Step-by-step explanation:
you will see, this is totally easy. so, once you understand that principle, I am sure you will agree with me that this costs more time putting it in here than just doing it yourself in the future.
you need to consider for addition and subtraction every variable combined with an exponent a different thing, a fruit for example.
you know exactly what to do, when you are being asked to add 3 apples to 2 apples, right ?
or, when are are asked to add 4 apples and 2 pears to 3 apples and 2 pears.
in the first case we simply get 5 (2+3) apples.
in the second case we get 7 (3+4) apples and 4 (2+2) pears.
and nothing else happens here.
we could call x² apples, y² pears, y³ plums, x kiwis, t strawberries, t² raspberries. and the constants could be another fruit or grams of sugar.
now, we simply combine the "fruits" that belong together. there is nothing more to this.
5x² + 3y³ - 4x² = x² - 3y³ (because 5-4 for x²)
y³ + 2y³ - 8 + 2 = 3y³ - 6 (1+2 for y³ and -8+2 constant)
9 - 3x - 4x + 2x - 12 = -5x - 3
-6t + 4t² - 6 + 7t - 4t² = t - 6 (4-4 for t², -6+7 for t)
Deanna borrowed $650 at 8% 0 simple interest. How much - 52 interest did she pay for 1 year?
Answer:
i = ($650)(0.08)(1) = $52
Step-by-step explanation:
The formula for simple interest is i = prt. Here p = $650, r = 0.08 and t = 1 (year). Then the simple interest Deanna paid for this one year loan was
i = ($650)(0.08)(1) = $52
Which expression is equivalent to 4(y-3)
Answer:
4y-12
Step-by-step explanation:
4(y-3) = (4)(y) + (4)(-3) = 4y + (-12) = 4y-12
The population of the United States is approximately 320,000,000 people. Which is a
reasonable estimate for the amount of food consumed by the population of the United
States per day?
Answer:
960,000,000 lbs
Step-by-step explanation:
The average person eats about 3 pounds of food a day so multiply 3 by 320,000,000 and you get 960 million lbs.
PLEASE HELP IMMEDIATELY!! ITS WITH ORDER OF OPERATIONS AND PEMDAS!!
Answer:
Answer for question 1: 52
Answer for Question 2: 68
Answer for question 3: 40
Answer for Question 4: 25
Step-by-step explanation:
1: [tex](4 + 3)^2[/tex] = [tex]7^2[/tex] = 49 (12 ÷ 4) = 3
3 + 49 = 52
2: [tex](12 * 9- 7^2) + 9[/tex] = 12 * 9 = 108 - 49 = 59 + 9 = 68
3: 28 ÷ 7 = 4 + [tex]6^2[/tex] = 40
4: [tex](2 * 7 + 4^2) - 5[/tex] = 2 * 7 = 14 + 16 = 30 - 5 = 25
Hope this helps!
Help plz:
10. Remove the parentheses by multiplication:
a. 6(2a - 4) =
b. x(2x + 10) =
c. 5(9x - 9) =
d. 3x(2x - x) =
Answer:
A = 12a - 24
B = 2x² + 10x
C = 45x - 45
D = 6x² - 3x²
Step-by-step explanation:
You can solve all of these by distributing the first number/variable into the parenthesis. Just multiply the number outside the parenthesis by each of the terms inside the parenthesis.
Ryan is planning a party for his parents’ anniversary. The caterer charges a delivery fee of $[tex]14[/tex] plus an additional $[tex]5.25[/tex] per person. If he can spend no more than $[tex]350[/tex], how many people can he invite?
X - How many people he can invite
Find -3(-1.25)
HELP PLEASE COULDN'T SCREENSHOT THE ORIGINAL QUESTION
Answer:
-4.75
Step-by-step explanation:
start at -3, and go left once and then you have the decimal, .25=1/4 and 1/4-4/4=3/4=.75.
Hope this helps.
Laura made 3/4 of a kilogram of trail mix. If she puts 1/4 of a kilogram into each bag, how many bags can Laura fill?
Laura can fill 3 Bags
if she has 3/4 kilograms of mix and each bag, she only needs 1/4
-ㄚㄩ尺丨
Pls help me with this math.
6 x ( 10 + 3 ) - 18 help me please ǝɯᴉʇ ɹnoʎ ɹoɟ noʎ ʞuɐɥʇ .
Answer:
The answer is 60
Step-by-step explanation:
6 x ( 10 + 3 ) - 18
6 x 13 - 18
78 - 18
60
70x + 50 = 190
What is x?
Answer:
x = 2
Step-by-step explanation:
70x + 50 = 190
=> 70x = 140
=> x = 2
Therefore, x = 2.
Hoped this helped.
please help me get an answer for this question.
Answer:
I have no idea
Step-by-step explanation:
reread lines 9-18. underline the parts of a bats body that humans also have. Study the image of the bat. How does showing body parts similar to a humans help you better understand a bats body? Support your answer with explicit textual evidence.
Answer:1/2 of an answer is zero answer.
Step-by-step explanation:
THERE ARE 4 QUESTIONS BELOW!
1. Mae Ling earns a weekly salary of $395 plus a 5.0% commission on sales at a gift shop. How much would she make in a work week if she sold $4,800 worth of merchandise?
She would make $_______
2. Ramon earns $1,865 each month and pays $53.30 on electricity. To the nearest tenth of a percent, what percent of Ramon's earnings are spent on electricity each month?
Ramon spends ______% of his earnings on electricity each month.
3. James, Priya, and Siobhan work in a grocery store. James makes $7.00 per hour. Priya makes 40% more than James, and Siobhan makes 15% less than Priya. How much does Siobhan make per hour?
Siobhan makes $_______ per hour.
4. The Hu family goes out for lunch, and the price of the meal is $46. The sales tax on the meal is 6%, and the family also leaves a 20% tip on the pre-tax amount. What is the total cost of the meal?
The total cost of the meal is $__________.
5. For the following real-world examples, determine whether each situation represents a percent increase or a percent decrease.
Sales tax on an item is a percent ______
A discount on an item is a percent _____
A tip on a bill is a percent __________
A jar is filled with quarters and nickels in the ratio 1 2/5 to 2 1/3. If there are 24 quarters in the jar, what is the ratio in dollar value of quarters to that of the nickels???
Answer:
3 : 1
Step-by-step explanation:
The ratio of coins is ...
1 2/5 : 2 1/3 = 7/5 : 7/3 = 3 : 5
The quarters have 5 times the dollar value of nickels, so the ratio of dollar values is ...
5(3) : 5 = 3 : 1
The quarters have 3 times the dollar value of the nickels.
__
Additional comment
The number of nickels is 5/3 times the number of quarters, so is 5/3(24) = 40.
The dollar value of the quarters is 24($0.25) = $6.
The dollar value of the nickels is 40($0.05) = $2.
As above, the ratio of dollar values is 6:2 = 3 : 1.
__
There are a few different ways to compute the ratio of fractions. The one we used here may be a little unusual. All are equivalent.
[tex]\bullet\quad\dfrac{a}{b}\div\dfrac{c}{d}=\dfrac{a}{b}\times\dfrac{d}{c}\qquad\text{"invert and multiply"}\\\\\bullet\quad\dfrac{a}{b}\div\dfrac{c}{b}=\dfrac{a}{c}\qquad\text{ratio of numerators with the same denominator}\\\\\bullet\quad\dfrac{a}{b}\div\dfrac{a}{c}=\dfrac{c}{b}\qquad\text{inverse ratio of denominators with the same numerator}[/tex]
Simplify:
-30x^9/10x^17
Answer:
-3/x^8
Step-by-step explanation:
First, we simplify -30/10 which will be -3.
Next, we simplify x^9/x^17 which will be x^-8, since when dividing exponents, you subtract them. Sorry if this sounds confusing, but if this helps you better understand it, then here you go: I mean that y^n/y^z = y^(n-z).
x^-8 = 1/(x^8), and to find our answer, we multiply this by -3 to get an answer of:
-3/x^8
Which is a solution for x in the equation:
x²=60
A. ²√60
B. ∛60
C. 15
D. 10
Answer:
wwww
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
to find what x² is you have to square root the answer
Evaluate the equation.
-8x = -90
A. x = 82
B. x= 45/4
C. x= - 45/4
D. x= -82
Answer:
B. x=45/4
Step-by-step explanation:
Ahyoka has 250 CDs 10 percent are country,70 percent are pop, and the rest are hip-hop how many CDs are hip-hop?
Answer: their are 50 hip hop CDs
Step-by-step explanation: 10% of 250 CDs is 25CDs, so 20 % is 50 CDs and 70% is 175 CDs.
Two containers designed to hold water are side by side, both in the shape of a cylinder. Container A has a radius of 13 feet and a height of 14 feet. Container B has a radius of 10 feet and a height of 18 feet. Container A is full of water and the water is pumped into Container B until Conainter B is completely full.
After the pumping is complete, what is the volume of water remaining in Container A, to the nearest tenth of a cubic foot?
Answer:
The percentage ≅ 48.4%
Step-by-step explanation:
The volume of water left in container A = 2197π - 1134π = 1063π feet³
* To find the percentage of the water that is full after pumping
is complete, divide the volume of water left in container A
by the original volume of the container multiplied by 100
∴ The percentage = (1063π/2197π) × 100 = 48.3841 ≅ 48.4%
What is the range of possible sizes for side x?
Answer:
12.0
Step-by-step explanation:
Add the sides and you get your answer
HELP me and you have to say/select ALL. fake answers or incomplete answers gets deleted/reported
Answer:
a f e i think
Step-by-step explanation:
HOW DO YOU FIND RADIUS
Answer:
you can divide the diameter by 2 or divide the circumference by 2pi
Step-by-step explanation:
If the circumference of a circle is given:
Let the radius be r.Say, that the circumference is given as C.By using the formula,[tex]2\pi \: r = C \\ = > r = \frac{C}{2\pi} [/tex]So, to find radius of a circle when circumference is given, we have to divide the circumference with 2π. Then, we will get the radius of the circle.Note : You have to consider π as 22/7 or 3.14. Or the value will be given in the question.If the diameter of a circle is given:
Let the radius be r.Let the diameter be D.By using the formula,2r = D[tex] = > r = \frac{D}{2} [/tex]Hence, if the diameter of a circle is given, we have to just divide the diameter with 2. Then we will get the radius of the circle.Hope you could get an idea from here.
Doubt clarification - use comment section.
HELP! PLEASE!
• At store A, 3 pounds of apples cost $12.
• At store B, the cost is given by y = 2x where y is the cost in dollars and x is the number of pounds of apples.
• The cost of apples at store C is shown in the graph.
(don't worry about the graph I know how to do this one)
Answer the questions to find out which store's apples are the least expensive.
2. What is the unit price of apples at store B? How did you use the equation to find the unit price? (2 points)
Answer:
The unit price is the cost per unit of an item or the cost/price for each item.
1) 4$ per pound. By simplifying the proportion (constant ratio) between the cost, and the pounds of apples. 3 pounds of apples cost 12$ → 3/3 pounds of apples cost 12/3$ → 4 dollars for every pound.
2) 2$ per pound. By evaluating the rate of change (change in the y over x or dependent variable over independent) in the equation: y = 2x. y is the cost in dollars, and x is the pounds of apples. So there are 2 pounds (weight) of apples for every dollar.
3) 3$ per pound. Given a graph with a y scaled by 3, and an x scaled by 1 with a graph y = x or 1 unit up for every unit right. This must be equivalent to y = 3x. Where y is labeled as the cost in dollars, and x as the weight in pounds. So there are 3 dollars for every pound of apples.
4) Store B. Because 2 is less than 3 which is less than 4.
What is (6/3×21/9)÷[8.9+2/4]×14×84
Answer:
The answer I got was 583.82
Please give me the right answer and i will give you 100 points
Translate the phrase into a math expression.
Twelve more than the quotient of six divided by three.
A. (3÷6)+12
B. 3÷(6+12)
C. (6÷3)+12
D. 6÷(3+12)
Answer:
C
Step-by-step explanation:
Quotient of 6 divided by three translates to (6/3) and then +12.. so you get (6/3)+12
SImplify:
(2m)^5
Please help if possible :)
Shaun is painting a fence. After finishing three-eighths of the length of the fence he finds that
he has painted 15 feet. Let f be the total length of the fence, set up an equation like one of
those in 4(b) and solve to find f. Use either of the two methods.
Answer: F = 40
Step-by-step explanation:
*Important: I do not know what the methods mentioned in 4b are, nor do I know its equation. Please take this into account.
What we know:
3/8 is equal to 15 ftF is the total amount of fence paintedWe need to set up and solve the equationHow we do this:
Using basic division, this equation is solveable.
Process:
Divide to find 1/8 15/3 = 5 (1/8f = 5)Multiply to find total 5 x 8 = 40(1/8 x 8 = 8/8)
Solution:
F = 40
8(5) = F
Answer: x = 40
Step-by-step explanation:
let f be the total length of the fence:
(3/8)f = 15
divide both sides by 3/8
f = 15 x 8/3
f = 120/3
f = 40
Please help me find all choices that apply to the question
Answer:
which question
Step-by-step explanation:
