Answer:
$28
Step-by-step explanation:
$21 is 3/7
1 part = $7
4x7=28
Can someone give me the answer I need a A in math
can anyone help me? I'm so lost on this question. thanks!!
Answer:
a. -21
b. -16
c. -11
d. -9
Step-by-step explanation:
if x is less than -2, then u have to use the equation 5(x)-1
if x is greater than or equal to -2, then you have to use the equation (x)-9
Answer:
Step-by-step explanation:
This is a ‘piece wise function’ meaning it has different functions depending on the value of the independent variable, x.
So for questions a and b where x<-2 you sub the x value into the top equation, 5x-1.
f(-4)=5(-4)-1=-20-1=-21
f(-3)=5(-3)-1=-15-1=-16
Since the second two x values are not less than -2, you sub the x values into the second equation x-9
f(-2)=-2-9=-11
f(0)=-0-9=-9
Which pairs are like terms in the expression below? Select all that apply.
25y + 15x – 0.2y – 6 + (–2)
Answer:
15x and -0.2y
Step-by-step explanation:
A pound of popcorn is popped for a class party. The popped corn is put into small popcorn boxes that each holds 120 popped kernels. There are 1,600 kernels in a pound of unpopped popcorn. If all the boxes are filled except for the last box, how many boxes are needed, and how many popped kernels are in the last partially filled box?
Answer:
14 ; 40
Step-by-step explanation:
Number of unpopped popcorn = 1600 kernels
Kernel per popped corn = 120
Number of boxes needed :
Number of unpopped / kernel per popped corn
1600 / 120
= 13.3333
Hence, number of boxes needed = 14
Number of popped kernel. In partially filled box :
1600 - (120 * 13)
1600 - 1560
= 40
Guided Practice
Determine whether the relation is a function. Explain why or why not.
{(3, 7), (3, 8), (3, –2), (3, 4), (3, 1)}
A.
No; the domain value 3 corresponds to multiple range values.
B.
Yes; there is no value in the domain that corresponds to more than one value of the range.
C.
No; a function must have multiple domain values.
Answer:
A. it is not a function because there are multiple y-values paired with a single x-value.
Step-by-step explanation:
Select the correct answer. Which equation represents the line that is parallel to y = 3 and passes through (-2,-8)? A. x = -2 B. x = 3 C. y = -8 D. y = 3x − 2
Answer:
C. -8
Step-by-step explanation:
Don't listen to ppl who say it's 3, IT'S NOT. The answer is C. y= -8, because the line has to be parallel so it will be y and D is clearly not correct, so its C.
Answer:
c=-8
Step-by-step explanation:
only answer that makes sense i just took the test
Pls will give brainliest! Asap!
Answer:
it is -11
Step-by-step explanation:
first thing you do is subtract 64 minus 75 and that will be the answer
Answer:
-11
Step-by-step explanation:
64-75=-11
hope i helped :)
Emily drove 328 miles in 8 hours. If she drove at a constant rate, how far did she
travel each hour?
Answer:
41 mph (miles per hour)
Step-by-step explanation:
Find the measure of the indicated angle
Answer:
36°
Step-by-step explanation:
(6x)° + 54° = 90°
(complementary angles)
(6x)° = 90°- 54°
(6x)° = 36°
Write with a single exponent
b. 1/10•1/10•1/10•1/10•1/10•1/10•1/10=
Answer:
1 x 10^-7
Step-by-step explanation:
Answer:
l;komjni
Step-by-step explanation:
2y+3=5x-18. make x the subject
[tex]x = \frac{2y + 21}{5} [/tex]
Step-by-step explanation:
1) Add 18 to both sides.
[tex]2y + 3 + 18 = 5x[/tex]
2) Simplify 2y + 3 + 18 to 2y + 21.
[tex]2y + 21 = 5x[/tex]
3) Divide both sides by 5.
[tex] \frac{2y + 21}{5} [/tex]
4) Switch sides.
[tex]x = \frac{2y + 21}{5} [/tex]
Hope it helps.
sorry if its wrong.
The equation 2y + 3 = 5x - 18 can be rearranged to make x the subject as x = (2y + 21) / 5.To make x the subject of the equation 2y + 3 = 5x - 18, we need to isolate x on one side of the equation.
Let's rearrange the equation step by step:
2y + 3 = 5x - 18
First, let's move the constant term (-18) to the other side by adding 18 to both sides:
2y + 3 + 18 = 5x
2y + 21 = 5x
Next, we can divide both sides by 5 to isolate x:
(2y + 21) / 5 = x
Therefore, the equation 2y + 3 = 5x - 18 can be rearranged to make x the subject as x = (2y + 21) / 5.
To know more about equation :
https://brainly.com/question/10724260
#SPJ2
Which is the better deal?
6 cans of soda for $3.60
4 cans of soda for $2.36
10 cans of soda for $5.50
Answer:
The better deal is 10 cans of soda for $5.50
Step-by-step explanation:
6 cans of soda for $3.60 means each can of soda is worth .60 cents4 cans of soda for $2.36 means each can of soda is worth .59 cents 10 cans of soda for $5.50 means each can of soda is worth .55 centsTherefore, 10 cans of soda for $5.50 is the best deal because you are getting the most cans of soda for the cheapest amount of money.
Hope this helped!
Answer:
10 cans for $5.50
Step-by-step explanation:
3.60/6= $0.60 per can
2.36/4= $0.59 per can
5.50/10= $0.55 per can
Lisa goes out to eat with her family and spends 42.50. she gives the waiter 15% tip .how much money does she spend in total ?
Answer:
Step-by-step explanation:
1.15×$42.50 = $48.875 ≅ $48.88
Answer:
$48.88
Step-by-step explanation:
42.50 increase 15% =
42.50 × (1 + 15%) = 42.50 × (1 + 0.15) = 48.875
Sharon is buying candy. she buys 5 type on the menu if she splits the price equality with four friends how mich do they each pay
Answer:
D. 0.65
Step-by-step explanation:
0.05 x 5=0.25
0.01 x 5=0.05
0.07 x 5=0.35
0.25+0.05+0.35=0.65
they all must pay 0.65 each
Answer:
0.65
Step-by-step explanation:
pLeAsE do this!! In five minutes it's due.
The area of a rectangular garden is 21x²-8x-4. Factor completely to find the dimensions of the box.(So find the length and width.)
Answer:
It's (7x+2)(3x−2)
Step-by-step explanation:
Given x || y.
∠6 and ∠8 are _________ angles.
complementary
corresponding
supplementary
vertical
Answer:
angle 6 and angle 8 are vertical angles
Step-by-step explanation:
The angles opposite to each other when two lines cross are called vertical angles. In this case, angle 6 and angle 8 are those angles.
For each parallelogram below, find the value of x.
Will give brainliest for full answer
Answer:
x = 3 and x = 8
Step-by-step explanation:
The opposite sides of a parallelogram are congruent, then
WA = DR , substitute values
12x - 9 = 5x + 12 ( subtract 5x from both sides )
7x - 9 = 12 ( add 9 to both sides )
7x = 21 ( divide both sides by 7 )
x = 3
------------------------------------------------------
The diagonals of a parallelogram bisect each other, then
QS = [tex]\frac{1}{2}[/tex] QT , that is
8x - 14 = [tex]\frac{1}{2}[/tex] × 100 = 50 ( add 14 to both sides )
8x = 64 ( divide both sides by 8 )
x = 8
Answer:
x = 3 and x = 8
Step-by-step explanation:
Hope this will help
Please triple check
Answer:
Step-by-step explanation:
6 children speak english out of 20 children
P(E)=6/20
P(E)=3/10
P(E)=0.3
The volume of a Soap cake is 160 cm 3 . Its length and width are 10cm and 5 cm. Find its height.
Answer:
h = 3.2 cm
Step-by-step explanation:
[tex]h=\frac{Volume}{l * w}\\\\=\frac{160}{10*5}\\\\=\frac{16}{5}\\\\[/tex]
= 3.2 cm
Draw graph of straight lines to find approximate solution to these simultaneous equations . y = 3x + 7 and 2y + x = 2
Answer:
(-1.714, 1.857)
Step-by-step explanation:
Here, we want to find the approximate solution to the system of linear equations
We start by plotting the graph of the lines
We have the plot as shown below;
the red line represents the first equation while the blue line represents the second equation
We have the solution as the point at which the two lines meet
The solution to this is;
(-1.714, 1.857)
A set of middle school student heights are normally distributed with a mean of 150 centimeters and a
standard deviation of 20 centimeters. Let X = the height of a randomly selected student from this set.
Find P(130 < x < 150).
You may round your answer to two decimal places.
Answer:
.34
Step-by-step explanation:
Khan
The required value of probability P(130< x < 150) is 0.34.
What is the Z -a score?
A Z-score is stated as the fractional model of data point to the mean using standard deviations.
here, z = x - μ / σ
where, μ = mean and σ = standard deviation
Here,
From the quesiton put value in z score formula,
z = 130 - 150 / 20
z = -1
P (z < - 1) = P(x<130) = 0.15866
P (x > 130) = 0.84134
Now,
P(130< x < 150) = 0.5 - P(x<130)
P(130< x < 150) = 0.5 - 0.15866 = 0.34134
Thus, the required value of P(130< x < 150) is 0.34.
Learn more about the z-score here:
brainly.com/question/13793746
#SPJ5
Shopping While shopping for clothes, Tracy spent $27 less than 2 times what Jaclyn spent.
Tracy spent $21. Write and solve an equation to find how much Jaclyn spent. Let x represent how
much Jaclyn spent.
Answer:X = Daniel spent
Y = Tracy spent
Tracy spent = Y
$38 less than = -38
3 times Daniel spent = 3X
Put it all together
Y=3X-38
Solve the equation r+3 = 3(r-5)
Answer:
r-9
Step-by-step explanation:
Isolate the variable by dividing each side by factors that don't contain the variable
brainleist?
DeepSea Challenger’s descent was a change in depth of (-4) feet per second.We can use the equation y = -4x to model this relationship, where y is the depth (-35,814 ft) and x is the time in seconds that have passed. How many seconds does this model suggest it would take for DeepSea Challenger to reach the bottom?(round to the nearest tenth)
* Explain how you got your answer.
Answer:
Step-by-step explanation:
x = -35,814 ft ⋅ (1 sec)/(-4 ft) = 8,953.5 sec
The required model suggests that it would take approximately 8957.5 seconds for DeepSea Challenger to reach the bottom.
What is proportionality?proportionality is defined as between two or more sets of values, and how these values are related to each other in the sense are they directly proportional or inversely proportional to each other.
To find the time it takes for the DeepSea Challenger to reach the bottom, we need to find the value of x when y = -35,814 ft.
We can substitute the desired depth into the equation y = -4x:
-35,814 = -4x
35,814 = 4x
x = 35,814 / 4
x = 8953.5 seconds
So, the model suggests that it would take approximately 8957.5 seconds for DeepSea Challenger to reach the bottom.
Learn more about proportionality here: https://brainly.com/question/22620356
#SPJ5
Can anyone round the number 277235.2251 for me please. Asap please!!!
Answer:
277,235.23
Step-by-step explanation:
You have to round to the nearest 0.01 or you can call it the Hundredths Place.
What is the image of 6, -7 after dilation by scale factor of 3 centered at the origin
Answer:
(18,−21)
Step-by-step explanation:
Dilation: multiply each coordinate
(x,y)\rightarrow (3x,3y)
(x,y)→(3x,3y)
Dilations multiply by scale factor
(\color{red}{6},\color{blue}{-7}) \rightarrow (3\cdot \color{red}{6},3\cdot \color{blue}{-7})=\mathbf{(18,-21)}
(6,−7)→(3⋅6,3⋅−7)=(18,−21)
Answer:
18,-21
Step-by-step explanation:
I hope this helps
Right triangle XYZ is shown. Y (2,6) (1, 2) 6 х 7 Z Rounded to the nearest hundredth of a unit, what is the length of the hypotenuse?
PLEASE HELP ASK
Answer:
8.12
Step-by-step explanation:
We obtain the distance between x and y
d = sqrt[(x2 - x1)² + (y2 - y1)²]
d = sqrt[(1 - 2)² + (2 - 6)²]
d = sqrt[1 + 16)
d = sqrt(17)
d² = 17
From Pythagoras rule;
Hypotenus = sqrt(Adjacent² + opposite²)
Hence,
Hypotenus = sqrt(17 + 7²)
Hypotenus = sqrt(17+ 49)
Hypotenus = sqrt(66)
Hypotenus = 8.124
Hypotenus = 8.12
Tom is considering opening a pool cleaning business as a summer job. He wants to determine the percentage of people in his town that own a pool. Which is the best group of people for Tom to survey?
A
150 people who are members of the swim team
B
150 people randomly selected from customers at a local pool supply store
C
150 people randomly selected from the town telephone book
D
150 people who completed and returned a survey by mail
Answer:
D
Step-by-step explanation:
4 times what is closest to 26 without going over
Answer:
4*6=24 answer:6
any other number would be less or more
Step-by-step explanation:
Answer:
6
Step-by-step explanation:
4 x 6 is 24 and 4 x 7 is 28. 26 is between 24 and 28, so got to 24 since that is less than 26. 4 x 6 gets you 24, so 6 is your answer.
Hope it helps!
PLZ HELP ASAP ASAP!!!!
==============================================================
Explanation:
The value of k determines the slope, or rate of change, of how fast the balloon is climbing per second.
For example, if k = 5, then that means the balloon is going upward at 5 feet per second (equivalent to roughly 3.41 mph)
If k = 5, then y = kt becomes y = 5t. Note how we have the following
t = 0 leads to y = 0t = 1 leads to y = 5t = 2 leads to y = 10t = 3 leads to y = 15and so on. Each time t goes up by 1, d goes up by 5. This is one way to see how the speed is 5/1 = 5 ft per second.
