helps! have a good day! please mark brainliest
1. Dolores is on a bridge that is 42 feet above a lake. What is the distance from Dolores to the boat? G
Answers
Answer:
See answer below
Step-by-step explanation:
You are missing data such as the angle of the boat next to Dolores. I found an exercise similar to this, and I'm going to show it here and use the missing data to show you how to do it:
Dolores is on a bridge that is 45 feet above a lake. She sees a boat at a 30 degree angle of depression. What is Dolores' approximate horizontal distance from the boat?
According to that, I will use the angle of 30° to do this, but the distance of 42 feet.
Now, we can see this as a triangle. Dolores is on a bridge 42 feet above a lake, this 42 feet distance should be one side of the triangle (The vertical forming the 90° angle), and the boat that is on the lake, is seen with an angle of 30°. So the distance of the boat, to the spot where dolores is, under the bridge would be the horizontal side.
With this, we have the opposite side (a) and the adyacent side (b) of the triangle, and we have the angle, therefore:
tanα = a/b
Replacing we have:
tan30° = 42/b
b = 42 / tan30°
b = 72.75 feet
Hope this helps
What is the quotient of 3/7 and 14?
Answers
Answer:
Answer down below
Step-by-step explanation:
If its 3/7 divided by 14 it is 3/98
If its 14 divided by 3/7 it is 98/3
Hope this helps
rectangle with length 8 in. and width 6 in.
Answers
Answer:
Area of 48
Step-by-step explanation:
Answer:
Area = 48 in square
Perimeter = 28 inches
Hope that helps!
Step-by-step explanation:
Please help!!! If you can
Answers
Answer:
Im guessing its B. Im sorry of this didnt help.
Step-by-step explanation:
[tex]y = 12000 {(1.04)}^{30}[/tex]
Merton's population = 38920.77012
//
18000 + 30(500) = 33000
Hapville's population = 33000
//
38920.77012 - 33000 = 5920.77012
5920.77012 ---> 6000
The answer is B.
A $50 item is discounted 30%. How much is the discount?
Answers
Answer:
$15
Step-by-step explanation:
Discount = $50 x 30% = $15
Step-by-step explanation:
❁ [tex] \underline{ \underline{ \large{ \tt{ \: G \: I \: V \: E \: N}}}} : [/tex]
Marked price ( MP ) = $ 50Discount % ( Dis % ) = 30 %❁ [tex] \underline{ \underline{ \large{ \tt{ T \: O \: \: F \: I \: N \: D}}}} : [/tex]
Discount amount = ?❁ [tex] \underline{ \underline{ \large{ \tt{S \: O \: L \: U \: T \: I \: O \: N}}}} : [/tex]
[tex] \boxed{ \sf{Discount \: amount = Dis\% \: of \:MP}}[/tex]
Plug the known values :
➝ [tex] \large{ \tt{30\% \: of \: 50}}[/tex]
Convert 30% to fraction. For that divide 30 by 100 and remove the percentage symbol.
➝ [tex] \large{ \tt{ \frac{30}{100} \times 50}}[/tex]
➝ [tex] \large{ \tt{ \bold{ \$ \: 15}}}[/tex]
[tex] \large{ \underline{ \pink {\boxed{ \boxed{ \tt{Our \: final \: answer : \boxed{ \underline{ \bold{ \tt{ \bold{ \$ \: 15}}}}}}}}}}}[/tex]
Hope I helped ! ♡
Have a wonderful day! ツ
# [tex] \underline{ \underbrace{\tt{ \pink{Carry \: on \: learning ! }}}}[/tex]
▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁
Since my last question got reported ill give branliest + 20 points for like 2 mins of your time
Answers
Answer:
the diameter of the semi-circle is 5 in
the area of the shape is 79.63 in squared
Step-by-step explanation:
Which rate does not belong with the other three? 8 pounds for every 2 feet 12 pounds per 3 feet 20 pounds per 4 feet 24 pounds for every 6 feet
Answers
Answer:
20 pounds per 4 feet
all the others have the same proportion, 4 pounds per foot
Step-by-step explanation:
A triangle has side lengths of (6a-3b)(6a−3b) centimeters, (5a+5c)(5a+5c) centimeters, and (8c-b)(8c−b) centimeters. Which expression represents the perimeter, in centimeters, of the triangle?
Answers
Answer:
P = a(61a - 36b + 50c) + 10b² + 89c² - 16bc
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra I
Terms/CoefficientsExpand by FOIL (First Outside Inside Last)FactoringGeometry
Perimeter Formula [Triangle]: P = L₁ + L₂ + L₃
L₁ is one sideL₂ is another sideL₃ is the 3rd sideStep-by-step explanation:
Step 1: Define
L₁ = (6a - 3b)(6a - 3b)
L₂ = (5a + 5c)(5a + 5c)
L₃ = (8c - b)(8c - b)
Step 2: Find Perimeter
Substitute in variables [Perimeter - Triangle]: P = (6a - 3b)² + (5a + 5c)² + (8c - b)²Expand [FOIL]: P = (36a² - 36ab + 9b²) + (25a² + 50ac + 25c²) + (b² - 16bc + 64c²)Combine like terms (a²): P = 61a² - 36ab + 9b² + 50ac + 25c² + b² - 16bc + 64c²Combine like terms (b²): P = 61a² + 10b² - 36ab + 50ac + 25c² - 16bc + 64c²Combine like terms (c²): P = 61a² + 10b² + 89c² - 36ab + 50ac - 16bcRearrange variables: P = 61a² - 36ab + 50ac + 10b² + 89c² - 16bcFactor: P = a(61a - 36b + 50c) + 10b² + 89c² - 16bcIt’s sad when I help people because they don’t do the same thing to so please please please... answer me once :((((((((((((((((((((((((((((((((((((((((((((((
Answers
Answer:
Where is the question????????
Friend
What's your question, my friend?
The area of a billboard sign is represented by (x+12)^2 square feet. Find the product
Answers
= x^2+24x+144
Ms. Brown bought 6 boxes of pencils with a total of 240 pencils. How many pencils were in each box?
Answers
Answer:
40
Step-by-step explanation:
You need to divide 240 by 6 since there are 6 boxes and 240 pencils. If you do that, you will get 40. Hope it helps :)
Answer:
40
Step-by-step explanation:
240/6=40
Can someone help me with my homework
Answers
Answer:
lol i ltterally don't know what this is and im in algebra
Step-by-step explanation:
Answer:
1. Angle EFC and DCF
2. All angles of a parallelogram add up to 360 so 4x-15+127=180 degrees
3. (4) 150 degrees
4. P = 45 degrees
Step-by-step explanation:
Just need answer for both
Answers
Answer:
First one: 12 ft
Second one: 50ft^2
Step-by-step explanation:
Because both triangles are congruent, any value on one triangle is the same one on the other triangle so CBD= 12ft for the perimeter
Second one:
because both triangles are congruent like I stated above, both triangle are congruent.
But in this case we have to find the area of the whole rectangle.
What we do here is multiply 25 by 2
or
add 25+25
our answer is 50ft^2
I need someone to confirm it is this correct?
Answers
Answer:
Yes your answers are correct.
Step-by-step explanation:
Answer:
Yes it is. Good job!
Step-by-step explanation:
Among two supplementary angles the measure of the larger angle is 400 more than the
measure of the smaller. Find their measures.
Answers
9514 1404 393
Answer:
70° and 110°
Step-by-step explanation:
The sum of angles is 180°; their difference is 40°. So, the larger is ...
(180° +40°)/2 = 110°
The smaller is 180° -110° = 70°
The two angles are 70° and 110°.
_____
Above, we have "cut to the chase." If you let the larger be 'a' and 's' and 'd' represent the sum and difference, you have ...
a + (a-d) = s . . . . the sum of the larger and smaller angles
2a = s+d . . . . . . add d
a = (s+d)/2 . . . . the relation we used.
Which equation represents the total cost of a repair by an electrician after x hours?
An electrician charges $90 per hour plus a $50 travelling fee.
Answers
Answer:
y = 90x + 50
Step-by-step explanation:
In this situation, let's define the variable and the constant.
The variable is what changes, so in this case the wage ($90) changes with how many hours the electrician is hired for.
The constant is the number that stays the same, in this case it would be the $50 traveling fee because it remains the same every time.
The equation should be written in this form:
y = mx + b
m = slope (variable)
b = y-intercept (constant)
Therefore, you can write the equation like this:
y = 90x + 50
Hope this helps!!
- Kay :)