Answer:
21
Step-by-step explanation:
What is the rate of change of the following equation? 2y + x = -2
Answer:
-1/2
Step-by-step explanation:
The general rate of change can be found by using the difference quotient formula. To find the average rate of change over an interval, enter a function with an interval: f(x)=x2,[2,3]f(x)=x2,[2,3]
−12-12
HELP HELP HELP HELP HELP HELP PLEASE I BEG U
Answer:
-3.2
Step-by-step explanation:
Do you have to work this out on paper because I just used a calculator but just add 3.1 + -6.3.
HELP ME PLEASE! Determine the slope of the line represented by the graph below.
m= 2
m= -2
m = 1/2
m= -1/2
find x. use picture for question
(62 points) Jim makes $5 an hour at the surf shop. His boss gives him a one time bonus of $50. Sarah makes $8 an hour at the clothes store. Her boss gives her a one time bonus of $14. After how many hours will their paychecks be the same?
Answer:
12 hours
Step-by-step explanation:
So we know that Jim makes $5 an hour and was given a one time bonus of $50. Using the information given, we can make the expression:
5h + 50
to represent how much Jim makes in h hours.
Now we also know that Sarah makes $8 an hour and was given a one time bonus of $14. Using this information, we can make the expression:
8h + 14
to represent how much Sarah makes in h hours.
Now to find how many hours it will take for their paychecks to be the same, we have to set the two expressions equal to each other and solve for h:
8h + 14 = 5h + 50
Now solve for h. Subtract 5h from both sides.
3h + 14 = 50
Subtract 14 from both sides.
3h = 36
Divide both sides by 3.
h = 12
So it will take 12 hours for their paychecks to be the same.
I hope you find my answer and explanation to be helpful. Happy studying.
1/3p+1/2p+7=7/6p+5+4
Answer:
p=−6
Step-by-step explanation:
Let's solve your equation step-by-step.
1/3p+1/2p+7=7/6p+5+4
Step 1: Simplify both sides of the equation.
p)+(5+4)(Combine Like Terms)
Step 2: Subtract 7/6p from both sides.
Step 3: Subtract 7 from both sides.
Step 4: Multiply both sides by 3/(-1).
p=−6
Answer:
Step-by-step explanation:
P=6
Sam counted his heartbeats while resting. His heart beat 220 times in 4 minutes. Sam's heart beat at the same rate for the 4 minutes.
The equation for the number of beats per minute is 55 beats per minute
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 total number of beats be = A
Now , the value of A = 220 beats
The total time required for Sam to have 220 beats = 4 minutes
So , the number of beats of Sam in 1 minutes is calculated by
The equation will be
The number of beats of Sam in 1 minutes is = total number of beats / total time required for Sam to have 220 beats
The number of beats of Sam in 1 minute is = 220 / 4
The number of beats of Sam in 1 minute is = 55 beats per minute
Therefore , Sam would have 55 beats every minute or 55 beats per minute
And for the period of 4 minutes , Sam would have
Number of beats for 4 minutes = number of beats of Sam in 1 minute x 4
Number of beats for 4 minutes = 55 x 4
Number of beats for 4 minutes = 220 beats in 4 minutes
Hence , The equation for the number of beats per minute is 55 beats per minute
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Write the equation 5x=2y+10 in the slope-intercept form and find the slope of a line parallel to it. PLZ HURRY!
Answer: Y=-5/2x+5(Idk i'm doing it off of my head)
Answer:
y=5/2x -5 slope is 5/2
Step-by-step explanation:
parallel lines have the same slope
A school has a square playground with each side
measuring 120 feet. A scale drawing of the playground uses the scale 1/2 inch equals 12 feet. What is the length of a side of the playground on
this scale drawing?
is this relation a function? justify your answer.
please help!
ayo the answer is c.
(i woulda just said tht it doesn't pass the vlt lma.o).
sorry if you can’t see clearly BUT PLEASE HELP ME IM TIMED AND MY TEACHER IS GOING TO SUBMIT IT
f students receive 50% profit of $20 for selling one chocolate box in a fundraiser, how much money would they make if they sold 100 products? *
Answer:
the answer is 50$ hope it helps :)
Step-by-step explanation:
Is the answer yes or no that’s all I want to know #Respectfully
Answer:
What your question?
Step-by-step explanation:
Answer:
I think the question is yes
12x+8
8x+12
р
Find the value of x using properties of parallel lines.
A) 1
B) 8
C) 3.5
D) 5
Evaluate each using the values given. x+z+y; use x = 4, y = 4, and z = 6
Answer:
14
Step-by-step explanation:
x + z + y = ?
First, substitute in x for 4, y for 4, and z for 6
4 + 6 + 4
Add 4 and 6
10 + 4
Add 10 and 4 to get your answer:
14
Answer:
X + y + z= 4 + 4 + 6= 14 . The Answer is 14. I hoped this helpful for you . If you like this answer then mark this answer as BRAINLIEST answer....Thank you ☺️☺️
1 point
What is 3V45 expressed in simplest radical form?
a. 615
b. 2715
c. 9/5
d. 515
b
Ο Ο Ο Ο
d
Answer:
The simplest radical form is [tex]9\sqrt{5}[/tex] ⇒ (c)
Step-by-step explanation:
To simplify any square root;
Factorize the number under the root using prime numbersTake out the root any number repeated twice as one numberExamples:
1. Simplify [tex]\sqrt{8}[/tex]
factorize 8 using prime numbers
8 = 2 × 2 × 2, then [tex]\sqrt{8}=\sqrt{(2)(2)(2)}[/tex]
Take two of 2 out the root, then [tex]\sqrt{8}=2\sqrt{2}[/tex]
2. Simplify [tex]\sqrt{18}[/tex]
factorize 18 using prime numbers
18 = 2 × 3 × 3, then [tex]\sqrt{18}=\sqrt{(2)(3)(3)}[/tex]
Take the two 3 out the root, then [tex]\sqrt{18}=3\sqrt{2}[/tex]
Let us simplify [tex]3\sqrt{45}[/tex]
∵ 45 = 3 × 3 × 5
∴ [tex]3\sqrt{45}=3\sqrt{(3)(3)(5)}[/tex]
→ Take the two 3 out by one 3
∴ [tex]3\sqrt{45}=3(3)\sqrt{5}[/tex]
→ Multiply the numbers out the root
∴ [tex]3\sqrt{45}=9\sqrt{5}[/tex]
∴ The simplest radical form is [tex]9\sqrt{5}[/tex]
5 liters=______ hectoliter?
Help?
Answer:
.05 hectoliters
Step-by-step explanation:
100 liters = 1 hectoliter
5 liters * 1 hectoliter/ 100 liters = 5/100 hectoliters
Simplify
.05 hectoliters
5 liters= 0.05 hectoliter
What is the intersection of the sets C = {5, 7, 10, 13, 19) and D = {3, 9, 14, 15}?
O null set
O (5, 7, 9, 10, 13, 14, 15, 19}
O {5, 9, 14)
O {3, 19)
Answer:
Null/empty set
Step-by-step explanation:
The answer is null because neither Set C and D share the same numbers
A square board was attached to a wall. The board was divided by four squares and each square was colored either black or white. How many possible combinations of such coloring are there, if we cannot rotate the given board? PLEASE HELP QUICK! IM NEW AND I NEED ANSWERES! I HOPE BRAINLY DEOS NOT FAIL ME!
Answer:
24 combinations
Step-by-step explanation:
For this problem, you use factorials. Factorials are when you multiply every number below it except zero. So like the factorial of 3 or 3! is 3*2*1 is 6.
Factorials are used to figure out how many combinations there are of something. So for you, we have 4 different quadrants so we write that as 4! (! is the sign for factorials.)
By the way, welcome to brainly.
The owner of an art supply store buys tubes of magenta oil paint for $10.80 and marks up the cost by 10% to determine the retail price. The tubes of paint do not sell well, so the owner marks down the retail price by 20%.
To the nearest cent, what is the marked-down price of a tube of magenta oil paint?
Answer:
10.80 - 20 percent equals 8.64
Step-by-step explanation:
Answer: it’s 8.19
Step-by-step explanation:
Un triángulo escaleno siempre es
obtusángulo.
Answer:
si
Step-by-step explanation:
lo aprendi el ano pasado si esta incorrecto me disculpo
what is 5 over 8 divided by 4
5/8 divided 4
Answer:
5/32 in fraction form
0.1563 in decimal form.
Step-by-step explanation:
step 1 Address formula, input parameters & values.
Input parameters & values:
5/8 & 4
5/8 ÷ 4= ?
step 2 Multiply 5/8 with reciprocal of 4
=5/8 x1/ 4 =5/32
Thus, 5/32 is equivalent fraction for 5/8 divided by 4
Answer:
0.15625
Step-by-step explanation:
Reba is collecting pledges for a walk-a-thon. Her mother has pledged a flat donation of $8, and her grandmother has pledged $2 per mile. If Reba walks a certain distance, the two donors will end up owing the same amount. What is that distance? How much will each donor owe?
Answer:
4 miles ,each donor will owe $8 hope this helped!
Step-by-step explanation:
2.4(x - 6) = -5.6x + 8
Let's solve your equation step-by-step
2.4(x-6)=-5.6x+8
Step 1: simplify both sides of the equation
2.4(x-6)=-5.6x+8
(2.4)(x)+(2.4)(-6)=-5.6x+8 (distribute)
2.4x+-14.4=-5.6x+8
2.4x-14.4=5.6x+8
Step 2: Add 5.6x to both sides.
2.4x-14.4+5.6x=-5.6x+8+5.6x
8x-14.4=8
Step 3:Add 14.4 to both sides
8x-14.4+14.4=8+14.4
8x=22.4
Step 4 : Divide both sides by 8
8x/8 =22.4/8
Answer : x=2.8
Please help let me know if these are right.
Answer:
Every one except A is correct. it is 7/8 not 8/7
Heather purchased a prepaid phone card for $15 . Long distance calls cost 16 cents a minute using this card. Heather used her card only once to make a long distance call. If the remaining credit on her card is $12.76 , how many minutes did her call last?
Answer:
14 minutes
Step-by-step explanation:
In order to get the answer, we have to subtract the original amount of money on the phone card by the amount left over after the call:
15 - 12.76 = 2.24
Then, we divide this number by 0.16:
2.24 / 0.16 = 14
So, Heather's call lasted 14 minutes
Hope this helps :)
The table represents a proportional relationship.
x y
11 2
22 4
33 6
The graph represents another proportional relationship.
(Picture)
Which equation represents the lower unit rate of these two relationships?
A. y=2/9x
B. y=1/4x
C. y=1/5x
D. y=2/11
Answer:
the answer is d y=2
_ x
11
Step-by-step explanation:
I got it right on the test
2/11 is lower than 2/9, therefore the equation that will represent a lower unit rate (k) of both relationships given is: D. y=2/11
A proportional relationship between variable y and x can be expressed as:
y = kx
Where,k is the unit rate/constant of proportionality.
Therefore,k = y/x
Thus, find the equation for the table and the graph respectively in order to determine which equation represents the lower unit rate.
Equation for the table using a pair of coordinates, say (11, 2):
Find, unit rate (k) by substituting x = 11, and y = 2 into k = y/x
Thus:k = 2/11
Plug in the value of k = 2/11 into y = kx
The equation for the table is:
y = 2/11x
Equation for the graph using a point on the line, say (9, 2):
Find, unit rate (k) by substituting x = 9, and y = 2 into k = y/x
Thus:k = 2/9
Plug in the value of k = 2/9 into y = kx
The equation for the table is:y = 2/9x
In conclusion, 2/11 is lower than 2/9, therefore the equation that will represent a lower unit rate (k) of both relationships given is: D. y=2/11
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What is the equation of this line?
Answer:
y=4/3x‒4
Step-by-step explanation:
first list the pairs as the following
{(3,0),(0,‒4)}
&prove your answer by substitute the pairs instead of x&y
when we substitute the pairs (3,0)
y=4/3x‒4
0=4/3(3)‒4
0=4‒4
0=0
when we substitute the pairs (0,‒4)
y=4/3x‒4
‒4=4/3(0)‒4
‒4=0-4
‒4=‒4
so i hope my answer helps you
A recipe says to use 3 cups of flour to make 48 cookies. What is the constant of proportionality that relates the number of cookies made, y , to the number of cups of flour used, x
Answer:
1 cup of flour(x)=16 cookies(y)
Step-by-step explanation:
3 cups of flour=48 cookies
3/3=48/3
1 cup of flour=16 cookies
A circular pool has an area of approximately 154 square feet. To the nearest foot, how much fencing is needed to completely surround the pool?
Given parameters:
Area of pool = 154ft²
Unknown:
The circumference or perimeter of the pool = ?
Solution:
The amount of fencing needed for the pool is the same as the circumference of the pool or the perimeter of the pool.
To solve this problem, we need to find the radius from the given area.
Area of a circle = π r²
154 = π r²
r² = [tex]\frac{154}{3.142}[/tex] = 49
r = 7ft
Now the circumference of a circle = 2 π r
= 2 x π x 7
= 44ft
The circumference of the circle is 44ft