A classroom has 2 bookcases that weigh 135 pounds altogether. If they all weigh the same amount, how much does each bookcase weigh?
Can someone help me do this i need helpppp
Hats are on sale for 45% off. Phyllis uses the expression p−0.45p to find the new price of a hat that originally cost p dollars.Use the drop-down menus to complete each sentence.
Answer:
The expression p−0.45p can be simplified to 0.55 p.
This means Phyllis can find the new price of a hat by finding 55 % of the original price.
Step-by-step explanation:
The given expression describes that the price of the Hat would be 55% of the original price.
Given that,
Hats are on sale for 45% off. Phyllis uses the expression p−0.45p to find the new price of a hat that originally cost p dollars.
The percentage is the ratio of the composition of matter to the overall composition of matter multiplied by 100.
Here,
Given expression,
= p−0.45p
Simplify further,
= 0.55p
The above expression implies that the outcome is 55% of p, where p is the original price of the Hats.
Thus, the given expression describes that the price of the Hat would be 55% of the original price.
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(x+3)(x²-3x+9)-(54+x³)
Answer:
x² - 3x ≤ 54 m²
Step-by-step explanation:
Step-by-step explanation:
and ? what do we need to do with this ?
compress/simplify this ?
if that is true :
(x+3)(x²-3x+9)-(54+x³)
x³ - 3x² + 9x + 3x² - 9x + 27 - 54 - x³ = -27
Susan and Jim both babysit. Susan earns $15 for 2 hours and $30 for 4 hours. Jim’s charges are calculated using the equation t=7h+10 (t is the total and h is the hours) which statement is true
A.) Jim charges $7.00/hour, which is higher than Susan’s hourly rate
B.) Jim charges $10.00/hour, which is higher than Susan’s hourly rate
C.) Susan charges $7.00, which is equal to Jim’s hourly rate
D.) Susan charges $7.50, which is higher than Jim’s hourly rate
Please answer as soon a possible
Answer:
D.
Step-by-step explanation:
7h is the amount of money Jim makes per hour. You can find the amount of money Susan makes by dividing the amount she made to the hours:
15/2 = 7.50
Susan charges $7.50, which is higher than Jim's hourly rate. which is the correct answer would be a statement (D)
What is the equation?The equation is defined as mathematical statements that have a minimum of two terms containing variables or numbers that are equal.
To find the hourly rate for Jim, you can plug in different values for h (the number of hours) in the equation t = 7h + 10 and solve for t (the total). For example, if h = 1, then t = 7(1) + 10 = 17. This means that if Jim babysits for 1 hour, he charges $17.
If you divide the total amount that Jim charges by the number of hours he works, you get his hourly rate. In this case, the hourly rate is t/h = 17/1 = $17/hour.
To find Susan's hourly rate, you can divide the total amount that she charges by the number of hours she works. For example, if Susan babysits for 2 hours, she charges $15, so her hourly rate is $15/2 = $7.50/hour. If Susan babysits for 4 hours, she charges $30, so her hourly rate is $30/4 = $7.50/hour.
Since Susan charges $7.50/hour, which is higher than Jim's hourly rate of $17/hour, the correct statement is D.) Susan charges $7.50, which is higher than Jim's hourly rate.
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I have be stuck on this for a while pleeeeez help me with it.
Answer:
$88
Step-by-step explanation:
75+84+105 = 264
264/3 = 88
9(b - 1) = 63
what is b? show your work will give brainlyiest
The price of an item yesterday was $130. Today, the price rose to $299. Find the percentage increase.
130%
Step-by-step explanation:
(299 - 130)/130 × 100%
= 169/130 × 100%
= 169/13 × 10%
= 13 × 10%
= 130%
Hey guys what is the slope of this graph shown below. Please note that some of these points aren't going up by ones.
How do you get the answer to these two questions? I don’t understand
Answer:
Hey, so it's actually pretty simple I'll try my best to explain it properly!
Step-by-step explanation:
So for the first blue circle the line that goes to the middle that's the radius. And to solve the area you need to know the radius. The formula to solve the area is A = [tex]\pi[/tex] [tex]r^{2}[/tex] so what we would do its 3.14 times 6 times 6 or 3.14 times 36 which would give us the area! Now for circumference, the equation for that is C = 2[tex]\pi r^{2}[/tex] which would look like 2 times 3.14 times 6 times 6 or 2 times 3.14 times 36 and that would give you the circumference.
State the domain and any values that are excluded from the domain of the function.
f(x) = 2x-5/x-4
I give Brainliest!
Answer:
see explanation
Step-by-step explanation:
f(x) = [tex]\frac{2x-5}{x-4}[/tex]
The denominator cannot equal zero as this would make f(x) undefined.
Equating the denominator to zero and solving gives the value that x cannot be
x - 4 = 0 ⇒ x = 4 ← excluded value
Domain is x ∈ R , x ≠ 4
supose that the half-life of a cesium is 30 years. If there were initially 1000g of the substance,
a) give an exponential model for the situation
b) how much will remain after 200 years
After 200 years, 9.84 grams of Cesium would remain.
Let N represent the amount of substance after t years
The half-life of a cesium is 30 years., hence, this can be represented by exponential function:
[tex]N(t)=ab^t[/tex]
where a is the initial value and b is the multiplier.
There were initially 1000g of the substance
a) The exponential model for this situation is:
[tex]N(t) =1000(\frac{1}{2} )^{\frac{1}{30} t}\\\\N(t) =1000(\frac{1}{2} )^{\frac{t}{30}[/tex]
b) After 200 years (t = 200), the amount of Cesium remaining is:
[tex]N(200)=1000(\frac{1}{2} )^\frac{200}{30} \\\\N(200) = 9.84g[/tex]
Hence after 200 years, 9.84 grams of Cesium would remain
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Someone help me?Please
Answer:
C
Step-by-step explanation:
7 5/6 is 7.833333333333333333333
matthew paid 49.45 for 5 used video games of equal cost. the relationship between the number of video games and the total cost is proportional. what is the total cost for 11 used video games? use any strategy
Answer:
$108.79
Step-by-step explanation:
49.45÷5=9.89
9.89=the cost for 1 video game
9.89×11=108.79
(11=the used video games)
The answer would be $108.79 for 11 used video games.
I NEED HELP If right will make brileintest
Using the graph of f(x) and g(x), where g(x) = f(k⋅x), determine the value of k.
Graph of two lines. f of x passes through 2, 0 and 3, 2, and g of x passes through two thirds, 0 and 1, 2.
3
one third
negative one third
−3
Answer:
k=4
Step-by-step explanation:
So we have the graphs of f(x) and g(x).
And we know that g(x) is defined as f(kx), where k is some constant.
First, from the graph we can note two points:
For g(x), we have the point (1,10) and for f(x), we have the point (4,10).
ok now can you give me brainlest
b. Create an equation and sketch a graph that:
• has a minimum,
• is discrete, and
• is a linear absolute value function.
Answer:
Step-by-step explanation:
Yes.
Answer:
is a linear absolute value function
8. Write the following inequality in slope-intercept form. 6x + 2y = -46
There were 350 apples on the tree in March. By September there were 420 apples on the tree.
What was the percentage of change of apples on the tree? Round your answer to the nearest
tenth. *
Answer:
Step-by-step explanation:
20%
Answer:
The correct answer is 20.0% increase.
Step-by-step explanation:
In this situation, you would need to find how to find the percentage of change.
Therefore, you will need to first use subtraction, division and then multiplication to justify your answer.
--
First, find out how much the original number increased by.
[tex]420-350=70[/tex]
Next, divide the 70 with the original number, which is 350.
[tex]7[/tex] ÷ [tex]350=0.2[/tex]
Finally, to turn your decimal into a whole number, multiply by 100.
[tex]0.2[/tex] × [tex]100=20[/tex]
--
Remember to add the percent (%) symbol after receiving your final product.
20%
Rewrite the following mixed number as a decimal.
17 37/50
Solve for x:
x + 9 = 18 + -2x
Answer:
x+9=18-2x
-x -x
9=18-3x
-18-18
-9=-3x
-3 -3
3=x
x=3
Step-by-step explanation:
Answer:
x = 3
Step-by-step explanation:
Isolate the variable by dividing each side by factors that don't contain the variable and solve for x for the question “ x + 9 = 18 + -2x”.
Hope this helps :)
solve for x
2x + 8 < 5x− 4
Answer:
x > 4
Step-by-step explanation:
hope this helps
Evaluate: 17 - |2 - y| × 2 if y = -2
Answer:
9
Step-by-step explanation:
17 - |2 - y| × 2
17 - |2 - (-2)| × 2
17 - |2 +2| × 2
17 - |4| × 2
17 - 4 × 2
17 - 8
9
Choose the property that justifies the first step of simplifying the expression below.
3(-2x+5)
Property
Step
3.-2x+3.5
Two times a number Increased by fifteen is the same as five times a number less than forty three
Step-by-step explanation:
2x+15 = 5x-43
- Add 43 to both sides
2x+58 = 5x
- Subtract 2x from each side
58 = 3x
- Divide by 3
If 5 more than 5 times a number is 15, what is the number?
A) 4
B) 2
C) -4
D -2
Answer:
B) 2
Step-by-step explanation:
5 + 5x = 15
5x = 15 - 5
5x = 10
x = 2
In my point of view, the correct answer is B) 2
Hope it helps.
On a farm, the farmer decides to give pizza to her 18 ducks as a special treat. She orders
3 pizzas, and the total price is $26.28. What is the unit price of each pizza? (4 points)
Answer:
$78.84
Step-by-step explanation:
$26.28 multiplied by 3 is $78.84
PLEASEEE help!!! i dont remember how to do these
Answer:
22. the answer is 27n^2 m^5 s^6 / 32
23. the answer is -7
Step-by-step explanation:
Evaluate the function.
g(x) = 3.22 – 2x + 5
Find f(2)
Answer:
[tex]g(x) = 3 {x}^{2} - 2x + 5 \\ g(2) = 3 {(2)}^{2} - 2(2) + 5 \\ g(2) = 12 - 4 + 5 \\ \boxed{g(2) = 13}[/tex]
g(2) = 13 is the right answer.3. The breaking apart of rock by physical means is
Answer:
Weathering
Step-by-step explanation:
Weathering is the physical and chemical breakdown of rock at the earth's surface. The physical breakdown of rock involves breaking rock down into smaller pieces through mechanical weathering processes. These processes include abrasion, frost wedging, pressure release (unloading), and organic activity.
Answer: I would like to say this is the act of weathering
Step-by-step explanation:
I hope this helps
Have a great day :)
What is -6x multiplied by y
✿ ✿ ✿ ✿ ✿ [tex]Hi! :)[/tex] ✶ ✶ ✶ ✶ ✶ ✶ ✶ ✶ ✶ ✶ ✶ ✶ ✶ ✶ ✶ ✶ ✶ ✶ ✶ ✶ ✶ ✶ ✶ ✶ ✶ ✶ ✶
[tex]QUESTION:[/tex]
What is -6x multiplied by y? ✱ ✱ ✱ ✱ ✱
[tex]ANSWER:[/tex]
[tex]-6xy[/tex]
Hope this helps you!
Good luck on your assignment & enjoy your day!
[tex]GraceRosalia[/tex]
~Just an emotional teen who listens to music