No se solo quiero los puntos
3y - 7 + 5 - 4y + 9y
Answer:
8y-2
Step-by-step explanation:
Matthew wanted a laptop for his birthday. He
found one on sale for 15% off the original price.
If the original price was $1,200, how much did
the laptop cost before taxes were applied?
Answer:
$1020
Step-by-step explanation:
0.155x1200
1200-180=
1020
Which dot plot matches the tally chart below?
A 2-column table with 5 rows. Column 1 is labeled Pull-ups Completed in one minute with entries 1, 2, 3, 4, 5. Column 2 is labeled Tally with entries 2, 5, 3, 1, 2.
A dot plot titled Pull-ups completed in one minute goes from 0 to 6. 0 has 0 dots, 1 has 2 dots, 2 has 5 dots, 3 has 3 dots, 4 has 1 dot, 5 has 2 dots, and 6 has 0 dots.
A dot plot titled Pull-ups completed in one minute goes from 0 to 6. 0 has 0 dots, 1 has 2 dots, 2 has 2 dots, 3 has 3 dots, 4 has 1 dot, 5 has 2 dots, and 6 has 0 dots.
A dot plot titled Pull-ups completed in one minute goes from 0 to 5. 0 has 0 dots, 1 has 2 dots, 2 has 5 dots, 3 has 3 dots, 4 has 1 dot, 5 has 0 dots.
A dot plot titled Pull-ups completed in one minute goes from 0 to 6. 0 has 0 dots, 1 has 2 dots, 2 has 5 dots, 3 has 3 dots, 4 has 1 dot, 5 has 1 dot, and 6 has 0 dots.
Answer:
option 1
Step-by-step explanation:
Answer: 1st one
Step-by-step explanation:
Nine times a number is 30 more than three times that number. Find the number
Answer:
From this question, we can write
Let n be the number.
9n=3n+30
6n=30
n=5
We find that the number is 30.
Hi there!
it would be 10.. if your asking for what multiply by 9 and 3 more than the number.
1.Find common multiply:
[tex]9,18,27,36,45,54,63,72,81,90,99[/tex]
[tex]30,60,90,120[/tex]
2.Find what nine can multiply to and 30 can also:
[tex]=90[/tex]
3.Divide two terms:
[tex]90*9=10[/tex]
This means, the number would be 10.
1.2m=8.4 inverse operation
Answer:
m = 7
Step-by-step explanation:
1.2m = 8.4
m is being multiplied by 1.2
to get m alone, we do the inverse operation to multiplication which is division.
Divide both sides by 1.2
1.2m/1.2 = 8.4/1.2
m = 7
Answer:
m=7
Step-by-step explanation:
8.4/1.2=7
Please anyone help me on this
Step-by-step explanation:
iiiiii wiiish iit iis correeeeect
Please answer for instant brainliest .
Answer:
Its the last one
Step-by-step explanation:
math math math ill cry
Answer:
yes
Step-by-step explanation:
Answer:
yes
Step-by-step explanation:
w-13=27
[tex]w - 13 = 27[/tex]
how do i do this?
Last tuesday a doughnuts store sold 20 bavarian cream, 60 glazed, 15 chocolate
and 25 rainbow sprinkles doughnuts. What is the ratio of bavarian cream to
chocolate doughnuts?
Answer:
Step-by-step explanation:
b:g:c:r = 20:60:15:25 = 4:12:3:5
b:c = 4:3
Can someone create and solve a multiplication problem to show that the product of a whole number and a fraction will be equal to the whole number?
Answer:
12
Step-by-step explanation:
11. In another country, a road sign reads "80
kilometers to the next gas station". How
far is that distance to the nearest mile?
A 40 mi
C 62 mi
B 50 mi
D 98 mi
please help quick!
Sue played the same computer game.
She won 12 of the games she played, and so she estimated the probability of winning each game to be 0.4
How many games did Sue play?
Solve for u.
–8u-16 =-6(u-5)
Simplify your answer as much as possible.
Answer:
-8u-16=-6u+30
-8u+6u=30+16
-2u=46
u=-46/2
u=-23
Step-by-step explanation:
Answer:
7
Step-by-step explanation:
First multiply 6 by u and 7 to get 6u+7
next add -8u + 6u and get -2u
then subtract 42 from both sides of the equation (28-42)
finally divide -2u from both sides of the equation and get 7
John removed 64 fish from his pond over a period of 8 days. He removed the same number of fish each day. What was the change in the number of fish in the pond each day?
2(4x - 2) = 8(x - 7)
Answer:
no solution
Step-by-step explanation:
2(4x - 2) = 8(x - 7)
8x - 4 = 8x - 56
0x = -52
no solution
Answer:
2(4x-2) = 8(x-7)
Distribute on both sides
2(4x)-2(2) = 8(x)-(7)(8)
Simplify
8x - 4 = 8x - 56
Subtract 8x from both sides to balance the equation.
-4 = -56
This is not equal.
Therefore the answer is no solution
A bowling alley has a one-time charge of $2.50 to rent a pair of shoes and a charge of $2.00 for each game bowled. The function f (x)
represents the total cost to bowl x games.
Which equation represents f (x)?
O A f(x) = 2.5x + 2
O B. f (x) = 2x + 2.5
O c f(x) = (2.5 + 2)x
OD. f (x) = (2.5 - 2)x
Answer:
B. f (x) = 2x + 2.5
Step-by-step explanation:
Linear function:
A linear function has the following format:
[tex]y = mx + b[/tex]
In which m is the value that y changes by when x increases by 1, and b is the flat fee.
A bowling alley has a one-time charge of $2.50 to rent a pair of shoes and a charge of $2.00 for each game bowled.
This means that [tex]m = 2, b = 2.50[/tex]
So
[tex]f(x) = 2x + 2.5[/tex]
And the correct answer is given by option b;
Work out
107.2% of £85.12
Give your answer rounded to 2 DP.
please help me with these two questions!! show work too!
Answer:
x 37 y 30
Step-by-step explanation:
hopes it helps yo
Select the correct answer from each drop-down menu.
The simplified form of [look at the picture] is ____ (-pi, pi, 2 times pi). It’s estimated value is ____ (3.14, 6.28, -3.14)
Sorry if this was confusing the read! One of the answers in the parentheses are supposed to fill in the blank!
Answer:
The answer is pi and the estimate is 3.14
Step-by-step explanation:
Just took the test for plato and Edmentum users only
The estimated value of the expression is π which is approximately equal to the number 3.14.
What is simplification?Simplification is to make something easier to do or understand and to make something less complicated.
The expression is given below.
[tex]\Rightarrow \dfrac{5\sqrt2 \pi - 4\sqrt2 \pi}{\sqrt2}[/tex]
Taking √2and π common, then we have
[tex]\rightarrow \dfrac{(5 - 4)\sqrt2 \pi}{\sqrt2}\\\\\\\rightarrow \dfrac{\sqrt2 \pi}{\sqrt2}\\\\\\\rightarrow \pi \approx 3.14[/tex]
The value of the expression is 3.14.
More about the simplification link is given below.
https://brainly.com/question/12616840
#SPJ2
For the given hypothesis test, determine the probability of a Type II error or the power, as specified. A hypothesis test is to be performed to determine whether the mean waiting time during peak hours for customers in a grocery store has increased from the previous mean waiting time of 8.3 minutes. Preliminary data analyses indicate that it is reasonable to apply a -test. The hypotheses are H 0: μ = 8.3 H1: >8.3 The population standard deviation is 3.8 minutes. The sample size is 50. The significance level is 0.05. Find the probability of a Type II error if in fact the mean waiting timeu, is 9.8 minutes. A. 0.125 B. 0.05 C. 0.875 D. 0.95
Answer:
the probability of a Type II error if in fact the mean waiting time u, is 9.8 minutes is 0.1251
Option A) is the correct answer.
Step-by-step explanation:
Given the data in the question;
we know that a type 11 error occur when a null hypothesis is false and we fail to reject it.
as in it in the question;
obtained mean is 9.8 which is obviously not equal to 8.3
But still we fail to reject the null hypothesis says mean is 8.3
Hence we have to find the probability of type 11 error
given that; it is right tailed and o.5, it corresponds to 1.645
so
z is equal to 1.645
z = (x-μ)/[tex]\frac{S}{\sqrt{n} }[/tex]
where our standard deviation s = 3.8
sample size n = 50
mean μ = 8.3
we substitute
1.645 = (x - 8.3)/[tex]\frac{3.8}{\sqrt{50} }[/tex]
1.645 = (x - 8.3) / 0.5374
0.884023 = x - 8.3
x = 0.884023 + 8.3
x = 9.18402
so, by general rule we will fail to reject the null hypothesis when we will get the z value less than 1.645
As we reject the null hypothesis for right tailed test when the obtained test statistics is greater than the critical value
so, we will fail to reject the null hypothesis as long as we get the sample mean less than 9.18402
Now, for mean 9.8 and standard deviation 3.8 and sample size 50
Z = (9.18402 - 9.8)/[tex]\frac{3.8}{\sqrt{50} }[/tex]
Z = -0.61598 / 0.5374
Z = - 1.1462 ≈ - 1.15
from the z-score table;
P(z<-1.15) = 0.1251
Therefore, the probability of a Type II error if in fact the mean waiting time u, is 9.8 minutes is 0.1251
Option A) is the correct answer.
–5(–x + 4)
need help
Answer:
5x−20
Step-by-step explanation:
−5(−x+4)
=(−5)(−x+4)
=(−5)(−x)+(−5)(4)
=5x−20
Solve 5|x – 4| ≥ –10
Question 20 options:
A)
No solution
B)
2 ≤ x ≤ 6
C)
x ≤ 2 or x ≥ 6
D)
All real numbers
Answer:
This question doesn't have a solution
Step-by-step explanation:
help please will give a thanks !!
Answer:
7/9, -0.3, 11/2
Step-by-step explanation:
Answer:
7/9, -0.3, 11/2
Step-by-step explanation:
Geometry
please help asap!
Step-by-step explanation:
AB = 3
by similaritiy criterion
CE/ CB= ED/AB
4/6= 2/AB
AB = 3
plz mark my answer as brainlist plzzzz also vote me ..if you find it useful.
what is the quotient of 6,726 and 19
Answer:
354
Step-by-step explanation:
I'm smart............
The rectangle has an area of x^2-9 square meters and a width of x-3 meters
The complex numbers u and v are given by u = 1 + 2sqrt3i and v = 3 + 2i. In an Argand diagram,
u and v are represented by the points A and B. A third point C lies in the first quadrant and is
such that BC = 2AB and angle ABC = 90Å. Find the complex number z represented by C, giving
your answer in the form x + iy, where x and y are real and exact
What is the reciprocal of 1 3/13
Answer:
13/16
Step-by-step explanation:
First, write 1 3/13 as a fraction.
1 3/13 = 1 + 3/13 = 13/13 + 3/13 = 16/13
The reciprocal of 16/13 is 13/16.
Answer: 13/16
functions please helpp
Answer:
Functions:
3. The chart with arrows
4. The graph
Not Functions:
1. (1,1), (2,2), (3,3), (1,4)
2. (1,17), (0,16), (0,15), (-2,17)
Step-by-step explanation:
Functions do not have repeating domains (x-coordinates).
Hope it helps!