I need to know the answer
what is 7.8764 rounded as the nearest cent? WILL MARK BRAINLIEST!
Answer:
$7.88 i believe
Step-by-step explanation:
the coefficients of the expression.
−30 + 2p − 9z
-30,2
2,9
-30,2,-9
2,-9
Adam and Barb planned a used book sale for the weekend so they gathered their books and agreed on a price for hardbacks and a lower price for paperbacks. Adam sold 14 hardcover books and 20 paperbacks and earned $234 for his efforts. Barb sold 15 hardcover books and 9 paperbacks. Barb made $201. How much did they charge for each hardcover book and for each paperback?
You must show your work.
1) Mathematically what kind of problem is this called? (What concept did you apply to this problem that allowed you to solve it?)
2) Set up the problem showing the equations you’ll use. Please make sure you label or explain what your variables mean.
3) Show the math work to arrive at the answer. Please make it clear which price is hardcover and which is paperback.
Answer: hardcover books x=11 and paperbacks y=4
Step-by-step explanation:
14x+20y=234
15x+9y=201
Multiply the top equation by 9 and the bottom equation by 20 so the outcome of both equations would be 126x+180y=2106 and 300x+180y=4020 then you subtract the two equations once you do that you get 174x=1914, and the y variable cancels out, once you divide 174 from 1914 you get 11x. So the answer for how much hardcover books cost is 11 dollars. Now we have to find the y variable which we can just plug in 11 (x) into the equation. So 15(11)+9y=201 we get 165+9y=201, subtract 165 from both sides and we get 9y=36 and divide 9 from both sides and we get 4 so y=4 the cost of paperbacks are 4 dollars
Find the value of √45 × √20
Answer:
30
Step-by-step explanation:
√45 × √20 = 30
1. Five gallons of lemonade cost $8.00, which is
a rate of _____per____.
Answer:
1. $1.60
2. gallon
Step-by-step explanation:
Each gallon of lemonade would cost $1.60.
The rate is $1.60 per gallon.
Hope it helps!
Hey there!
[tex]Answer: \boxed{1.60 \text{ per } gallon}[/tex]
[tex]Explanation:[/tex]
If 5 gallons cost 8.00, we will need to divide to find the amount of 1 gallon each.
$[tex]$8.00/5=1.60[/tex]
So that means that each gallon was $1.60. So the answer to your question is:
[tex]\boxed{1.60 \text{ per } gallon}[/tex]
Hope this helps!
[tex]\text{-TestedHyperr}[/tex]
Jason jogs around a circular track at an average rate of 3 laps in 5 minutes. At this rate, how many laps can Jason complete in 35 minutes?
Answer:
21 laps
Step-by-step explanation:
35 divided by 5 equal 7
3 times 7 = 21
hope this helps you ;)
pls give me brainlest :)
The figure is transformed as shown in the diagram. Describe the transformation.
A) reflection, then rotation
B) rotation, then reflection
C) reflection, then dilation
D) translation, then dilation
Answer:
B) Rotation, then Reflection
Which of the following would not have a positive exponent when written in scientific notation HELP PLEASE!!!!
A.5600,000
B.0.0023
C.23
D.560
SOMEONE HELP!!
What is an exact solution for
[tex]m \sqrt{14} [/tex]
Answer: Choice B) [tex]\sqrt{14}[/tex]
We have some value m and we're squaring it to get [tex]m^2[/tex]
To undo this and isolate m, we apply the square root to both sides
[tex]m^2 = 14\\\\\sqrt{m^2} = \sqrt{14}\\\\|m| = \sqrt{14}\\\\m = \sqrt{14} \text{ or } m = -\sqrt{14}[/tex]
There are two solutions here. This is similar to how there are two solutions in something like [tex]x^2 = 25[/tex] (those two solutions being x = 5 and x = -5). Squaring any negative number leads to a positive result because
negative times negative = positive.
Round 2.93 to the nearest whole number.
Answer anyone ?
Answer:
3
Step-by-step explanation:
2.9 is closest to 3
Answer:
3
Step-by-step explanation:
2.93 rounded to the nearest whole number is 3.
Any values between 2.0 and 2.5 get rounded to 2, while any values between 2.5 (incl. 2.5) to 3.0 get rounded to 3.
Examples:
2.93 -> 3
2.73 -> 3
2.5 -> 3
2.49 -> 2
2.35 -> 2
2.1 -> 2
What are the answers ?
Answer:
1:d 2:a 3:a 4:a 5:c 6:a 7:d 8:d 9:a 10:b
Step-by-step explanation:
(8w)^2 without parentheses
Answer:
I believe the answer would be 64w2.
Step-by-step explanation:
8 squared is 8 x 8, which equals 64, and then w squared is just w2, since we don't know what it is. Put them together, and the answer is 64w2.
3 - 4x = 6x + 93
Please help with this question
Answer:
-9
Step-by-step explanation:
X=-9
Step-by-step
Simplifying
3 + -4x = 6x + 93
Reorder the terms:
3 + -4x = 93 + 6x
Solving
3 + -4x = 93 + 6x
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-6x' to each side of the equation.
3 + -4x + -6x = 93 + 6x + -6x
Combine like terms: -4x + -6x = -10x
3 + -10x = 93 + 6x + -6x
Combine like terms: 6x + -6x = 0
3 + -10x = 93 + 0
3 + -10x = 93
Add '-3' to each side of the equation.
3 + -3 + -10x = 93 + -3
Combine like terms: 3 + -3 = 0
0 + -10x = 93 + -3
-10x = 93 + -3
Combine like terms: 93 + -3 = 90
-10x = 90
Divide each side by '-10'.
x = -9
Simplifying
x = -9
Someone please help me, I don't understand these types of questions.
Answer:
a = h/5
Step-by-step explanation:
If you had the equation ...
10 = 5a
and you wanted to find the value of the variable, you would divide by its coefficient:
10/5 = (5a)/5
2 = a
__
Here, we have replaced '10' with 'h'. The same (single) step applies: divide by the coefficient of 'a'.
h = 5a
h/5 = a
To put this in "a = " form, swap the sides of the equal sign:
a = h/5
_____
Literal equations just use different symbols (h instead of 10, here). The operations are the same.
Find the slope of the line.
Answer:
The answer is -2
Step-by-step explanation:
It goes down 2 and the line is to the left, meaning its negative :)
WILL GIVE BRAINLIEST!!!
Cassandra rents a bicycle while on vacation.
The table below shows the cost of renting a bicycle y, per hour, x.
What is the slope (m) that is defined by the table?
Explain using 2-3 sentences or show each step.
Answer:
m = 6
Step-by-step explanation:
Slope Formula: [tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]
Simply choose 2 points and plug them into the formula to find slope m:
(1, 20)
(2, 26)
[tex]m=\frac{26-20}{2-1}[/tex]
[tex]m=\frac{6}{1}[/tex]
m = 6
round 24,732 to the
nearest thousand.
Answer:
25,000
Step-by-step explanation:
7 is greater than 5 so we need to round UP
Write an equation models the following statement:
17 less than h equals 42
Answer:
17 < h = 42
Step-by-step explanation:
Hoped this helped! :)
we cannot have a negative number for x (its against the laws of math), so the domain would be all non-negative numbers
Answer:
h - 17 = 42
Step-by-step explanation:
I know this because it was the answer on quizziz
pls help me 20 points
Answer:
Step-by-step explanation:
Its a real number
Answer:
integer
Real Number
Rational
Step-by-step explanation:
Please someone answer asap
Answer:
(-inf,6]
Step-by-step explanation:
in new jersey, the highest elevation is 1 803 feet above sea level and the lowest elevation is -2 below the sea level. what is the deficit in the elevation?
Answer:
803
Step-by-step explanation:
trust your self
what is coefficient of the term 16x
Answer:
16
Step-by-step explanation:
Answer:
16
Step-by-step explanation:
We are given the term:
16x
We want to find the coefficient.
A coefficient is a constant that a variable is multiplied by. Essentially, it is the number in front of the variable.
The variable in the term is x. The number that precedes the variable is 16. Therefore, the coefficient of the term must be 16.
Simplify by using the distributive property:
[tex]\huge\boxed{\sf{Hi\:there!}}[/tex]
The Distributive Property states that
a(b+c)=ab+ac
4(s+5)
4s+20
2(3r-12)
6r-24
-3(16-3d)
-48+9d
[tex]\huge\boxed{\bf{Hope\:this\:helps!}}[/tex]
[tex]\Large\bold{Good\:luck!}[/tex]
[tex]\huge\mathfrak{LoveLastsAllEternity}[/tex]
why is h²=p²+b²plz somebody help me
Answer:
This formula is related to Pythagorus theorem which states that in a right angled triangle square of hypotenuse is equal to sum of the squares of other two sides.
In other words, C²=B²+A²
32. John collects postcards. He buys them in
packages of 8. He currently has 96 postcards.
Write an equation to model the size of his
collection after buying x packages.
A) 8x = 96
Cy= 96 + 8
® y=96x + 8 Dy=8x + 96
twelve is greater than or equal to a 5 times a number n
Answer:
n <= 12/5
Step-by-step explanation:
12 >= 5*n
5*n <= 12
5*n/5 <= 12/5
n <= 12/5
Lupe put $12,000 in a certificate of deposit that gained interest at a rate of 6.5%. How much interest did the account gain after 3 months?
Answer:
$195
Step-by-step explanation:
We use the simple interest formula.
I = Prt
I = Interest
P = Principal (initial value)
r = Interest rate
t = Time (years)
P = $12,000
r = 6.5% which we convert to a decimal by dividing by 100 6.5/100 = .065
t = 3 months which we convert to years by dividing by 12 3/12 = 1/4 = .25
Plug in the values
I = 12000 * .065 * .25
I = $195 interest gained
Answer:
195
Step-by-step explanation:
3 month is .25 years
6.5/100 = .065
12000 x .065 x .25 = 195
Determine whether the pair of lines appear to be parallel or perpendicular.
.. There’s just two lines like this \\
Answer:
option c
Step-by-step explanation:
If 2 lines are like this " \\ " , then they are separated from each other with same distance & will never ever intersect
If the value of 2x is 2, then what is the value of x?
12 ?
Answer:
1
Step-by-step explanation:
Answer:
x=1
Step-by-step explanation:
work backwards.
2x=2
divide the constant by the product
2/2=1
so x=1
