Answer:
100=25.99b+15.99dStep-by-step explanation:
step one:
let the number of Blu-rays be b and
DVDS be d,
step two:
given that Blu-rays cost $25.99each and
DVDS cost $15.99 each,
we can model the cost of the Blu-rays and DVDS, as
100=25.99b+15.99d
hence the expression for the number of Blu-rays and DVDS, is given as
100=25.99b+15.99d
Mr. Anderson had 4/5 of a pizza left over and split it among his 4 children. What fraction of the pizza did each child get?
Answer:
1
Step-by-step explanation:
there were 5 pieces now there is 4. so 4 slices of pizza divided by 4 is 1
Which expression is equivalent to 3(5f)?
Answer:
15f
Step-by-step explanation:
distribute the 3 and you get 15f :)
Answer:
I believe it would be the first one :)
Step-by-step explanation:
3x = 27 + 3y
3x - 10y = 27
please explain how you got the answer.
Answer:
Hi there!
Your answer is:
Y= 0
X= 9
Step-by-step explanation:
3x=27+3y
3x-10y=27
Solve one of them for Y
I chose the first equation
3x=27+3y
-27
3x-27=3y
/3
x-9 = y
NOW, plug y in the second equation!
3x-10y=27
y= x-9
3x-10y=27
3x-10(x-9) = 27
Solve for x!
3x-10x+90 = 27
-7x + 90 =27
-90
-7x = -63
/-7
x= 9
FINALLY, plug back in x for y equation
y=x-9
x=9
y=9-9
y=0
A certain standardized test measures students’ knowledge in math and English. The scatterplot displays the scores for 10 randomly selected students.
The equation y = 54.16 + 0.87x is called the least-squares regression line because it:
is least able to make accurate predictions for the data.
makes the sum of the squared residuals as large as possible.
makes the sum of the squared residuals as small as possible.
causes the relationship between English scores and math scores to be strongest.
Answer:
it's C
Step-by-step explanation:
The correct answer is: The equation y = 54.16 + 0.87x is called the least-squares regression line because it makes the sum of the squared residuals as small as possible.
The least-squares regression line is a line that best fits the given data points by minimizing the sum of the squared residuals. Residuals are the vertical distances between the actual data points and the predicted values on the regression line. By minimizing the sum of the squared residuals, the line is able to provide the best overall fit to the data.
Therefore, the least-squares regression line aims to minimize the differences between the predicted values and the actual data points, making the sum of the squared residuals as small as possible.
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raise the product of 36 and 9 to the power sum of 2 and 4
Answer:
Step-by-step explanation:
36 x 9 = 324
324^6
=324*324*324*324*324*324
=324^6
=1156831381426176
Wendy was traveling from Baltimore, MD to Cleveland, OH. For the first 2 3/4 hours of her trip, she drove an estimated 63 mph. For the second portion of her trip, which took her 3 1/2 hours, she drove at an estimated rate of 57 mph. Write an expression to model her distance and calculate how far she drove. You may use the distance formula d=r*t (distance = rate * time).
Answer: D = r*t + r*t 372 3/4 = (63 * 2 3/4) + (57 * 3 1/2)
OR
D1 + D2 = Total 173 1/4 + 199 1/2 = 372 3/4
D1 = r1 *t1 63 * 2 3/4 = 173 1/4
D2 = r2 * t2 57 * 3 1/2 = 199 1/2
Step-by-step explanation:
The trip is in two segments, so calculate the distance driven in each portion, then add the two distances together to get the total.
Another way to write the expression would be D = r*t + r*t
The total distance that Wendy drove to Cleveland will be 372.75 miles.
For the first 2 3/4 hours of her trip, she drove an estimated 63 mph. Then, the distance traveled will be:
= 63 × 2 3/4
= 173.25 miles.
For the second portion of her trip, which took her 3 1/2 hours, she drove at an estimated rate of 57 mph, the distance will be:
= 57 × 3 1/2
= 199.5 miles
The total distance traveled will then be:
= 173.25 miles + 199.5 miles
= 372.75 miles.
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Which expression can be used to solve 3/5 divide by 7/10
Answer:
[tex]\frac{3}{5} *\frac{10}{7}[/tex]
= [tex]\frac{30}{35} =\frac{6}{7}[/tex]
Joseph is making kebabs.he wants each kebab to have 3 pieces of meat and 4 pieces of vegetables.Which of the following could Joseph use to make kebabs without any leftovers?
Answer: Joseph could use C), D), and E) to make kebabs without any leftovers:
C) 30 pieces of meat and 40 pieces of vegetables
D) 45 pieces of meat and 60 pieces of vegetables
E) 72 pieces of meat and 96 pieces of vegetables
How were the answers determined? To solve for the answer, here are some pointers:
Consider the given which states that each kebab has 3 pieces of meat and 4 pieces of vegetables, and Joseph wanted to make kebabs without any leftovers - meaning, there should be no extra piece of meat or no extra piece of vegetable.
In choosing which is the answer, make sure that the number of pieces of meat must be divisible by 3 (pieces of meat), and the number of pieces of vegetables must be divisible by 4 (pieces of vegetables). This was also based on the given.
Moreover, the quotient for meat and the quotient for vegetables must be equal to each other so that there will be no leftovers.
Therefore, the answers are C), D), and E) because these three answers satisfy the conditions abo
Step-by-step explanation:
What is the value of the expression -8mutiplied by 3.2
Answer:
-25.6
Step-by-step explanation:
i need 3,4 please help! it’s due in 10
mins !! 15
points just pls help
Jack swam 8 taps. He swam 6 fewer laps than Lea.
How many laps did Lea swim?
pls quick
Answer:
Lea swam 14 laps.
Step-by-step explanation:
8+6=14
What is the circumference of the circle?
r=22in d=44in
A. 222in
B. 2.5in
C. 125.23in
D. 138.23in
Answer: D
Step-by-step explanation:
What is the solution of this equation?
5w +9= 19
Enter the correct answer.
Answer: w=2
Step-by-step explanation:
5w+9=19
minis 9 on the 9 and 19
5w+10
divide 5 on the ten to get 2
w=2
William travels only on Saturdays and Sundays and has flown 1,020 miles this month. Jason travels every weekday and has flown 2,200 miles this month. If each man travels about the same number of miles each day, who travels more miles per day for this month? Explain.
Answer:
William
Step-by-step explanation:
There are 8 Saturday and Sunday in a month. William travels only on Saturdays and Sundays and has flown 1,020 miles this month. He has travelled (1020/8) miles per day = 127.5 miles/day
There are 30-8 = 22 weekdays in a month. Jason travels every weekday and has flown 2,200 miles this month. It would mean that he travelled (2200/22) = 100 miles/day.
It is very clear that no of miles travelled per day by William is more than the no of miles travelled per day by Jason for this month.
PLEASE HELP I MESSED UP ON THE OTHER ONE! I MAY MARK BRAINLIEST
Answer:
b, c, d (please mark me brainliest)
Step-by-step explanation:
answer please thanks
Answer:
too blurry pls send new pic
Step-by-step explanation:
A corporation earned a profit of $2.5 × 104 for 1 × 103 days in a row. What was the corporation’s total profit during this time period?
Answer:
26780
Step-by-step explanation:
First, let us find how much did the corporation earn in one day.
$2.5x104=260
Now that we have found the amount of money the corporation earned in a day, it is time to find how many days did the streak continue.
1x103=103
Finally, let us find how much they earned during that period.
260x103
Total profit of corporation during a time period of 103 days is $ 26780
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 ,
Profit earned by Corporation in a day = $ 2.5 x 104
= $ 260
Total time period of Corporations' profit = 1 x 103 days
= 103 days
Total profit during a time period of 103 days =
Profit earned by Corporation in a day x 103 days
Total profit during a time period of 103 days = 260 x 103
= $ 26780
Hence , total profit of corporation is $ 26780
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Solve the system equation for X and using the elimination method .
- 2x + Зу = -1
2х + 5y= 25
Answer: 2х+5y=25= Slope = -0.800/2.000 = -0.400
x-intercept = 25/2 = 12.50000
y-intercept = 25/5 = 5
so slope form =0,400
x intercept form = 12.50000
y intercept =5
and the answer to 2x+3y=-1= Slope = 1.333/2.000 = 0.667
x-intercept = 1/2 = 0.50000
y-intercept = -1/3 = -0.33333
Step-by-step explanation: an equation of a straight line. Such an equation is usually written y=mx+b ("y=mx+c" in the UK).
"y=mx+b" is the formula of a straight line drawn on Cartesian coordinate system in which "y" is the vertical axis and "x" the horizontal axis.
In this formula :
y tells us how far up the line goes
x tells us how far along
m is the Slope or Gradient i.e. how steep the line is
b is the Y-intercept i.e. where the line crosses the Y axis
The X and Y intercepts and the Slope are called the line properties. We shall now graph the line 2x+5y-25 = 0 and calculate its properties
Notice that when x = 0 the value of y is 5/1 so this line "cuts" the y axis at y= 5.00000
y-intercept = 25/5 = 5
When y = 0 the value of x is 25/2 Our line therefore "cuts" the x axis at x=12.50000
x-intercept = 25/2 = 12.50000
Slope is defined as the change in y divided by the change in x. We note that for x=0, the value of y is 5.000 and for x=2.000, the value of y is 4.200. So, for a change of 2.000 in x (The change in x is sometimes referred to as "RUN") we get a change of 4.200 - 5.000 = -0.800 in y. (The change in y is sometimes referred to as "RISE" and the Slope is m = RISE / RUN)
Slope = -0.800/2.000 = -0.400
Geometric figure: Straight Line
Slope = -0.800/2.000 = -0.400
x-intercept = 25/2 = 12.50000
y-intercept = 25/5 = 5
so, um I'm very confused, the question says put the number of protons, electrons, and neutrons.
Answer: 4 square units
Step-by-step explanation:
To find the value of A in square units, substitute into the equation for s and solve.
Write an equation that represents the number sentence.
One-third the difference between the unknown number and 6, plus one-sixth the unknown number is -1.
A box of cereal states that there are 84 cal in a 3/4 cup serving what is the unit rate for calories per cup how many calories are there in 2 cups of cereal
Answer:
2 cups of cereal, would be 224 calories.
Step-by-step explanation:
If one cup is 112 calories, all you have to do is multiply it by 2. Which gives you the answer of 224.
Answer:
unit rate - 112
2 cups - 224
Step-by-step explanation:
I tried my best to figure this out, i hope its correct !!
Simplify.
3(x + 4) plzzz answer
Answer:
3x+12
Step-by-step explanation:
When we multipy 3 with (x+4) it becomes 3x+12
Answer:
3x+12
Step-by-step explanation:
3(x+4)
3*x=3.....keep the x with 3 because x just represents 1
3*4=12
so your answer should be
3x+12
hope this helps :)
At Store #1 for $625 you can buy 25 pairs of shoes. How much will you pay for 31 pairs of shoes?
Answer:
Step-by-step explanation:
25 pairs of shoes = $625
You need to find how much each pair of shoes cost.
1 pair of shoes = [tex]\frac{625}{25}[/tex] = $25
So for 31 pairs of shoes, you just multiply by 25
31 pairs of shoes = 25 x 31 = $?
За – 15b – 2c|
HELPPP!!
Answer:
what are solving it with??
Select True or False for each statement about equilateral triangles.
A. An equilateral triangle has 3 equal angle measures.
A True B False
B. An equilateral triangle has 3 equal side measures.
A True B False
C. An equilateral triangle has 3 lines of symmetry.
A True B False
Please help!!
Answer:
→ A. True
B. True
C. True ( lines are symmetry but triangle is not symmetry )
Why is x = 6 a solution to the proportion StartFraction 192/36=32/x?
Answer:
C
Step-by-step explanation:
When you cross multiply 192 times 6 it equals 1152 and if you multiply 32 times 36 you get 1152 and 1152 is equal to 1152.
hhhheeeellllpppppp pls
Answer:
3rd one 1000 times greater
Step-by-step explanation:
first you make 10^9 into 1000000000 then you make 10^6 into 1000000 then you divide them both and you get 1000
What is the value of x
Answer:
x equals 72
Step-by-step explanation:
it is a 1:3 scale
Whatever3443 pls help me someone is murdering me ✌
Answer:
i-
Step-by-step explanation:
Answer:
Oh no! I'm sorry!
Step-by-step explanation:
What is 0.20 as a fraction?