Answer: 9
Step-by-step explanation: there are 36 students in total. Since 25% of students wore a jacket, you would multiply 36 by 1/4 which gets you 9, so 9 students wore jackets
Jason sold half of his comic books and then bought eight more. He now has twelve. How many did he begin with ?
Answer: 8
Step-by-step explanation:
8/2 = 4 + 8 = 12
What fraction of an hour is 8 minutes?
Give your answer in its simplest form.
Answer:
2/15
Step-by-step explanaion
4/30 simplified is 2/15
Simplify the expression by
distributing, then combining like
terms!
4 (3x + 2) - 6
Answer:
[tex]\boxed {12x + 2}[/tex]
Step-by-step explanation:
Solve the following expression:
[tex]4(3x + 2) - 6[/tex]
-Use Distributive Property:
[tex]4(3x + 2) - 6[/tex]
[tex]12x + 8 - 6[/tex]
-Combine like terms:
[tex]12x + 8 - 6[/tex]
[tex]\boxed {12x + 2}[/tex]
Answer:
[tex]12x+2[/tex]
Step-by-step explanation:
The first step is to distribute the 4 to the parenthesis. This turns the equation into:
[tex](12x+8)-6[/tex]
We can remove the parenthesis now. Also, now we combine like terms. There are no other variables in the equation, so we leave the 12x alone. Combine the +8 and the -6 to get +2. This leaves the equation at:
[tex]12x+2[/tex]
XY has endpoints at X(2, -3) and
Y(-1, 2). What is the length of XY?
A. 2 units
B. 10 units
C. 34 units
Answer:
B.
Step-by-step explanation:
I did this, but I'm not 100% sure.
HELP PLEASE ITS DUE IN 10 MIN Use algebraic strategies to solve for x.
Check your solutions algebraically and identify any extraneous solutions. Write it step by step.
Answer:
x = 4, x ≠ -1
Step-by-step explanation:
√3x + 4 = x
(√3x + 4)² = x² (Square both sides to get rid of the radical.)
3x + 4 = x²
0 = x² - 3x - 4 (Set everything to 0 by moving everything to one side.)
0 = (x - 4)(x + 1) (Factor.)
x = 4 x = -1
Now we need to check for extraneous solutions:
√3(4) + 4 = 4
√12 + 4 = 4
√16 = 4
4 = 4
√3(-1) + 4 = -1
√-3 +4 = -1
√1 = -1
1 ≠ -1
-1 is an extraneous solution.
7 1/2÷(4 1/2- 5 1/8) =
Answer:
-12
Step-by-step explanation:
What is square root of 500
Answer: The answer is 22.36....
Step-by-step explanation:
Felipe has a flower bed with area 25/4 ft squared. He expands the flower bed to have area 75/4 ft squared. How many square feet of space does the larger flower bed have for every square foot of the smaller flower bed?Show your work.
Answer:3 square feet
Step-by-step explanation:
24\4 = 6 1/4
75/4 = 18 3/4
18 3/4 divided by 6 1/4 = 3
Find the distance between (2, -5) and (-2, 1). Round to the nearest tenth
Answer:
7.2
Step-by-step explanation:
PLEASE HELP ME I'M HAVING A TERRIBLE DAY AND MY MATH IS DUE IN 2 HOURS AND ALL I NEED IS THIS
Fatima earned an 85 average in her science class. The average is based on 6 tests that she takes over the span of the marking period. On her first four tests she earned an 83, a 78, an 87, and an 80. On her sixth test she scored 8 points more than on her fifth test. Let x be the score Fatima received on her fifth test. Set up an equation using x that models this scenario. Solve the equation and state what Fatima earned on her fifth and sixth tests.
please help me
Answer:
84
Step-by-step explanation:
What integer represents the total charge of 7 electrons?
the integer that represents the total charge of 7 electrons is -1.The total charge of electrons is given by the formula:
total charge = number of electrons x charge of each electron
what are electrons ?
Electrons are subatomic particles that carry a negative electric charge. They are one of the fundamental particles that make up atoms, along with protons and neutrons. Electrons are found in shells or energy levels that surround the atomic nucleus
In the given question,
The total charge of electrons is given by the formula:
total charge = number of electrons x charge of each electron
The charge of an electron is a fundamental constant, which is equal to -1.602 x 10⁻¹⁹ Coulombs. Therefore, the total charge of 7 electrons can be calculated as:
total charge = 7 x (-1.602 x 10⁻¹⁹) C
total charge = -1.1214 x 10⁻¹⁸ C
Note that the charge of an electron is negative because it has an opposite charge to the positively charged protons in an atom. Therefore, the total charge of 7 electrons is also negative. To express this charge as an integer, we need to convert it to scientific notation and round to the nearest whole number. Rounding to the nearest whole number gives:
total charge = -1 x 10⁻¹⁸ C
Therefore, the integer that represents the total charge of 7 electrons is -1.
To know more about electrons, visit:
https://brainly.com/question/1255220
#SPJ1
A scientist receives a grant for $8,860,000. The
laboratory needs $12,000,000 for new renovations. How
much more money does the laboratory need for new
renovations? Write your answer in scientific notation.
Someone please help I need help!
Answer:
3140000
Step-by-step explanation:
12,000,000 - 8860000
Heather made $299 for 13 hours of work.
At the same rate, how much would she make for 18 hours of work?
Answer:
$414
Step-by-step explanation:
We know that Heather made $299 for 13 hours of work.
So, to find how much Heather will make for 18 hours of work at the same rate, we can write and solve for the following proportion:
[tex]\frac{299}{13}=\frac{x}{18}[/tex]
Notice that we align the rates vertically and the measurements horizontally (dollars in the numerator and hours in the denominator).
So, to find how much Heather will make for 18 hours, we will solve for x. Cross-multiply:
[tex]13x=5382[/tex]
Divide both sides by 13:
[tex]x=\$414[/tex]
So, Heather will make $414 for 18 hours of work.
And we're done!
The relationship between x and y is proportional. When x is 3, y is 51. What is the value of x when y is 204?
x = y
When,
3 = 51
x = 204
x = 204*3/51
x = 12
Is the quotient of
-8÷(-2) is positive or negative?
PLS HELP
If Ryan gives 4/9 of his 36 cards to Josiah, how many cards does he give Josiah?
Answer:
16 cards
Step-by-step explanation:
Answer:
Ryan gave 16 cards to Josiah.
Step-by-step explanation:
First we will divide 36 by 9.
36/9 = 4
We know that 1/9 of 36 is 4.
1/9 + 1/9 + 1/9 + 1/9 = ?
4 + 4 + 4+ 4 = ?
4 * 4 = 16
4/9= 16
Ryan gave 16 cards to Josiah.
Polygon H is a scaled copy of Polygon G using a scale factor of 1/4
Polygon H's area is what fraction of Polygon G's area?
Whats the answer
Answer:
[tex]\frac{1}{16}[/tex]
Step-by-step explanation:
Given the scale factor 1 : 4 , then
the area factor = 1² : 4² = 1 : 16
That is area of polygon H is [tex]\frac{1}{16}[/tex] area of polygon G
what do you think proof is
Answer:
proof is where you have something to explain/show what you saw to people when they don't believe you.
(2x + 3) + (1x + 2) =
Please Help Me! "Given ABC ~ ADE with AB = 2 Centimeters, and DE= 10 Centimeters" Whats the length of BC?
A. 6 2/3 centimeters
B. 5 Centimeters
C. 4 Centimeters
D. 6 Centimeters
f(x)+-3x+5 for f(-2)
Answer:
f(-2)=11
Step-by-step explanation:
f(-2)=-3(-2)+5
=6+5
=11
I need the values of A and B
Answer:
b=12 degrees and a = 168 degrees
Step-by-step explanation:
5/3x+6=2/9x
Please answer x as a fraction
Answer:
x = -4 2/13
x = -4.15384615385
x = -54/13
(they are all the same, just in different formats)
Step-by-step explanation:
(5/3x) + 6 = (2/9)x
first, make all "x"s have a common denominator
(5/3) = (15/9)
so
(5/3)x = (15/9)x
(15/9)x + 6 = (2/9)x
solve using inverse operations
(15/9)x + 6 = (2/9)x
-(2/9)x -(2/9)x
(13/9)x + 6 = 0
-6 -6
(13/9)x = -6
to get rid of the fraction, multiply the entire equation by the denominator
(13/9)x = -6
*9 *9
13x = -54
/13 /13
x = -4 2/13
x = -4.15384615385
x = -54/13
(they are all the same, just in different formats)
A number divided by three less two is at most two
Answer:
n ÷ (2 - 3) ≤ 2
Step-by-step explanation:
Let n be 'the number'
n is divided by 3 less than 2
n ÷ (2 - 3) is at most 2
n ÷ (2 - 3) ≤ 2
I hope this helps :)
RANDOM QUESTION!
How would I right the absolute value on my computer for an equation?? is there an alt code or a substitute?
Answer: On most computer keyboards, you can find the "|" symbol above the backslash, which looks like "
Step-by-step explanation:To type it, simply hold down the shift key and strike the backslash key.
Answer: Typing the Absolute Value Sign
this is for free right?
Step-by-step explanation:
On most computer keyboards, you can find the "|" symbol above the backslash, which looks like " ". To type it, simply hold down the shift key and strike the backslash key.
4) Oceanside Bike Rental Shop charges $17 plus $6 an hour for renting a
bike. Tim paid 59 dollars to rent a bike. For how many hours did he check
out the bike?
Answer:
he rode for 7 hours because 59-17=42 42 divided by 6 is 7. so Tim rode for 7 hours
Step-by-step explanation:
Answer:
7 hours
Step-by-step explanation:
6x7=42+17=59
question in above picture
explanation please not jusr answer
Answer:
x+16
Step-by-step explanation:
For this one the negative signs become positive because, if you multiply a negative number*a negative number it becomes positive. That is a rule.
[tex]-(-x-16)\\-1(-1x)-1(-6)\\x+16[/tex]
Answer:
C.) x+16
Distribute parentheses -(-x) - (-16)Apply minus-plus rulesx+16
:) Hope This Helps You :)
X
0 1 2 3 4
frequency 4 6 18 7 1
Based on the table, what is P (2 > 1)?
Leave your answer in decimal form to three places.
A fish tank is in the shape of a cube. Its volume is 125 ft?. What is the area
of one face of the tank?
Answer:
8455.1 gallons • 32006 liters
Step-by-step explanation:
please help me I really need it
Answer:
53/3
a
f
e
b
34
Step-by-step explanation:
