Answers
Related Questions
2. Let z represent the unknown number. Write expressions for:
a. A third of the unknown number plus three
b. Four times the unknown number less twice the number
C. The sum of the unknown number and its square
d. The fraction obtained when double the unknown number is divided by the sum of the unknown number and four
Answers
Answer:
a. z+3
b. 2z - 4z
c. z + z^2
d. 2z/(z+4)
Hope it helped.
What fraction of an hour is 8 minutes?
Give your answer in its simplest form.
Answers
Answer:
2/15
Step-by-step explanaion
4/30 simplified is 2/15
2x+2a=4b solve for a
Answers
Answer:
a=2b-x
Step-by-step explanation:
2x + 2a = 4b
Reorder the terms:
2a + 2x = 4b
Solving
2a + 2x = 4b
Solving for variable 'a'.
Move all terms containing a to the left, all other terms to the right.
Add '-2x' to each side of the equation.
2a + 2x + -2x = 4b + -2x
Combine like terms: 2x + -2x = 0
2a + 0 = 4b + -2x
2a = 4b + -2x
Divide each side by '2'.
a = 2b + -1x
Simplifying
a = 2b + -1x
The 7th grade class experienced a 15% decrease in enrollment.Last year,the 7th grade class had 280 students. How many how many students are enrolled in the 7th grade this year?
Answers
Answer: 238
Step-by-step explanation: 10% of 280 is 28. 1% of 280 is 2.8. Multiply 2.8 times 5 and you get 14. Add 10% and 5% (28+14) and you get 15% which is 42. Subtract 42 from 280 and you get 238.
Answer:
232 students are enrolled this year.
Step-by-step explanation:
Since 15% of the enrollment of the previous year is gone, you must take 15% of the total number of students and subtract that from the total number of students.
[tex]280*0.15=42[/tex]
This tells us that the 15% decrease means there are 42 fewer students enrolled this year. Now you would just subtract 42 from 280.
280 - 42 = 232
Find the 7th term of the arithmetic sequence given a12=29 and
a16=53
a7=___
Answers
Answer:
Thus: a7=-1
Step-by-step explanation:
Arithmetic Sequences
The arithmetic sequences are identified because each term is obtained by adding or subtracting a fixed number to the previous term.
The equation to calculate the nth term of an arithmetic sequence is:
[tex]a_n=a_1+(n-1)r[/tex]
We know: a12=29, a16=53, thus
[tex]a_1+(12-1)r=29[/tex]
[tex]a_1+(16-1)r=53[/tex]
Simplifying:
[tex]a_1+11r=29[/tex]
[tex]a_1+15r=53[/tex]
Subtracting both equations:
[tex]4r=53-29=24[/tex]
Solving:
[tex]r=24/4[/tex]
r=6
The 7th term can be found as 5 terms before the 12nd:
[tex]a_7=a_{12}-5r[/tex]
[tex]a_7=29-5*6=29-30=-1[/tex]
Thus: a7=-1
Two lengths are shown below: A. 24 inches B. 2 feet. Explain why length A is
equivalent to length B. Use your knowledge of converting inches to feet in
your answer.
I need help plzzz
Answers
Answer:
ok cuz evrey 12 inch = 1 feet thank youu
c) 2x(3x + 4)
expand the following:
Answers
Answer:
6x^+8x
Step-by-step explanation:
Its a monomial by a binomial, so we need to multiply the 2x with each term in the bracket, and put the sign in the brackets.
final answer: 6x^+8xAnswer:
[tex]6x^{2} +8x[/tex]
Step-by-step explanation:
Multiply 2x into the equation to get [tex]6x^{2} +8x[/tex].
Find the slope and the y-intercept of the line.
y = 5/4x+3
Answers
what matrix is a result of m x h enter your answer by filling in the boxes enter any fractions as simplified fractions
Answers
Answer:
-32/3 16 -16/3
Step-by-step explanation:
I got it wrong and this was the right answer
Answer:
Step-by-step explanation:
Here goes another question
Answers
Answer:
y = x - 8
Step-by-step explanation:
In order to solve this, we need to use point-slope form.:
y - y1 = m(x - x1)
Substitute the numbers into the equation:
y - (-8) = 1(x - 0)
y + 8 = x
y = x - 8
helpp ! look at the pic help me asap
Answers
Which fraction is equivalent to 0.018 ? there is a top enclose above 18 so, please help me with that ! thank you so much.
Answers
Answer:
9/500
Step-by-step explanation:
Encuentra el Minimo común múltiplo (m.c.m.) de los sieguentes numeros 12y 15
Answers
Answer:
is this question in Spanish ?
si
si
si
si
me speak english
si
si
si
Match the following to the correct solution
Answers
Answer:
a/c/z
Step-by-step explanation:
the sum of 4 consecutive integers is -62 write an equation to determine the smallest of the integers
Answers
Answer:
x + (x+1) + (x+2) + (x+3) = -62
x = -17
Step-by-step explanation:
x = smallest
x + (x+1) + (x+2) + (x+3) = -62
4x +6 = -62
4x = -68
x = -17
A rectangle is drawn on a coordinate grid. The equation for one side of the rectangle is 2x – 5y = 9. Which could be the equation of another side of the rectangle?
y = 5x + 9
y = 2x – 9
y = -2/5x + 9
y = 2/5x - 9
Answers
Answer:
D
Step-by-step explanation:
it just is
18x + 12- 4
I need help ASAP.
Answers
Answer:
b
Step-by-step explanation:
Answer:
B and E
Step-by-step explanation:
Somebody help please?
Answers
Answer:
x=13
Step-by-step explanation:
vertical opposite angles are equal.
Answer:
13
Step-by-step explanation:
THERE THE SAME
Sturdy the diagram
Value of
Answers
Step-by-step explanation:
5x + 2 = 50 - x (vertically opp angle)
5x + x = 50 - 2
6x = 48
x = 8
if you wanna check it,
5x + 2 = 50 - x
5(8) + 2 = 50 - 8
40 + 2 = 42
42 = 42
Cristian made an ankle bracelet using 6 red beads, 10 green beads, 4 purple beads, and 5 yellow beads. He wants to make a necklace that has the same ratio of color beads as the ankle bracelet. If the necklace has 15 yellow beads, how many purple beads will it have?
Answers
Answer:
20 is the answer
Step-by-step explanation:
MARK BRANIEST
five million, forty-three thousand, two hundred ninety-nine in numbers
Answers
Answer:
5,043,299
Step-by-step explanation:
five million = 5,000,000
forty-three thousand= 43,000
two hunded = 200
ninety-nine = 99
Answer:
5,043,299
Step-by-step explanation:
i thinks its that
Multiply (12-5i)(-3+4i)
Answers
Answer:
−16 + 63i
Step-by-step explanation:
Multiply using the FOIL method, then combine the real and imaginary parts of the expression.
Hope this helps! :D
Samuel buys 3 4K TVs for $1200 each. There is a shipping charge of $90 to have all 3 TVs delivered to his house
How much does Gordon pay in total?
independent variable:
dependent variable:
function:
solve the function:
Answers
Answer:
Note!! if someone else answers, their answer is probably correct. I don't know functions that well. also, I'm assuming here that Samuel and Gordon are the same person.
Gordon/Samuel pays: 3690$
independent variable: the amount of TVs you buy
dependent variable: the cost for each tv
function: f(x) = 1200x + 90
solve the function: hopefully someone else can answer this!
if I made a mistake or misunderstood something, please let me know!
Thanks in advance!
filler filler filler filler filler
Answers
Answer:
C
Step-by-step explanation:
The base number is 2, and it's being multiplied 7 times, so 7 is the exponent
Hope this helps!
Which values of a, b, and c correctly complete the division? One-fourth divided by StartFraction 5 Over 6 EndFraction = StartFraction 1 Over a EndFraction times StartFraction b Over c EndFraction a = 4, b = 5, c = 6 a = 1, b = 6, c = 5 a = 1, b = 5, c = 6 a = 4, b = 6, c = 5
Answers
Answer:
a = 4, b = 6 and c = 5
Step-by-step explanation:
It is given that,
[tex]\dfrac{\dfrac{1}{4}}{\dfrac{5}{6}}=\dfrac{1}{a}\times \dfrac{b}{c}[/tex]
We know that,
[tex]\dfrac{\dfrac{a}{b}}{\dfrac{c}{d}}=\dfrac{a}{b}\times \dfrac{d}{c}[/tex]
So,
[tex]\dfrac{1}{4}\times \dfrac{6}{5}=\dfrac{1}{a}\times \dfrac{b}{c}[/tex]
If we compare both sides of the equation we get,
a = 4, b = 6 and c = 5
Hence, these are the values of a,b and c.
Answer:
The simple and easy answer is D
Step-by-step explanation:
What do the zero exponent and negative exponents properties mean
Answers
0
,
the result is
1.
Mathematicians debate the value of
0
0
.
Some say it's
1
,
and some say it's undefined.
Here are some examples of the Zero Power Rule. Notice it works for numbers and for variables.
1
0
=
1
(
153
+
x
)
0
=
1
,
if
x
≠
−
153
(
x
+
y
+
z
)
0
=
1
,
if
x
+
y
+
z
≠
0
So when
a
≠
0
,
why does
a
0
=
1
?
Why does the Zero Power Rule hold? Here's one way to think about it:
a
0
=
a
n
−
n
Then, by the quotient rule for exponents, we can write this as:
a
n
−
n
=
a
n
a
n
Then this becomes a problem about dividing fractions. Since the numerator and the denominator are both the same this becomes
1
.
a
n
a
n
=
1
A negative exponent means how many times to divided by the number
Help me please what is 2+2 please help me.
Answers
Answer:
6969694204206969
Step-by-step explanation:
lololololololol
how many solution 7(y+3)=5y+8
Answers
Answer:
there is only one it is y=-6.5
Step-by-step explanation:
Estimate the product. Then find the exact product.
7.9(10.1)
estimated product = 80, exact product = 7.97
estimated product = 80, exact product = 79.79
estimated product = 80, exact product = 797
estimated product = 80, exact product = 7,979
Answers
Answer:
79.79
Step-by-step explanation:
BRAINLIEST ANSWER! I NEED HELP ASAP!!
Answers
Answer:
The answer is in the picture. I believe it is correct :)
Answer:
yep i checked it too its right