Answer:
There are 20 pennies, 33 nickels and 11 quarts.
Step-by-step explanation:
Total number of coins = 64 Amount of money = $4.60 = 460 cents
x = pennies y = nickels x = quarters
y x 3 = x
x + y + z = 64 coins
x + 5y + 25z
x + 4z = 64
x + 40z = 460
x = 20 z = 11
y = 3z = 33
There are 60 pupils in the library. The boys are 14 more than the girls. How many girls are there in the library?
Answer:
32
Step-by-step explanation:
Trust me its hard to explain.
Which expression is equivalent to (9+52) - 3(6x)?
A.) -23x+9
B.) -13x+9
C.) 11x+6
D.) 14x+12
evaluate the expression when c=4and d=6
36/c +d
Answer:
15
Step-by-step explanation:
36/c + d = 36/4 + 6 = 9 + 6 = 15
Calculate Unit Rates
please help
Find the unit rate for each problem.
Answer:
1. 3 tacos per person
2. 8 chairs per table
3. 6 avocados per bag
Step-by-step explanation:
1) Divide 45 by 15 to get the unit rate: # of taco per person.
45 = 15x
45/15 = 15x/15
3 = x
3 tacos per person
2) Divide 72 by 9 to get the unit rate: # of chairs per table.
72 = 9x
72/9 = 9x/9
8 = x
8 chairs per table
3) Divide 42 by 7 to get the unit rate: # of avocados per bag.
42 = 7x
42/7 = 7x/7
6 = x
6 avocados per bag
According to the Rational Root Theorem, the following are potential roots of f(x)=9x2−3x−2.1,
−1,23,19
Which is an actual root of f(x)?
Step-by-step explanation:
9x2 -3x -2 factors to (3x-2)(3x +1)
solve 3x-2 =0 and 3x+1=0
making the roots -1/3 and 2/3
4. On Monday, a department store sold 30 white and blue sweaters in total. If a white sweater is 398 baht, and a blue sweater is 420 baht, the total sales are 12,424 baht. How many sweaters in each color did this department store sell?
The number of white sweaters will be 8 while the number of blue sweaters will be 22.
Let white sweaters be represented by w.Let blue sweaters be represented by bTherefore, the equation to solve the question will be:
b + w = 30 .....i
420b + 398w = 12424 .... ii
From equation i, b = 30 - w
Since 420b + 398w = 12424
420(30 - w) + 398w = 12424
12600 - 420w + 398w = 12424
Collect like terms
- 420w + 398w = 12424 - 12600
-22w = - 176
w = 176/22 = 8
Since b + w = 308
b = 30 - 8 = 22
Therefore, there are 8 white and 22 blue sweaters.
Read related link on:
https://brainly.com/question/25734188
15% of the skittles in andy's bag are green. if 9 of them are green, how many skittles are in the bag
Answer:
60
Step-by-step explanation:
9/15 = 0.60
0.60 * 100 = 60
60 skittles are in the bag
Dillon earned $170 working 20 hours at the carwash what was his hourly rate of pay?
To find this answer, we must divide the amount Dillion earned, by the time he put into his work.
170 / 20 = 8.5
Therefor, we now know that Dillion makes $8.5 an hour.
Can anyone help me with this question?
Answer:
sorry I can't I am too young
Step-by-step explanation:
Fill in the blanks with one of the following symbols ∈, ∉, ⊆,
⊆, ⊂, or ⊄ to make each statement true.
6 ______{f, g. h, i,j, k, l}
Solve for x
………………..
PLEASE HELP IT’S DUE TMR!!
Answer:
(a) 1.0792 x 10³
(b) 3.769 x 10³
(c) 9.985 x 10³
This should be the answer to the problems, the rounding part got me confused for a second.
Significant digits are numbers after the decimal that aren't 0. So the 1.0792, the 0 isn't a significant digit.
I need the answer FAST
Answer:
x = -9, 4
Step-by-step explanation:
The sides are marked congruent, so you have ...
x^2 +5x = 36
Subtracting 36 puts this in standard form:
x^2 +5x -36 = 0
To factor this, you need to find factors of -36 that have a sum of 5.
-36 = (-1)(36) = (-2)(18) = (-3)(12) = (-4)(9) = (-6)(6)
The sums of these factor pairs are 35, 16, 9, 5, 0.
The pair with a sum of 5 is (-4)(9), so the factorization of the quadratic is ...
(x -4)(x +9) = 0
The solutions are the values of x that make the factors zero:
x = 4, x = -9
Both of these solutions work in this problem.
Annette's mom made snacks for her party. She made 181 snacks and there are 27 students. How many more snacks does she need to make in order for each student to receive 7 snacks?
181 snacks
27 students
to find:How many snacks she need to make in order for each student to receive 7 snacks.
solution:[tex]7 \times 27[/tex]
[tex] = 189[/tex]
[tex]189 - 181[/tex]
[tex] = 8[/tex]
therefore, she needs to make 8 more snacks in order for each student to receive 7 snacks.
You bought 4 hamburgers you gave a cashier $50 bill and get $22 change how much was each hamburger
Answer:
$7
Step-by-step explanation: Five step plan
1. How much is each hamburger?
Variables
Price paid : $50
Change: $22
No. of hamburgers: 4
2. Price for all hamburgers. 50-22 = 28
3. y(price of each hamburger) = 28/4
4. y = 7
5. The price of each hamburger is 7
solve pls brainliest
The answer for a is +2.
The answer for b is +256.
Answer ASAP: log base 4 of 405
please help me with this. I will give brainliest to whoever gets the question right. attachment below.
Answer:
22100
Step-by-step explanation:
First you would add the truckloads of concrete for both playgrounds (3 5/8 + 3 5/8 + 1 9/10). Then you would divide that by 1/2. Finally multiply that number by 2000. (Pls mark me the brainliest)
Find the value of x for which m ll n
Answer:
x=54
Step-by-step explanation:
2x+13=3x-41
-13 -13
__________
2x=3x-54
-3x -3x
__________
-1x=-54
__ __
-1 -1
X=54
I Hope this helped <3
Answer:
x = 54
Step-by-step explanation:
If m||n, these two angles will be equal in degrees
3x - 41 = 2x + 13
3x - 2x = 13 + 41
x = 54
7^-12 x 7^5 Simplified
In an experiment, the temperature of a sample is measured as 16 degrees Celsius.
If the percent error is 0.75%, how can you report the temperature of the sample using the absolute error and the actual temperature value in degrees Celsius?
-16±0.12
-16±12
-16±0.047
-16±4.7
Answer: T=16 ± 0.12 ° CA Aw
Step-by-step explanation:
if (x-10) is a factor of f(x), which of the following must be true? (50 points)
A. Neither x= -10 or x=10 are roots of f(x)
B. f(-10)=0
C.f(10)=0
D. Both x=10 and x=-10 are roots of f(x)
Answer:
C, f(10)=0
Step-by-step explanation:
Just replace x-10 into f
need help please and thank you!!
Answer:
x=125
Step-by-step explanation:
Since the sum of the angles is 720 degrees, you can set up the following equation:
120+100+120+120+x+(x+10)=720
2x+470=720
2x=250
x=125
PLEASE HELP GEOMETRY IS SO HARD PLEASE
tell me if i need to add or delete an answer
Answer:
where is questions asking
What is meant by Sets ?
Answer:
In mathematics, a set is a collection of elements. The elements that make up a set can be any kind of mathematical objects: numbers, symbols, points in space, lines, other geometrical shapes, variables, or even other sets. The set with no element is the empty set; a set with a single element is a singleton.
A new bank customer with $3,000 wants to open a money market account. The bank is offering a simple interest rate of 1.3% How much interest will the customer earn in 30 years
We must use the simple interest formula which is: A = P(1+rt) where
A = output amount , P = initial amount, r = rate as a decimal, and t = time.
so in this case we would write:
A(30) = P(1+rt) = 3000(1 + 0.013(30)) = 4170
We then see that A(30) is equal to $4170 at 30 years.
There are four consecutive integers that add up to 22 what is the greatest integer
Answer:
7
Step-by-step explanation:
We can use the equation:
x + (x + 1) + (x + 2) + (x + 3) = 22
Combine like terms
4x + 6 = 22
Subtract 6 from both sides
4x = 16
Isolate x
x = 4
Plug in x
4 + (4 + 1) + (4 + 2) + (4 + 3) = 22
Solve
4 + 5 + 6 + 7 = 22
7 is the greatest integer
Twenty five less than two times x is equal to 6
I need to know the answer to 2 1/3 x 4/5
Answer:
Simplify the expression.
Exact Form:
28/15
Decimal Form:
1.8¯6
Mixed Number Form:
1 13/15
Step-by-step explanation:
Answer:
Step-by-step explanation:
Convert 2 1/3 to improper fraction
[tex]2\dfrac{1}{3}*\dfrac{4}{5}=\dfrac{7}{3}*\dfrac{4}{5}\\\\\\=\dfrac{7*4}{3*5}\\\\\\=\dfrac{28}{15}\\\\= 1\dfrac{13}{15}[/tex]
Ruth wants to purchase a new video game that costs $59.00 and several bags of chips that sell for $1.99 each. She can spend no more than $75.00. Which inequality and its solution represents her possible purchase?
Answer:
1.99c + 59 ≥ 75, where c ≥ 8.04
Step-by-step explanation: