To solve this, we need to use the z statistic. The formula for z score is:
z = (x – u) / s
where x is sample value = less than 90, u is the sample mean = 90.6, s is the standard deviation = 17.2
z = (90 – 90.6) / 17.2
z = -0.035
From the standard distribution tables:
P (z = -0.035) = 0.4860
Therefore there is about 48.60 % chance that it will be less than 90 pounds
give me the most DETAILED explanation.
6 + 6 - 6 x 6 ÷ 6 = ?
What is the expression of the product of w and 8
Answer:
The expression would be 8w
PLEASE HURRY TY:)))))):):);););)::):):):):):):):
1 1/2 divided by 2 1/4
How do you solve fractions and multiplication in algebraic, ex:1/3× -4
Answer: x=12
Step-by-step explanation:
1/3 x -4
1/3x=4 <---- First add 4 to each side of the equation (moves the "-4")
1/3x(3)=4(3) <---- Muliply each side by "3" to get rid of the fraction
x=12
Hi. I need help with this question :
Question : y is such that
[tex]4y - 7 \leqslant 3y[/tex] and
[tex]3y \leqslant 5y + 8[/tex]:
I). What range of values satisfies both inequalities ?
II). Hence, express
[tex]4y - 7 \leqslant 3y \leqslant 5y + 8[/tex]
in the form of
[tex]a \leqslant y \leqslant b[/tex]
where a and b are both integers.
Please show workings.
Answer:
-4≤y≤7
Step-by-step explanation:
4y-3y≤7
y≤7
and
3y-5y≤8
-2y≤8
y≥-4
so, -4≤y≤7
9514 1404 393
Answer:
-4 ≤ y ≤ 7
Step-by-step explanation:
Solve the inequalities separately, then identify the intersection of the solution sets.
4y -7 ≤ 3y
y -7 ≤ 0 . . . . . . . subtract 3y
y ≤ 7 . . . . . . . . . add 7
3y ≤ 5y +8
0 ≤ 2y +8 . . . . . . subtract 3y
-8 ≤ 2y . . . . . . . . . subtract 8
-4 ≤ y . . . . . . . . . . divide by 2
The intersection of the sets y ≤ 7 and -4 ≤ y is given by ...
-4 ≤ y ≤ 7
FIND THE ORIGINAL PRICE SAW.
4. Nick's parents paid $435 for an x-box gaming system. This was after the 20%
Game Stop Loyal Customer member discount How much is the game console to
customers who are not Loyal Customer members?
Answer: $87
Step-by-step explanation:
Please help me geometry
Answer:
ASA
Step-by-step explanation:
ASA Congruence Theorem
evaluate functions
g(0)=-x-2
Answer:
g(0) = -2
Step-by-step explanation:
g(x) = -x - 2
To find g(0), replace x with 0 in the equation.
g(0) = -0 - 2 = -2
The first equation in a system is 5x+2y=-4. Which equation gives a system with no solution.
Answer:
= 0.8 + -0.4y
Step-by-step explanation:
Simplifying
5x + 2y = 4
Solving
5x + 2y = 4
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-2y' to each side of the equation.
5x + 2y + -2y = 4 + -2y
Combine like terms: 2y + -2y = 0
5x + 0 = 4 + -2y
5x = 4 + -2y
Divide each side by '5'.
x = 0.8 + -0.4y
Help me please!
If you get it right, I’ll will brainliest u!!
Answer: c
Step-by-step explanation:
Express the interval using inequality notation,
-4,5
Answer:
First you mark me Brainlyist
Step-by-step explanation:
Then you you use the intervol of I don’t know then you ask someone else
Find the missing number (i.e. the coefficient in front of x) so that the equation has no solutions: □x + 4 = 4x + 15
Answer:
X=8
Step-by-step explanation:
Catherine bought apples and pears for a school picnic. The total number of pieces of fruit that she bought was less than 100. She bought more apples than pears.
Answer:
it says LESS THAN not less tha n or equal to so it cant be a or b or d, so it is c!
Step-by-step explanation:
Catherine bought apples and pears for the school picnic. If the total fruit is less than 100, then the correct equation for this will be y<100-x and y<x. Hence, option C is correct.
What is an equation?Equations are mathematical expressions that have two algebra on either side of an equal (=) sign. The expressions on the left and right are shown to be equal to one another, demonstrating this relationship. L.H.S. = R.H.S. (left-hand side = right side) is a fundamental simple equation.
As per the given data in the equation,
Catherine bought apple and pears.
The overall quantity is less than 100
Let the number of apples is x and,
The number of pears is y.
She bought more apples than pears,
y<x.
And y < 100-x.
To know more about an equation:
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Pls help me with this math..... its kind of easy...
Find the radius, diameter and area
12 cm
radius
diameter
Blank 1:
Blank 2:
Blank 3:
I need help *^
Answer:
Hey mate.....
Step-by-step explanation:
If your diameter is 12cm then radius is = 6cm and to find the area use the formula pi.r. power 2.....
hope it helps you,
mark me as the brainliest....
Follow me
Suppose both factors in a multiplication problem are multiples of 10. Why might the number of zeroes in the product be different than the total number of zeroes in the factors?
Answer:
Multiplying factors whose products are multiples of 10 add to the number of zeros when factors are multiplied as multiples of 10s.
Step-by-step explanation:
Let the first five multiples of ten be
10*1= 10
10*2= 20
10*3=30
10*4=40
10*5= 50
Suppose we chose 20 and 50.
Now multiplying 20 with 50 we get
20*50= 1000
IF we count the total number of zeros in the factors ( 20 and 50) they are 2.
But the number of zeros in the product (1000) are 3.
This is because when we multiply 2 with 5 we get 10 which adds to the existing number of zeros ( i.e 2) and we get a total of 3 zeros.
And multiplying 10 with 50 we get
10*50= 500
IF we count the total number of zeros in the factors ( 10 and 50) they are 2.
But the number of zeros in the product (500) are also 2.
This is because when we multiply 1 with 5 we get 5 which does not add to the existing number of zeros ( i.e 2) and the total number of zeros remain the same.
Similarly multiplying 20 with 30 we get
20*30= 600
IF we count the total number of zeros in the factors ( 20 and 30) they are 2.
But the number of zeros in the product (600) are also 2.
This is because when we multiply 2 with 3 we get 6 which does not have a zero and the total number of zeros remain the same as in the factors.
So we see that multiplying factors whose products are multiples of 10 add to the number of zeros when factors are multiplied as multiples of 10s.
Help. Please open powerpoint and help me!
Answer:
30.4%
1000 at £1.10
1000 x 1.10 = £1100
35% of 1000 is given away
1000 - 35% = 1000 - 350 = 650 left
35% of £1100 = £385, subtract to get £715 pounds worth of pins left
650 are left, with 385 pounds lost
60% of 650 = 390 pins sold at £3 each
40% of 650 = 260 sold at £5 for 2
3 x 390 = £1170 made from the first lot
260/2 = 130 x 5 = £650 made from the second lot
£1170 + £650 = £1820 from sales
Sales - cost to make - losses (giveaways) = profit value
1820 - 1100 - 385 = 335 pounds of profit
To find the gross profit margin, we take the profit, and find what percentage of the production cost it is.
335 is about 30.45% of 1100
30.45%, which is 30.4% to 1 decimal place.
The user is not responsible for any errors and all care should be taken to validate answer by self before submission.
5x^2-10x=0 written in factored form
Help me Out pleaseeeeeeeee
solve the equation t8/t2 = _____
Answer:
[tex]t^{6}[/tex]
Step-by-step explanation:
I am going to assume exponents for this question.
[tex]\frac{t^{8}}{t^{2}}[/tex]
When dividing exponents with the same base, it is simply subtraction, so 8 - 2 = 6 which produces the answer.
Which factors composed the least common denominator of for this difference?
Answer:
-2x, (x+6), and (x-2)
I got this right on edmentum.
Step-by-step explanation:
Will give Brainliest!!!
What is the y=mx+b of the equation x+3y=−15
Answer:
y = -1/3x - 5
Step-by-step explanation:
First, we need to get y by itself so we subtract x from both sides, giving us: 3y = -x - 15
Secondly, we need to isolate the y, so we divided the 3 out on both sides giving us: y = -1/3x - 5 which is our answer.
You are working on decorating your home for the holidays. You enjoy hanging lights and so far have invested in $75 worth of lights. You notice a sale that you can get strands of lights for $5 a box this week. Write an expression that describes your total investment (money spent) in lights, depending on how many boxes (b) you buy.
Answer:
Step-by-step explanation:
i=75+5b
The expression that describes the total investment(money spent) in light is 75+ 5(b)
What are word problems?Word problems require the application of algebraic expression in solving real-life problems. It can be expressed with the use of variables and arithmetic operations.
From the given information:
The amount of money invested on lights = $75If a box (b) cost = $5The total investment spent in light = 75 + 5b
Learn more about word problems here:
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Find two integers whose sum is -3 and product is -70
Answer:
(-10) and 7
Step-by-step explanation:
-3 = (-10) +(7)= -3 (because + and - give you a - )
-70 = (-10) x (7)= -70
hope it answers your question correctly.
OMg plzzz help due 5 minutes answer whatever u can and real answers plz
A box has a length of 8 centimeters, a width of 7 centimeters, and a height of 5 centimeters. What is the total volume of the box?
A 616161 cubic centimeters
B 969696 cubic centimeters
C 250250250 cubic centimeters
D 280280280 cubic centimeters
IX
IX
90
3
80
2
| 1
1
70
B.
C.
Find the value of x in the equation below 5= x/6
Answer:
x=30
Step-by-step explanation:
Answer:
x=30
Step-by-step explanation:
To find the value of x in an equation, our goal is always to isolate it so that it's on one side of the equal sign while everything else is on the other. We can do this by performing inverse operations to cancel values out (for example, the inverse operation of addition is subtraction and the inverse operation of division is multiplication).
5=x/6
Because x is being divided by 6, we multiply both sides by 6 to cancel it out on the side with x.
5×6=(x/6)×6
5×6=x
30=x
I hope this helps!
The trend line passes through (10,9) and (35,0). Write an equation for the trend line.
Answer: Solution :
Step 1 :
Make a scatter plot of Lily’s running data.
Step 2 :
To draw a trend line, use a straight edge to draw a line that has about the same number of points above and below it. Ignore any outliers.
Step 3 :
Find the slope of the trend line.
The line passes through points (2, 20) and (4.5, 45).
Use the slope formula.
m = (y2 - y1) / (x2 - x1)
Substitute x1, = 2, y1 = 20, x2 = 4, and y2 = 45.
m = (45 - 20) / (4.5 - 2)
m = 25 / 2.5
m = 10
Step 4 :
Find the y-intercept of the trend line.
Slope-intercept form equation of a line :
y = mx + b
Plug y = 20, m = 10 and x = 2.
20 = 10 · 2 + b
20 = 20 + b
Subtract 20 from both sides.
0 = b
Step 5 :
Use your slope and y-intercept values to write the equation.
Slope-intercept form equation of a line :
y = 10x + 0
So, the equation for the trend line is
y = 10x
Example 2 :
David records the number of chapters and the total number of pages for several books as given below.
No. of chapters
3
4
5
8
10
11
15
17
19
No. of pages
20
44
50
95
90
130
125
170
160
Step-by-step explanation: