A textbook store sold a combined total of 350 history and physics textbooks in a week. The number of physics textbooks sold was 86 less than
the number of history textbooks sold. How many textbooks of each type were sold?
What does the expression l∙w represent
Jaquan practices soccer every three days. He practices basketball every five days Jaquan practiced both today. How many days until he practices both
Answer: He will practice both on every 15 days.
Step-by-step explanation:
Given: Jaquan practices soccer every 3 days.
He practices basketball every 5 days Jaquan practiced both today.
The number of days until he practices both = Least common multiple of 3 and 5
= 3 x 5 [Both are primes]
= 15
Hence, he will practice both on every 15 days.
Least common multiple of two numbers p and q is the smallest number that is divisible by both p and q.
A 3-gallon container of window cleaner costs $30.72. What is the price per quart?
Answer: The answer to your question is: 1 quart = $2.56
Step-by-step explanation: data
3-gallon cost = $30.72
cost of 1 quart = 2.56
Rule of three
1 gallon --------------- 4 quarts
3 gallons --------------- x
x = 12 quarts
12 quarts --------------- $30.72
1 quart ---------------- x
x = 1x 30.72 / 12 = $ 2.56
plz help
please do this plz plz plz
Use scientific notation to estimate the number of inches in 1,225 miles. Include all calculations in your final answer. 1 inch =1578x 10-5 miles
Answer: (7.129)*10^(7) inches.
Step-by-step explanation:
We know that:
1 inch = 1.578*10^(-5) miles.
If we divide both sides by 1.578*10^(-5), we get:
(1/1.578*10^(-5)) inches = 1 mile
63,371.36 inches = 1 mile
Now, we have 1,225 miles, this is equal to 1,125 times 63,371.36 inches
Then 1,225 miles writen in inches is:
1,125*(63,371.36 inches) = 71,292,780 inches.
Now, to write this in scientific notation, we need to count the number of decimals between the first one at the left, and the decimal point.
In this case we have 7 decimals.
Now, let's take the first 4 decimals, (7129) and write a decimal point after the first one:
(7.129)
Now let's multiply this by then to the power of 7 (where 7 is the number of decimals we found above).
Then the scientific notation of 71,292,780 inches. is:
(7.129)*10^(7) inches.
complete the equation of this line in slope-intercept form y= _x-1
Answer:
it will be 3 hope that helps
3. For which equation is the ordered
pair (2,8) a solution?
A y=32-3 Cy=3x + 2
B y=x-6 Dy=22 – 14
Answer:
C
Step-by-step explanation:
y = 3x + 2
Substitute the values
8 = 3(2) + 2
8 = 6 + 2
8 = 8
Equation is true, therefore a solution
can someone please help me, ill give brainliest plus points!
Answer:
9 is the correct answer all the best
Step-by-step explanation:
(x + 0.5)/6 = 19/12
2(x + 0.5) = 19 (multiply 12 on both sides)
x + 0.5 = 9.5 (divide 2 on both sides)
x = 9 (subtract 0.5 on both sides)
The answer is 9.
What is the closure property of multiplication for rational
expressions? Explain why rational expressions are
closed under multiplication.
Answer:
The closure property states that for any two rational numbers a and b, a × b is also a rational number. The result is a rational number. So rational numbers are closed under multiplication.
Step-by-step explanation:
brainliest plzzzzzz
Closure property under multiplication states that any two rational numbers' product will be a rational number.
What is the closure property of multiplication?Closure property states that when a set of numbers is closed under any arithmetic operation such as addition, subtraction, multiplication, and division and is performed on any two numbers of the set with the answer being another number from the set itself. This property is applicable for real numbers, whole numbers, integers, and rational numbers.
Closure property under multiplication states that any two rational numbers' product will be a rational number, i.e. if a and b are any two rational numbers, ab will also be a rational number.
Example: 2/3 × 3/5 = 2/5
Here, 2/3 and 3/5 are rational numbers, so 2/5 also rational number.
Therefore, closure property under multiplication states that any two rational numbers' product will be a rational number.
Learn more about the closure property here:
https://brainly.com/question/29798485.
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Find the exterior angle measure:
Answer:
59 degrees
Step-by-step explanation:
The total amount of degrees for a triangle must add up to 180 degrees.
74 + 47 = 121
180 - 121 = 59
Thus meaning the missing exterior angle measure is 59 degrees.
I hope this helped! :)
CAN YOU MARK ME BRAINLIEST PLEASE.
Hey there ...here is ur answer ..
Please mark me as brainliest if u find it helpful ..
Thank u
Felipe runs each lap in 8 minutes. He will run at most 72 minutes today. What are the possible numbers of laps he will run today?
Answer: 9 laps
Step-by-step explanation:
72 divided by 8 = 9
Antonio orders an iPhone case off of Amazon for $27. He has to pay an additional 3% for shipping and handling. How much will his total bill be?
Answer:
We conclude that total cost/bill will be: $27.81
Step-by-step explanation:
Given
The cost of an iPhone case = $27
Additional expense = 3% = 3/100 = 0.03
To determine
Total bill = ?
The expense amount can be calculated by multiplying the cost of an iPhone case by the additional expense
i.e.
Expense Amount = cost of an iPhone case × additional expense
= 27 × 0.03
= $0.81
The total cost is calculated by adding the expense amount and the original cost of an iPhone case.
i.e.
Total cost/bill = Expense Amount + cost of an iPhone case
= $0.81 + $27
= $27.81
Therefore, we conclude that total cost/bill will be: $27.81
How do i turn a line graph into a equation
Answer:
Read lol.
Step-by-step explanation:
Ok for example with the graph below. You want to find the slope. The slope of this graph is 4/5, because I did the technique rise over run. You want to find a point on the line that is in the middle of a square and then find another point and measure. Go up until it meets the other and then go left or right depending on the direction of the line.
After you find the slope you want to find the y-intercept. To find the y-intercept take any point on the line and plug it into this formula with the slope: y=mx+b
So I took the point (0,3): 3=(4/5)(0)+b
Solve: 3=0+b
3=b
And then wen u have all the right material for your equation, you can plug it all in, which gets me: y=4/5x+3
Use any order, any grouping to write an equivalent expression: 3(2x) + 4y(5) + (4 x 2 x z)
Answer:
We conclude that the equivalent expression is:
[tex]3\left(2x\right)+4y\left(5\right)+\left(4\times \:2z\right)=6x+20y+8z[/tex]
Step-by-step explanation:
Given the expression
[tex]3\left(2x\right)+4y\left(5\right)+\left(4\times \:2z\right)[/tex]
Remove parentheses: (a) = a
[tex]=3\times \:2x+4\times \:5y+4\times \:2z[/tex]
Multiply the numbers: 3 × 2 = 6
[tex]=6x+4\times \:5y+4\times \:2z[/tex]
Multiply the numbers: 4 × 5 = 20
[tex]=6x+20y+4\times \:2z[/tex]
Multiply the numbers: 4 × 2 = 8
[tex]=6x+20y+8z[/tex]
Thus, we conclude that the equivalent expression is:
[tex]3\left(2x\right)+4y\left(5\right)+\left(4\times \:2z\right)=6x+20y+8z[/tex]
Given that
R=9x+8y
Find x when y=8 and R=4
Give your answer as an improper fraction in its simplest form.
Answer:
[tex]-\frac{20}{3}[/tex]
Step-by-step explanation:
[tex]R=9x+8y\\\\4=9x+8(8)\\\\9x+8(8)=4\\\\9x+64=4\\\\9x+64-64=4-64\\\\9x=-60\\\\\frac{9x=-60}{9} \\\\x=-\frac{60}{9}=\boxed{-\frac{20}{3}}[/tex]
Hope this helps.
Find the (a) GCF and (b) LCM of 16 and 20.
Answer:
a) 4
b) 80
Step-by-step explanation:
N/A
Explain how the unit rate and slope of a proportional relationship are related to each other
The relationship between unit rate and slope can be found by forming the equation of a straight line.
How to find the proportional relation between two quantities?The two quantities are said to be proportional when the ratio of each of their values are equal.
It can be of two type direct or indirect.
For direct relation the ratio is greater than one for indirect it is less than one.
The example to explain the given case is as follows,
The price and number of pens are proportional to each other.
Suppose the cost of y pens be x.
And, the cost for each pen is m.
Then, the cost for each pen can also be found by the ratio as,
m = y/x
=> y = mx
Which represents a straight line having slope m.
Thus, the unit rate and slope are the equivalent things.
Hence, the unit rate and slope of a proportional relationship are related through the equation of a straight line.
To know more about proportional relation click on,
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Determine if the following triangle is a right triangle or not using the Pythagorean Theorem Converse. Triangle with side lengths of: 10 m, 8 m, and 14 m
False, these measures do not form a right triangle.
True, these measures do form a right triangle.
Answer:
False
Step-by-step explanation:
[tex]{a}^{2} + {b}^{2} = {c}^{2} \\ {10}^{2} + {8}^{2} = {14}^{2} \\ 100 + 64 = 196 \\ 164 < 196[/tex]
These measures do not form a right triangle, but an obtuse triangle.
hii please help i’ll give brainliest if you give a correct answer
Answer:
x * 3/8(s) = 5/4
5/4 ÷ 3/8(s) = x
Step-by-step explanation:
Answer:
Step-by-step explanation:
How many 3/8 are in 5/4? We can set this number as x. Therre are x number of 3/8 that make up 5/4:
Therefore the PART A is: x* 3/8 = 5/4
On the other hand, 5/4 / 3/8 = x (this is just the reverse of what I mentioned earlier)
I hope this helps! :)
520 feet in 16 seconds
Write the following rate as a unit rate
Please help Asap
Answer:
520 per 16 seconds.
Step-by-step explanation:
95 km = ___ cm im giving brainiest, show work pls
Answer: 9500000
Step-by-step explanation: 95 × 100000 = 9500000
*Multiply the value by 100000*
Can ANYONE help write this in slope intercept form??
3х - y = -3
Answer:
y=3x+3
Step-by-step explanation:
3x-y=-3
-y=-3x-3
y=3x+3
If you can please help me on 6,7,8 that would be amazing thank you!
Answer:
6. X=12 7. X=11 8. X=16Step-by-step explanation:
6. Complementary angles add up to 90 degrees
m<S is 52
90-52= 38
m<R is 38
38=3x+2
-2
3x=36
x=12
7.
Lines are always equal to 180
(5x+1)+(12x-8)=180
17x-7=180
+7
17x=187
x=11
8.
These angles are equal to each other '
79= 4x+15
-15
64=4x
x=16
Hope this Helps!
so you may see more than one post abt these bc its due at 11:59 lol
Answer:
quadrilateral
<3
Step-by-step explanation:
The track coach is putting shoes into bins. if she puts 6 shoes into each of b bins for a total of 54 shoes, how many bins, b, does she have? Solve 6b = 54
For b
Answer:
9
Step-by-step explanation:
[tex]54 \div 6 = 9[/tex]
[tex]b = 9[/tex]
The coach will have 9 bins
you currently pay $10,400 a year for grounds maintenance. it is predicted that competition in the marketplace will force a 3% reduction in price for the next 3 years. with this trend, what will the price shrink to in three years?
a. $3,249
b. $9,404
c. $9,492
d. $10,297
Answer:c= the price will be of $9, 492
Step-by-step explanation:
Hope this helps
Make x the subject of the formula y = m x + b
Tom ordered some books online and spent a total of $75. Each book cost $6 and he paid a total of $3 for shipping. How many books did he buy? (a) Write an equation that could be used to answer the question above. First, choose the appropriate form. Then, fill in the blanks with the numbers 75, 6, and 3. Let b represent the number of books. (b) Solve the equation in part (a) to find the number of books.
Answer:
a)
_b+_=_
6B+3=75
B)
He ordered 12 books
Step-by-step explanation:
so each book (b) costs $6. he payed $75 total including the $3 shipping price
That gets us:
6b+3=75
6b=72
b=12
Therefore, Tom ordered 12 books
please help!
Find the value of x.
3
х
x= [?]
Enter
[tex]6^{2}=3*x\\36=3x\\x=12\\[/tex]
