Answer:
twenty-three and six tenths
Step-by-step explanation:
twenty-three and six tenths. or, simpler: twenty-three point six
Sarah is trying to run a certain number of miles by the end of the month. If Sarah is 80% of the way to achieving her goal and she has already run 40 miles, how many miles is she trying to run by the end of the month?
Answer: 50 miles
Step-by-step explanation:
Let the miles that she is trying to run by the end of the month be denoted by x.
Since she is 80% of the way to achieving her goal and she has already run 40 miles. This can be expressed as:
80% of x = 40
80/100 × x = 40
0.8x = 40
x = 40/0.8
x = 50
The miles that she is trying to run by the end of the month is 50 miles.
How much felt is used to make the flag?
Answer:
i can't see it
Step-by-step explanation:
it's blury.
The perimeter of a rectangle is 208 inches. The ratio
of its length to its width is 5:3. What are the
dimensions of this rectangle?
A. 60 in by 44 in
B. 65 in by 39 in
C. 68 in by 36 in
D. 72 in by 32 in
Answer:
65 in and 39 in respectively
Step-by-step explanation:
Let r be the common ratio; when we multiply both L and R by this common ratio, we'll get the actual length and actual width of the rectangle, Recalling that the formula for the perimeter of a rectangle is P = 2L + 2R, we get:
2(5r) + 2(3r) = 16r = 208 in
Then r = 208/16 = 13
Thus, the actual length is 5(13 in) and the actual width is 3(13 in.),
or 65 in and 39 in respectively.
As a check, calculate 65 in / 39 in; this comes out to 5:3, as required.
Then
According to the WHO report, girls who are 2-years old have a mean head circumference of 47.18cm with a standard deviation of 1.40 cm. A two year old girl with Down's syndrome has a head circumference of 44.5 cm. Children with Down's syndrome typically have smaller heads, so this is not surprising. 1. Relative to the WHO data, what is this girls z-score? What does the z score tell us? 2. Using the WHO data in a normal model, what percentage of the girls has a head circumference that is smaller than the girl with Down's Syndrome?
Answer:
1. z = -1.91429
The z score tells us that the head circumference of the girl with the down syndrome ( 44.5 cm) is 1.91429 standard deviations below the mean or average head circumference
2. 2.7792%
Step-by-step explanation:
1. Relative to the WHO data, what is this girls z-score?
z score formula is:
z = (x-μ)/σ, where
x is the raw score = 44.5 cm
μ is the population mean = 47.18cm
σ is the population standard deviation = 1.40cm
z = 44.5 - 47.18/1.40
z = -1.91429
What does the z score tell us?
The z score tells us that the head circumference of the girl with the down syndrome ( 44.5 cm) is 1.91429 standard deviations below the mean or average head circumference
2. Using the WHO data in a normal model, what percentage of the girls has a head circumference that is smaller than the girl with Down's Syndrome?
z score = -1.91429
Probability value from Z-Table:
P(z =-1.91429) = P(x<44.5) = 0.027792
Converting to percentage = 0.027792 × 100
= 2.7792%
biren spends 3/8 of his share on clothes and 1/3
based on the graph, what are the rate of change and the y intercept of the line.
O the rate of change is 1/2 and the y-intercept is 1
O the rate of change is one and the y-intercept is 1/2
O the rate of change is 1/2 and the y intercept is -2
O the rate of change is 2 and the y intercept is 1
Answer:
The rate of change is 1/2 and the y-intercept is 1
Step-by-step explanation:
You can calulate the rate of change by picking two points on the graph and using the slope formula
(y2-y1)/(x2-x1)
so in this example you can use the points (2,2) represeting (x1,y1) and (4,3) representing (x2,y2)
When you plug into the slope formula you get:
(3-2)/(4-2) = 1/2 which is the slope.
The y-intercept is where the line intersects the y=axis and can be seen as the coordinate pair (0, #) where the # is the y intercept. From the graph you can see the y-intercept is 1, but you can aslo solve for the y-intercept using the slope-intercept equation:
y=mx+b
where b is the y-intercept and m is the slope.
so using a slope of 1/2 and a coordinate of (2,2) you get:
y-2=(1/2)(x-2)
y = (1/2x)-1+2
y = (1/2x) + 1
so now the equation is in slope-intecept form and you can see the slope is 1/2 and the y-intercept is 1
a man stands a distance away from a 45 foot tower. the angle of depression from the top of the tower to the man is 40 degrees. how far away is the man from the tower?
a bakery sells 3642 pastries in 2010. The bakery sells 8422 pastries in 2015. write a linear model that represents the number y of pastries that thw bakery sells x after 2010.
Answer:
Step-by-step explanation:
x is number of years after 2010
y is number of donuts
we are given
A bakery sells 7196 donuts in 2010
So, when x=0 , y=7196
Let's assume
The bakery sells 9236 donuts in 2015
now, we can find slope
we can plug values
now, we can use point slope form of line
we can plug values
Express your answer in simplified form.
Help would be appreciated!
Mr.Johnson is planning what to wear tomorrow. He has a white shirt, a plaid shirt, and a blue shirt. He has four pairs of pants to choose from. They are black, brown, gray, and white. If he chooses one shirt and one pair of pants, how any possibilities does r. Johnson have?
Answer:
Mr. Johnson has 12 possibilities.
Step-by-step explanation:
The information provided are:
Mr. Johnson has a white shirt, a plaid shirt, and a blue shirt.Mr. Johnson has four pairs of pants, black, brown, gray, and white.He chooses one shirt and one pair of pants.Compute the number of ways to select a shirt and a pair of pants as follows:
Total number of ways = Number of Shirts × Number of pair of pants
[tex]=3\times 4\\\\=12[/tex]
Thus, Mr. Johnson has 12 possibilities.
perimeter: 16, calculate
the value of x when the length
of the rectangle is 3x and the
hieght is x
Step-by-step explanation:
Perimeter = 16
length = 3x
height = x
P = 2L + 2H
16 = 2(3x) + 2(x)
16 = 8x
hence:
x = 2.
On a number line, 0.7 would be located. Choose all answers that make a true statement
A. to the right of 0.54
B. to the left of 0.8
C. between 1.6 and 1.8
D. to the right of 0.9
please help me
Answer:
A and B are correct
Need help asappppppp
Answer:
press control u on ur google forms quiz than scroll all the way down to the questions and the answer should be right next to them.
HOW DO I TRANSFORM THAT S INTO A ZERO!!!! PLS HELP!!!
You can add subtract divide or multiply.
Answer:
try dividing it's best for the problem your doing and ik im not the best at math but i do a lot of problem like this during school and first find what number -n is and it won't be a positive number remember that, tbh i really hope this helped im not sure if it did im so sorry if it didn't.
Step-by-step explanation:
ANSWER PLSSS NOWWWWW
Answer:
good luck with tht bro.....
nats grocery bill was $150 with a 5% discount. what was her bill before the discount
Answer:
Hello, the answer is $7.50 dollars.
5% is 0.5.
You multiply $150 by 0.5, then you get $7.50 dollars as the answer.
In order to train for cross-state biking trip, Julie rides her bike 34.65 miles five times a week. How many total miles does she ride each week?
Answer:
173.25 miles
Step-by-step explanation:
do 34.65 x 5 to get the answer.
hope this helps!
There are 8employees on The Game Shop's sales team. Last month, they sold a total of g games. One of the sales team members, Chris, sold 17 fewer games than what the team averaged per employee. How many games did Chris sell? Write your answer as an expression.
Answer:
(g/8) - 17
Step-by-step explanation:
Given that:
Number of employees = 8
Employees sold a total of g games
Chris sale = 17 fewer than team Average
Number of games Chris sold :
Team average :
Total sales made / number of employees
Team average = g/ 8
Number of games sold by Chris:
(g/8) - 17
Write a linear equation that passes throug the point (2,-9) and has a slope of -5 in slope-intercept form.
Answer: y = -5x +1
Step-by-step explanation:
y+9 = -5(x-2)
y+9 = -5x+10
y = -5x+1
What is the root of polynomial function
Answer:
The roots of a polynomial are those values of the variable that cause the polynomial to evaluate to zero
Step-by-step explanation:
Pls help me im really dumb right now but pls help me .p.s.its on career they didnt have a mode for career and pls dont do it for the points.
Answer:
A. National Labor Relations Act
Step-by-step explanation:
if 33 laptops cost 30,000, what proportion could be used to determine the cost of 11 laptops?
Answer:
30,00 divided by 33= 909.09 times 11=9,999.99 hope it helps you
Step-by-step explanation:
Please can’t you help me!!
REALY FAST PLEASE
Answer:
65%
Step-by-step explanation:
this is because the decrease of price is 247 amd if u divide by original its 65%
Consider the equation 4x -5(2x +1) = ax + b If a= (-6) and b=0 how many solutions does this eqaution have
it has one solution. x=2/7. im pretty sure
which relation is a function?
Answer:
A.) (The absolute value function)
Step-by-step explanation:
When evaluating pre-graphed relations, we can determine their functionality by performing the vertical line test!
Graph A (the one which looks like a v) passes the vertical line test while all others do not!
I hope I was of assistance! #SpreadTheLove! <3
Before 2017, smartphones by major manufacturers all had screens with a aspect ratio. In 2017, two major brands released phones with screens in an aspect ratio. However they still reported their screen size using the same diagonal length of the earlier phones, 5.8 inches. How did the change in aspect ratio affect the screen size, if at all?
Answer:
the question is missing the numbers, so I looked for a similar one and found that screens back in 2017 had a 16:9 ratio and since then it changed to 18.5:9 ratio
the area of the screen is b x a x 0.5
we can form triangles:
old aspect ratio (16:9):
a = 1.778b
h = √(a² + b²)
5.8 = √[(1.778b)² + b²]
5.8 = √(3.16b² + b²)
5.8² = 4.16b²
33.64 = 4.16b²
b² = 33.64 / 4.16 = 8.0865
b = √8.0865 = 2.8437
a = 2.8437 x 1.778 = 5.056
area = 2.8437 x 5.056 x 0.5 = 7.19 in²
new aspect ratio (18.5:9):
a = 2.0556b
h = √(a² + b²)
5.8 = √[(2.0556b)² + b²]
5.8 = √(4.2253b² + b²)
5.8² = 5.2253b²
33.64 = 5.2253b²
b² = 33.64 / 5.2253 = 6.4379
b = √6.4379 = 2.5373
a = 2.5373 x 2.0556 = 5.2157
area = 2.5373 x 5.2157 x 0.5 = 6.62 in²
the actual screen area decreased by 0.57 in² or 7.93%
Chuck-E-Cheese is open for 11 ½ hours during a day. The arcade keeps one employee in charge of games at a time. Each shift is 3 ¾ hours long. How many complete shifts are there each day?
Answer:
3 complete shifts
Step-by-step explanation:
Simple division!
11.5 / 3.75 =
3.066 --> 3
Consider Brainliest! Hope I helped!
Choose the best answer. What is the value of the expression x + (-y) when x = 1.2
and y = -10.72
-9.5
11.9
-11.9
9,5
Answer:
[tex]-9.5[/tex] is the best answer.
Step-by-step explanation:
Given the expression
[tex]x + (-y)[/tex]
putting x=1.2 and y=-10.72 in the expression
[tex]x\:+\:\left(-y\right)=1.2\:+\:\left(-10.72\right)[/tex]
[tex]=-9.52[/tex]
Therefore, -9.5 is the best answer.
(a x b) x c = a x (b x c) (Commutative, Associative, Identity, or Distributive)
Answer:
commutative property
Step-by-step explanation:
Jada gets a quarters from a change machine at an arcade. She receives 4 quarters for every
dollar bill, d, that she puts into the machine.
What variable is dependent and independent between The number of dollor bills which is d and the number of quarters which is q??
Answer:
The dollar bills d are the independent variable while the number of quarters q are the dependent variable
Step-by-step explanation:
Here, we want to state the variable that is dependent and the one that is independent
from the question, she has to put in dollars to get the quarters
so the number of quarters she gets is dependent on the number of dollars put into the machine
Thus, we can conclude that;
The dollar bills are the independent variable while the number of quarters q are the dependent variable
Independent variables are those who are not dependent on other variables. In contrast, their exists dependent variables whose value depends on some other variable(s)' value(s).
For given case, the number of dollar bills 'd' is independent variable with respect to variable 'q'.
The number of quarters 'q' is dependent variable.
What are independent variables?Independent variables are those who are not dependent on other variables for their evaluation.
What are dependent variables?Those variables whose value is decided by the values of other variables. This shows that the variable in consideration is dependent on other variables for its values, thus called dependent variable.
Which of 'd' or 'q' is dependent and independent?If you see it carefully, you'll see that the quarters received from the change machine is depending on how much dollar bills you're feeding to the machine.
Thus, the value of 'q' is dependent on the value of d.
But since d takes its value independent of q (it exists before q exists and doesn't need q to get its values), thus, d is not dependent on q or is independent variable with respect to q(i said "with respect to q" since d might be dependent on some other variable which we do not know right know)
Thus:
The variable 'q' is dependent variable (depends on d)
The variable 'd' is independent variable with respect to 'q.
Learn more about dependent and independent variables here;
https://brainly.com/question/967776