Answer:
Step-by-step explanation:
Let the number be x.
4x+7=19
4x=12
x=3
Evaluate |x^2 +9x| at x = -4
Expand the linear expression 6(7m+2)
Answer:
6(7m+2)=42m+12
Step-by-step explanation:
Step 1: Distribute the 6 to 7m and 2. So, 6 x 7m = 42m
Step 2: Multiply the 6 x 2 which equals 12.
Step 3: 42m+12
1. On a given day, Tyler runs twice as fast as his brother Ian on the local track. In one race, Ian gets a 330 meter head start, and they start running at the same time. After 21 seconds, Tyler catches up to Ian. Let x represent Ian’s rate (in meters/second). Write and solve an equation to find the rate that Ian runs. (Remember that distance = rate x time.) If you get a decimal answer, round to the nearest tenth.
Write the equation (2pts):
Solve the equation to find Ian’s rate (x) (2 pts):
Answer:
imma say 184 rpm
Step-by-step explanation:
Bath and 1 yard of ribbon. She is 1/2 yard for project. She wants to divide the rest of the ribbon into pieces 1/4 yards long. How many 1/4 pieces of ribbon can she make
Answer:
2
Step-by-step explanation:
Given:
Total length of ribbon = 1 yard
Length of ribbon used for project = [tex]\frac{1}{2}[/tex] yard
Length of ribbon the rest of ribbon is to be divided = [tex]\frac{1}{4}[/tex] yard
To find:
The number of ribbons of length [tex]\frac{1}{4}[/tex] yard that can be made = ?
Solution:
Length of ribbon left after the 1 yard ribbon is used for project can be calculated by subtracting the length of ribbon used from the initial length of ribbon.
i.e.
Length of ribbon left = [tex]1-\frac{1}{2} =\frac{1}{2}[/tex] yard
Now, number of ribbon of length [tex]\frac{1}{4}[/tex] yard can be found be dividing the length of ribbon left with the length of ribbon pieces to be cut.
i.e.
Number of ribbons:
[tex]\dfrac{\frac{1}{2}}{\frac{1}{4}}\\\Rightarrow \dfrac{1}{2}\times 4 = 2[/tex]
Can you please explain how I got it wrong and how to get it right (thx)
I need help on this question
Answer:
5 square feet
Step-by-step explanation:
First, you need to convert the inches into feet
24: 2
30: 2.5
2*2.5= 5
So it is 5square feet
Emir and his family ordered a meal that cost $50. Emir paid 8% sales tax and left an 18% tip on $50. What was the total cost?
Answer:
$63.00
Step-by-step explanation:
Your first step is to change the percents into fractions, you do this by moving the decimal point two times to the left.
Your equations look like this:
Tip equation: .18 * 50 = $9.00
Tax equation: .08 * 50 = $4.00
Then you just add them all up to get the total, and you get,
9+4+50 = 63
What would an equation be for a line with a slope of 3 and a y-intercept of 7?
Answer:
y = 3x + 7
Step-by-step explanation:
Using the formula y = mx + b we can create this equation.
m = slope
b = y -intercept
based on the information provided I know that
Slope = 3
and
y-intercept = 7
Substitute:
y = mx + b
y = 3x + 7
y = 3x + 7 is the equation when the slope is 3 and the y intercept is 7.
Let us use the slope-intercept form for this, with m as the slope and b as a constant.
y = mx + b
7 = 3(0) + b [since the y-int is 7, the x value will be zero]
b = 7
y = 3x + 7
If Ryan walks 3/4 miles each 1/3 hour, how many miles will Ryan walk in one hour?
this is urgent!!
Answer: He will walk 2 1/4 miles in an hour
Izabella earns $21.24 every 3 weeks. At this rate, how much will she earn in 5 weeks?
Answer:
$35.40
Step-by-step explanation:
i did the math
0.5 e + 20= 25
solving equations
Answer:
e = 10
Step-by-step explanation:
Simplifying
0.5e + 20 = 25
Reorder the terms:
20 + 0.5e = 25
Solving
20 + 0.5e = 25
Solving for variable 'e'.
Move all terms containing e to the left, all other terms to the right.
Add '-20' to each side of the equation.
20 + -20 + 0.5e = 25 + -20
Combine like terms: 20 + -20 = 0
0 + 0.5e = 25 + -20
0.5e = 25 + -20
Combine like terms: 25 + -20 = 5
0.5e = 5
Divide each side by '0.5'.
e = 10
Simplifying
e = 10
Answer:
e = 1
Step-by-step explanation:
0.5e + 20 = 25
0.5e = 5
e = 1
You subtract 20 from 25 to get 5. Then you divide 5 by 5 to get e = 1
pls give brainliest!!
the diagram below shows the graph of y=x²- 3x+1
use the graph to solve the equation
x²-3x+1=4
There are 2 answers since this is a quadratic equation. They way you find it is check the [tex]x[/tex] values for which lie on the graph of the equation given and also on the graph of: [tex]y = 4[/tex]
In this case, it would be [tex]-0.8[/tex] and [tex]3.8[/tex]
PLEASE HELP ILL MARK U AS THE BRAINLEIST
Answer:
Slope Rise/Run
count from one point to another by going up or down then left or right if is down is negative if is left is negative but two negatives equal a positive
Have a nice day/night HAPPY THANKSGIVING!!!
Step-by-step explanation:
165
June has $1.95 in dimes and nickels. She has a total of 28 coins. How many dimes and how many nickels does she have?
Answer: There are 11 dimes and 17 nickels.
Step-by-step explanation:
3 2/4 + 1/4 =
41/3-2/3 =
44/5 1/3 =
33/4 = 2/3 =
Answer:
jdjjsjsjjjdjdjjsjshshshud
a
Write and evaluate the expression. Then, check all that
apply
the difference of a number and ninety;
o Write the expression as
90
when a = 102
Subtraction Words
Write the expression as 90-a.
Write the expression as a -90,
O Substitute 102 in for the variable, a.
Simplify by subtracting 90 from 102.
Simplify by dividing 102 by 90.
decreased by
difference
fewer
The answer is 1.13.
less than
The answer is 12.
subtract
Answer: Write the expression as a -90,
O Substitute 102 in for the variable, a.
Simplify by subtracting 90 from 102.
Step-by-step explanation:
The answer is 12.
subtract
The value of the expression at a = 102 is, 12.
What is an expression?Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.
Let the unknown number = a
The expression is written as;
⇒ a - 90
Now, We can substitute a = 102 in above equation, we get;
⇒ a - 90
⇒ 102 - 90
⇒ 12
Learn more about the mathematical expression visit:
brainly.com/question/1859113
#SPJ2
The sunshine ski shop makes a profit of $40 on each pair of skis sold. Shop expenses for one week are 2,480. What is the minimum number of pairs of skis that must be sold in one week to make profit of at least $2,000
Answer:
Number of units to sell= 112 units
Step-by-step explanation:
Giving the following information:
Unitary contribution margin= $40
Fixed costs= $2,480
Desired profit= $2,000
To calculate the number of units to be sold, we need to use the following formula:
Break-even point in units= (fixed costs + desired profit) / contribution margin per unit
Break-even point in units= (2,480 + 2,000) / 40
Break-even point in units= 112 units
Answer:
32000
Step-by-step explanation:
How does anyone know how to prove parallel lines, especially when there are two pairs of them?
Answer:
Step-by-step explanation:
If two lines are cut by a transversal so that any pair of alternate interior angles are congruent, then the lines are parallel. If two lines are cut by a transversal so that any pair of corresponding angles are congruent, then the lines are parallel. You can use these converses to decide whether two lines are parallel.
5x+9−2x+13=67 solve the equation
Answer:
5x+9−2x+13=67
3x+9+13=67
3x+22=67
3x=45
x=15
Mark brainliest!!
Step-by-step explanation:
3x + 22 = 67
3x = 67 - 22
3x = 45
x = 45/3
put the this is ur calculator and u will get the answer
round 1 5/9 to the nearest half A.1 B.1 1/2 C.2 D.2 1/2
Answer:
I'm pretty sure the answer is B. 1 1/2 I hoped this helped
Solve
Which equation in point-slope form, is represented by this graph?
y
−
3
=
1
2
(
x
−
4
)
y−3=
2
1
(x−4)
y
=
2
x
+
4
y=2x+4
y
−
3
=
3
(
x
−
4
)
y−3=3(x−4)
y
−
3
=
1
2
(
x
−
7
)
y−3=
2
1
(x−7)
Answer:
y - 3 = (1/2)(x - 4)
Step-by-step explanation:
The graph is hard to read, but we can make assumptions about the x- and y-values shown. The y-intercept appears to be (0, 1) and the blue dot appears to be (4, 3). Let's try finding the equation of the line using this assumed data:
The point-slope equation is y - k = m(x - h), where (h, k) is a point on the line and m is the slope of the line.
We need the slope of the line. Recall that m = rise/run. Going from (0, 1) to (4, 3), x (the 'run') increases by 4 and y (the 'rise') increases by 2. Thus, the slope is m = rise/run = 2/4, or 1/2.
Substituting the known values into the point-slope equation y - k = m(x - h), we get:
y - 3 = (1/2)(x - 4)
7+ 10 = 16 + 2 true or false
Answer:
no bc if you simplify it's 17=18 which is not right
Answer:
true
Step-by-step explanation:
because that has a solution
According to the U.S. Bureau of the Census in its Current Population Reports (Series P60) the average
poverty threshold was $8241 for a three-person household in 1993. For a group of 81 three-person households
the standard deviation was $972. Find a 99% confidence interval for the average poverty threshold for a three-
person household.
Answer:
lkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk
Step-by-step explanation:
show work / explain it
Answer:inequality form x ≤ -1
for 3x + 9 ≤ 6
Step-by-step explanation:isolate the variable by dividing eash side by factors that dont contain the variable
Answer:
Answer Varies
Step-by-step explanation:
For the 1st equation, there are a lot of numbers that could fit x, such as any negative number, such as -1,-2,-3, etc. For the 2nd equation, 9 and below would work. Please correct me if I am wrong because everybody makes mistakes.
___________ is a share of ownership in a business or company.
Answer:
Shares
Step-by-step explanation:
PLS GIVE BRAINLIEST
Chris labels every lattice point in the coordinate plane with the square of the distance from the point to the origin (a lattice point is a point such that both of its coordinates are integers). How many times does he label a point with the number $25$?
Answer:
4 times
Step-by-step explanation:
A lattice point may be defined as the point of intersection of two grid lines or more than two grid lines that is placed in a regularly spaced points arrays. This is called a lattice point.
In the context, Chris tries to label every lattice point in a coordinate plane with its square of distance from the point to its origin. The lattice points means that the numbers are both the integers. So for number 25, Chris has to label 4 times
i.e. (55),(-5,5),(5,-5),(-5,-5)
CAN YOU HELP ME thank you 10pts
9514 1404 393
Answer:
m∠CAB = 62°
m∠CBG = 114°
Step-by-step explanation:
Given:
the above figure
Find:
What are the measures of angles CAB and CBG
Solution:
The total angle at C is 32°+52° = 84°. We know that "remote interior" angles ECB and EBE have a sum that matches angle CEF.
So, angle CBE = 150° -84° = 66°
Angle CBG is the supplement of this, so is ...
m∠CBG = 180° -66° = 114°
That angle is the total of "remote interior" angles BCA and CAB. So angle CAB is ...
m∠CAB = 114° -52° = 62°
The ratio of students to adults on a field trip is 8 to 1. Which table correctly shows this ratio for each grade?
Explain why. help please thank you!
5p - 13 < 32
Please and thank you
Answer:
p < 9
Step-by-step explanation:
5p-13<32
Subtract 13 from both sides.
5p<45
divide 5 from both sides
p < 9
Lindsey's cookie recipe uses 1 1/2 cups of brown sugar to make 2 dozen cookies. Lexi wants to make only 1 dozen cookies. How much brown sugar should Lexi use?
Answer:
(3/4) cups
Step-by-step explanation:
It is given that,
Lindsey's cookie recipe uses 1 1/2 cups of brown sugar to make 2 dozen cookies.
We need to find how much brown sugar should Lexi use to make only 1 dozen cookies.
2 dozen cookies = 1 1/2 cups
= 3/2 cups
For 1 dozen cookies,
[tex]\dfrac{\dfrac{3}{2}}{2}\\\\=\dfrac{3}{4}\ \text{cups}[/tex]
So, to make 1 dozen cookies, she will need (3/4) cups of brown sugar