Answer:
Résous l'équation suivante pour la variable d:20
Step-by-step explanation:
/
D-9=11
20-9=11
Write the phrase as an expression.
18 less than a number r
expression:
Answer:
r - 18
Step-by-step explanation:
Less than means you put the 18 behind the r
Less than means subtraction
The expression for the phrase 18 less than the number r is r - 18.
What is an expression?An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.
Example: 2 + 3x + 4y = 7 is an expression.
We have,
18 less than a number r.
Number = r
This means,
r - 18
Thus,
The expression is r - 18.
Learn more about expressions here:
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find the zeros of the function by factoring.
3x^2+10x=8
Answer:
x = -4, 2/3
General Formulas and Concepts:
Algebra I
Standard Form: ax² + bx + c = 0FactoringStep-by-step explanation:
Step 1: Define
3x² + 10x = 8
Step 2: Find Zeros
Rewrite in SF: 3x² + 10x - 8 = 0Factor: (x + 4)(3x - 2) = 0Solve for x: x = -4, 2/3i need help 42/18 simplified.
Answer:
The simplest form of 42/18 is 7/3 or 2 1/3
Step-by-step explanation:
Answer:
7/3 or 2 and 1/3
Step-by-step explanation:
So first you have to find what is GCF of 42 and 18, which is 6 so divide 42 and 18 by 6 and you get 7/3 which is your simplified fraction but you can make this into a mixed number which would be 2 and 1/3
mandy flips a quater 360 times .how many time should she expect to see heads
Answer:
180
Step-by-step explanation:
Ann already knew 4 appetizer recipes before starting culinary school, and she will learn 3 new appetizer recipes during each week of school. Write an equation that shows the relationship between the number of weeks W and the number of appetizer recipes A.
Write your answer as an equation with a first, followed by an equals sign.
PLS SOMEONE ANSWER PLS PLS PLS! I WILL GIVE YO BRAINLIEST IF IT IS CORRECT!
Answer:
A = 3W + 4
Step-by-step explanation:
She learns 3 new recipes every week, which gives 3W
Then we add 4 because she already knew 4.
choose the definition for the function y={x+1 x≤2 x+2 x>2 y={x+1 x>2 x+2 x≤2 y={x+1 x
Answer:
D
Step-by-step explanation:
75 into the ratio of 4:5
Answer:
4.7
Step-by-step explanation:
How to classify triangles by its sides and by its angles help pls
Step-by-step explanation:
triangle with 2 sides of equal lengths= isoceles
triangle with 3 sides of equal lengths= equilateral
Answer:
if the two sides are congruent, then it's an isosceles triangle.
all angles congruent and it's an equilateral.
all angles unequal and it's a scalene.
if all the angle measures are less than 90 degrees, then it's acute, but more than 90 degrees would be obtuse.
Banita has a piece of string that is One-tenth times 7 inches long. Which fraction is equal to the length of Banita’s string?
One-tenth inches
Six-tenths inches
Seven-tenths inches
Eight-tenths inches
for valentines day miranda is bringing cards to class. the number of cards she brings in is based on the number of students in her class
c= the number of cards
s= the number of students
which of the variables is independent and which is dependent
Answer:
c dependent on s
Step-by-step explanation:
c is dependent on s and s can be any value
please any one knows the answer I only have 2 minutes left
What five-letter word becomes shorter when you add two letters to it?
Answer:
short .
short becomes shorter when you add er .
Step-by-step explanation:
Answer:
shorter
Step-by-step explanation:
short
shorter
3 divided by 1/4. How many groups of 1/4 are in 3
Answer:
there are 12 groups of 1/4 in 3
Step-by-step explanation:
multiply the reciprocal of 1/4 to 3 (division)
3×4(reciprocal of 1/4)= 12
that is the answer
Your friend claims that she has a bag of 30 coins containing nickels, dimes,
and quarters. The total value of the 30 coins is $3. There are twice as many
nickels as there are dimes. Is your friend correct?
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Answer:
No
Step-by-step explanation:
If all 30 coins were nickels and dimes, there would be 10 dimes and 20 nickels, for a total value of $2.00. Trading a dime and 2 nickels for an equal number of quarters raises the value to $2.00 -0.10 -2(0.05) +3(0.25) = $2.55.
That is, each such trade adds $0.55 in value to the total amount. Since the original difference of $3.00 -$2.00 = $1.00 is not evenly divisible by $0.55, there cannot be twice as many nickels as dimes.
__
For 30 coins, possible numbers of {nickels, dimes, quarters} are ...
{21,2,7}, {18,6,6}, {15,10,5}, {12,14,4}, {9,18,3}, {6,22,2}, {3,26,1}, {30 dimes}
Note that we can have 1.5, 3, or 10.5 times as many nickels as dimes, but not 2 times as many.
Someone please help me I will give brainliest! IT SOOOO HARD FOR ME!
Answer:
Step-by-step explanation:
We can do this by cross multiplying.
14/6=x/21
=49/21
I will mark brainliest for the best answer!!!! Please show FULL SOLUTIONS. THANK YOU.
Question: Determine The Value Of X.
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Answer:
x = 78
Step-by-step explanation:
The base angles of an isosceles triangle are congruent, so the sum of angles is ...
x° +x° +24° = 180°
2x +24 = 180 . . . . . collect terms
x + 12 = 90 . . . . . . . divide by 2
x = 90 -12 . . . . . . . . subtract 12
x = 78
_____
Additional comment
The base angle of an isosceles triangle is always the complement of half the third angle. That angle's bisector is an altitude, so divides the isosceles triangle into two congruent right triangles.
Melanie is going to invest in an account paying an interest rate of 3.1% compounded
daily. How much would Melanie need to invest, to the nearest dollar, for the value of
the account to reach $11,900 in 14 years?
Using compound interest, it is found that Melanie would need to invest a value of $7,710.
What is compound interest?The amount of money earned, in compound interest, after t years, is given by:
[tex]A(t) = P\left(1 + \frac{r}{n}\right)^{nt}[/tex]
In this problem, we have that:
Rate of 3.1%, hence [tex]r = 0.031[/tex].Compounded daily, hence [tex]n = 365[/tex].Value of $11,900 in 14 years, hence [tex]t = 14, A(t) = 11900[/tex].The amount she needs to invest is P.Hence:
[tex]A(t) = P\left(1 + \frac{r}{n}\right)^{nt}[/tex]
[tex]11900 = P\left(1 + \frac{0.031}{365}\right)^{365(14)}[/tex]
[tex]1.54339P = 11900[/tex]
[tex]P = \frac{11900}{1.54339}[/tex]
[tex]P = 7710[/tex]
Melanie would need to invest a value of $7,710.
To learn more about compound interest, you can take a look at https://brainly.com/question/25781328
Please Help Me!!!!!!!
Answer:
D
Step-by-step explanation:
(6, 24) this ordered pair has an x-value of 6 and a y-value of 24
The only equation, if you substitute those values into it, which works is D.
24 = 4(6)
24 = 24
In a bag of Starbursts, 30% of the candy is pink. There are 90 pink Starbursts in the bag. How many TOTAL Starbursts are in the bag?
Answer:
About 304.
Step-by-step explanat:
.=10 9/30=0.3. . . . . . . . .= 30% + 0.3. . . . . . . . .=60% 0.3. . . . . . . . .=90% = 0.9. . . 1/3 of . = 100% +0.1 1 1/3 x 3/10= 0.16x + 3y = 12 solve for y
Answer:
Y= -2x+4
Step-by-step explanation:
Put it in slope intercept form
y=mx+b
Now subtract 6x on both sides to get y isolated
3y=12-6x
Now divide 3 on both sides to get y by itself
y=4-2x
Now in slope intercept form is
y= -2x+4
Please help! I am so confused on this, I've probably been stuck on it for at least an hour.
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Answer:
see attached for the drawing
slope = -1/2
Step-by-step explanation:
For the rise of -1 and the run of 2, the slope is ...
m = rise/run = -1/2 . . . . slope in simplest form
__
Additional comments
It usually works best if you can identify points on the graph where the line crosses grid intersections. Then the number of squares in each direction can be counted easily. If you work with two grid intersections that are closest together, then the ratio of rise to run will already be in reduced form.
On this graph, there are other grid crossing points that are 4, 6, 8 units to the right or left of the one where we started. You need to remember that "run" is positive in the "right" direction, and "rise" is positive in the "up" direction.
We have shown the "rise" and "run" lines above the graphed line. They can also be shown below the graphed line.
Here, the grid squares are 1 unit in each direction. You need to pay attention to the scale, because some graphs have different numbering vertically than horizontally. The values for "rise" and "run" need to be figured using the appropriate scale.
find the missing term.
a) 14:7 = 6:
b) 10:2 = :8
Answer:
a) let the missing term be X ,then,
14:7=6:X
14/7=6/X
14x=7*6
X=7*6/14
X=3
b) let the missing term be X ,then,
10:2=8:X
10/2=8/X
10x=8*2
X=16/10
X=1.6
PLEASE HELP!!
Nathan placed a beaker of ice water, at 0°C, on a
hot plate. The temperature rose by 4°C. What
was the new temperature?
Answer:
0+4=4
So new temperature was 4 degrees Celsius
Step-by-step explanation:
Helpppppp plssssssssss
Answer
I dont know
Step-by-step explanation:
I would love to help but I have no clue
Answer:
slope = 12/7
Step-by-step explanation:
y2 - y1 / x2 - x1 = slope
slope = 4-(-8)/0-(-7)
slope = 12/7
The sporting goods store has a pair of soccer cleats on sale for $52. Without the sale they are $75. What is the percent of decrease? (Round to the nearest percent.)
Answer:
nl i can't give sorry again
Your family spends $30 for tickets to an aquarium and $3 per hour for parking. Write an equation that gives the total cost of your family's visit to the aquarium as a function of the number of hours that you are there. Find the total cost of 4 hours at the aquarium
Answer:
Equation: y=$3(x)+$30
Total cost $42
Step-by-step explanation:
Calculation to Find the total cost of 4 hours at the aquarium using this formula
y=mx+b
Where,
y intercept=Total cost
m=$3 per hour
b=$30 Tickets
x=4 hours
Let plug in the formula
First step is to form the equation
y=$3(x)+$30
Second step is to substitute 4 hours for m and b
y=$3(4)+$30
Hence:
y=$12+$30
y=$42
Therefore the equation will be y=$3(x)+$30 while the total cost of 4 hours at the aquarium will be $42
In the diagram below, RS and ST are perpendicular.
Which equation represents ST ?
А.
-x+ 3y = 9
В.
3x + y = 13
C
-3x+y=-13
D
3x + y=23
Answer:
A==−x+3y=9
Step 1: Add -3y to both sides.
−x+3y+−3y=9+−3y
−x=−3y+9
Step 2: Divide both sides by -1.
−x
−1
=
−3y+9
−1
x=3y−9
Answer:
x=3y−9
Mariah purchases three hair barrettes by using a gift card, which starts with a balance of $35.79. Which expression models her purchase? 3 b minus 35.79 35.79 + 3 b 35.79 b minus 3 35.79 minus 3 b
Answer:
35.79 minus 3 b
Step-by-step explanation:
Mariah purchases three hair barrettes by using a gift card, which starts with a balance of $35.79.
Let the number of barrettes be represented by b
She purchases 3 barrettes
Hence = 3 × b = 3b
Hence, the expression that models her purchase is given as:
$35.79 - 3b
Answer:
35.79-3b
Step-by-step explanation:
The value of the gift card 35.75 minus the cost of 3 barrettes (3b).
so 3b stands for 3 barrettes.
Solve, using a proportion.
If there are 75 pepperoni on
5 large pizzas, how many pepperoni
are there on 3 large pizzas?
Answer:
There are 45 pepperoni on 3 large pizzas
Step-by-step explanation:
Here, we want to use proportional relationship to solve this;
75 pepperoni to 5 large pizzas
x pepperoni to 3 large pizzas
75 * 3 = x * 5
x = (75 * 3)/5
x = 15 * 3 = 45
Plz answer this choice question
;)
Answer:
a and d
Step-by-step explanation:
Answer:
A
D
Step-by-step explanation:
The way that I would do this is by plugging in 2 values for x, double it then see what happens
Let's say 2
So when we plug in 2 for x we get
5*2=y
y=10
Then what happens when we double x?
Our new equation would be 10x
*we get this becase 5*2=10*
so we plug in to for y=10x and get y=10*2 which is 20. Our answer doubled and therefore the answer is A
Let's do the same thing for number 2 with the number 10
5/10=.5
Then when the value of x triples our new equation is 5/3x
we use this formula and get 5/(3*10)=5/30=1/6=.1666667
This is equal to dividing it by 3 which means the answer is D
» What percent of the bottle of orange juice is water?
Answer:
48 Not sure
Step-by-step explanation:
Answer:
75
Step-by-step explanation: