Answer:
X= 7
Step-by-step explanation:
what is half the sum of x and y decreased by one-third y as a algebraic expression
Answer:
1/2(x+y) - 1/3
Step-by-step explanation:
I think this may be the answer based on the info you've given
Answer:
[tex]\frac{1}{2}(x+y) - \frac{1}{3}y[/tex]
Step-by-step explanation:
We can translate these words into an expression by just reading them and interpreting them.
Half the sum of x and y.
We know that it's going to include [tex](x+y)[/tex], and if we're taking half of that, we multiply that by [tex]\frac{1}{2}[/tex], so [tex]\frac{1}{2}(x+y)[/tex]
We also know that one third of y will be multiplying y by [tex]\frac{1}{3}[/tex], so [tex]\frac{1}{3}y[/tex].
Since we are decreasing [tex]\frac{1}{2}(x+y)[/tex] by [tex]\frac{1}{3}y[/tex], there's a minus sign between the terms.
So, [tex]\frac{1}{2}(x+y) - \frac{1}{3}y[/tex].
Hope this helped!
what is the change in each termof the sequence? 5, -2, -9, -16, -23
Answer:
-7
Step-by-step explanation:
To find the common difference, take the second term and subtract the first term
-2 - 5 = -7
Check by subtracting the second term from the third term
-9 - (-2) = -9+2 = -7
The common difference is -7
what equation for 10-3x2+(7-4)
Answer:
13-6x
Step-by-step explanation:
10 - 3x ×2+(7-4)
10 - 6x+(7-4)
10-6x+3
=13-6x
Solve for x. Evaluate and round your answer to 1 decimal place (tenths place). 10x=3588
Answer:
x =3.6Step-by-step explanation:
[tex]10^x=3588\\\mathrm{If\:}f\left(x\right)=g\left(x\right)\mathrm{,\:then\:}\ln \left(f\left(x\right)\right)=\ln \left(g\left(x\right)\right)\\\ln \left(10^x\right)=\ln \left(3588\right)\\x\ln \left(10\right)=\ln \left(3588\right)\\\mathrm{Solve\:}\:x\ln \left(10\right)=\ln \left(3588\right):\quad x=\frac{\ln \left(3588\right)}{\ln \left(10\right)}\\\\= 3.55485\\=3.6[/tex]
evaluate the expression
Answer: 85
Step-by-step explanation:
To solve this problem, we want to use the order of operations, or PEMDAS.
Parenthesis
Exponent
Multiply
Divide
Add
Subtract
To be more specific, you evaluate the expression in the order from top to bottom. To clarify, it is multiply OR divide, depending on which comes first, left to right. This also applies to add OR subtract.
------------------------------------------------------------------------------------------------------------
20÷(5-3)+5²(3) [solve parenthesis]
20÷(2)+5²(3) [solve exponent]
20÷2+25(3) [solve multiply or divide, left to right]
10+75 [solve add or subtract]
85
Answer:
85
Step-by-step explanation:
To evaluate the expression, follow the rule of PEMDAS: Parentheses, Exponents, Multiplication, Division, Addition and Subtraction.
[tex]20 \div (5-3) +5^2(3)[/tex]
Solve inside the parentheses first by subtracting 3 from 5.
5-3 = 2
[tex]20 \div (2) +5^2(3)[/tex]
Next, evaluate the exponent.
5² = 5*5= 25
[tex]20 \div 2+25(3)[/tex]
Next, multiply 25 and 3.
25 *3 =75
[tex]20 \div 2+75[/tex]
Then, divide 20 by 2.
20/2=10
[tex]10+75[/tex]
Finally, add 10 and 75.
[tex]85[/tex]
The expression [tex]20 \div (5-3) +5^2(3)[/tex] evaluated is 85.
Identify the roots of the equation x^2 = 9x − 14 by factoring. x = 2 or x = 7 x = −2 or x = 7 x = 2 or x = −7 x = −2 or x = −7
Answer:
x = 7, x = 2
Step-by-step explanation:
Given
x² = 9x - 14 ( subtract 9x - 14 from both sides )
x² - 9x + 14 = 0 ← in standard form
(x - 7)(x - 2) = 0 ← in factored form
Equate each factor to zero and splve for x
x - 7 = 0 ⇒ x = 7
x - 2 = 0 ⇒ x = 2
Simply this expression: -2+3-(5-6x)
Answer:
6x-4
Step-by-step explanation:
Answer:
-4-6x
Step-by-step explanation:
you would just combine -2 and 3 so you get 1 and then you would get 1-(5-6x) and you can just take away the parenthesis since in this case it doesn't matter and when you simplify that you get -4-6x
write 23/25 as a decimal
Which function is not defined at 0? Please help urgent
Answer:
b and g
Step-by-step explanation:
a. is y = 0³ = 0
b. is y = ln(0), which is undefined because ln(x) is only defined for x > 0
c. is y = 1 / (1 + e^-0) = 1 / (1 + 1) = 1/2
d. is y = 0
e. is y = 0² = 0
f. is y = sin(0) = 0
g. is y = 1/0, which is undefined because division by 0 is undefined
h. is y = e^0 = 1
i. is y = |0| = 0
j. is y = √0 = 0
The original price of a toy was $400. It was increased by 20%. after some time the sale of toys decreased. So, the shop owner decided to decrease the price by 20%
What is the final price of the toy.
Answer:
$384
Step-by-step explanation:
Original price = $ 400
Increased price = 20% of 400
= [tex]\frac{20}{100}[/tex] * 400
= $ 80
Price after increase = 400 + 80 = $ 480
Decreased price = 20% of 480
= [tex]\frac{20}{100}\\[/tex] * 480
= $ 96
Price after decreasing 20% = 480 - 96 = $ 384
Final price of the toy = $ 384
pineapples are on sale for $1.50 per pound. Let y be the total cost in dollars of x pounds of pineapple which equation represents the situation
Answer:
y=1.5x
Step-by-step explanation:
Step 1: State what you know
Pineapples are 1.50 per pound
X represents how many pounds of pineapples you want to buy
Y represents how much do 'x' amount of pineapples cost in dollars
Step 2: Write the equation
y (the price of 'x' pounds of pineapple)=1.5(the cost of a pineapple)x(how many pounds of pineapples you bought)
Therefore the equation that represents the problem is y=1.5x
Answer:
y=1.5x
Step-by-step explanation:
If the marked price of an article is Rs. x, discount amount is
Rs. y and the VAT amount is Rs. 2, Calculate the selling
price of the article including VAT.
Answer:
Rs. (x - y + 2)
Step-by-step explanation:
The marked price is the price that a product is to be sold. The product can be sold at a discount which is below the marked price of the product.
The marked price of the article is Rs. X. The discount is Rs. y, therefore the article price = marked price - discount = x - y.
But since the article is sold with a VAT of Rs. 2, the VAT is added to the price, therefore the selling price of the article including VAT is Rs. (x - y + 2)
I'm really confused about this. Can I get some help?
Trisha wants to be a nurse practitioner or doctor for her future career. Which CTSO would be best for Trisha to join?
A. TSA
B. DECA
C. HOSA
D. FEA
Answer:
C. Since she wants to be a nurse she'd go into the health and technology field.
Step-by-step explanation:
TSA - Technology Student Association or Transportation Security Administration
DECA - Defense Commissary Agency
HOSA - Health Occupations Students of America
FEA - ?
Answer:
C. HOSA
Step-by-step explanation:
find the sum of -3/2 - 7/4 + 1/8
Answer: -25/8
Step-by-step explanation:
Answer:
The sum of -3/2-7/4+1.8 = -3.125
How much will it take to do a work of 190J with 15w power
Answer:
[tex]\Huge \boxed{\mathrm{12.67 \ s}}[/tex]
Step-by-step explanation:
[tex]\displaystyle power \ (W) = \frac{work \ done \ (J)}{time \ (s)}[/tex]
[tex]\displaystyle P= \frac{W}{t}[/tex]
[tex]\displaystyle 15= \frac{190}{t}[/tex]
Solve for t.
Multiply both sides by t.
[tex]15t =190[/tex]
Divide both sides by 15.
[tex]\displaystyle t= \frac{190}{15}[/tex]
[tex]t \approx 12.67[/tex]
[tex] \bf \underline{ \underline{given : }}[/tex]
Work = 190 JPower = 15 W[tex]\bf \underline{ \underline{To \: be \: calculated : }}[/tex]
Calculate the time ?
[tex]\bf \underline{ \underline{
Formula \: applied :}}[/tex]
[tex] \boxed{ \bf{Power = \frac{Work \: done}{Time} }}[/tex]
[tex]\bf \underline{ \underline{Solution : }}[/tex]
We know,
[tex]\sf {Power = \dfrac{Work \: done}{Time}}[/tex]
[tex] \sf{ Time = \dfrac{Work \: done}{Power } }[/tex]
Substituting the values of work and power, we get:
[tex] \sf \implies{Time = \dfrac{190}{15} }[/tex]
[tex] \sf\implies{Time = 12.66 \: s}[/tex]
Thus,the time taken by a body is 12.66 seconds.
7.
I then took medicine prescribed by my doctor to help with my
fever. My fever went down 1.2 degrees every 4 hours. What is
my temperature after 12 hours?
Answer:
The answer would be 3.6 degrees less than the starting temperature.
Step-by-step explanation:
1.2 * 3 = 3.6
4*3 = 12
3.6/12 hours
si la economía produce actualmente dos unidades de armas y cuatro unidades de mantequilla cuál es el costo de oportunidad de aumentar la producción de mantequilla de 4 unidades 11 unidades
Answer:
0.36 %
Step-by-step explanation:
seria el 36 por ciento de aumento por que las dos cantidades divididas te daría a cero punto treinta y seis porciento más de las dos cantidades
}
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Problem Solving
D A farmer watered 10/82 of a field. What decimal is
equivalent to the fraction of the field the farmer
watered?
type here
Answer:
0.1219512195122
Step-by-step explanation:
To write 10/82 as a decimal you have to divide numerator by the denominator of the fraction.
We divide now 10 by 82 what we write down as 10/82 and we get 0.1219512195122
what is the answer to
-9 +(-2)
Answer:
-11
Step-by-step explanation:
Substarct 2 from -9.
Answer:
-11
Step-by-step explanation:
lets think about it this way, you owe 9, you also owe 2, so altogether you owe 11, which is -11
PLEASE HELP ME ILL MARK BRIANLIEST I NEED IT ASAP!
Answer:
14(1/2-t)≤28
14(1-2t)/2≤28
14-28t≤28
-28t≤56-14
-28t≤42
t≤42/-28
t≤ -1.5
15k+11≤18k-5
15k-18k≤-5-11
-3k≤-16
k≤-16/-3
k≤-5.333
44y>11+88y-22y
44y>11+66y
44y-66y>11
-22y>11
y>11/-22
y>-0.5
7/9(b-27)>49/81
(7b-180)/9>48/81
81(7b-189)>9(49)
567b>441+15309
567b>15750
b>15750/567
b>27.78
Yoooo help
A ball is thrown starting at a time of O and a height of 2 meters. The height of the ball follows the function
H(t)= -4.9t^2 +25t +2. What is the height of the ball at each second from 0 to 5?
Answer:
0 - 1 - 2 - 3 - 4 - 5
2 - 22.1 - 32.4 - 32.9 - 23.6 - 4.5
Step-by-step explanation:
The function is:
H(t) = -4.9t^2 +25t +2Calculating the value of H for each value of t from 0 to 5
H(0) = 2H(1) = -4.9*1^2 + 25*1 + 2 = 22.1H(2) = - 4.9*2^2 + 25*2 + 2 = 32.4H(3) = -4.9*3^2 + 25*3 + 2 = 32.9h(4) = -4.9*4^2 + 25*4 + 2 = 23.6H(5) = - 4.9*5^2 + 25*5 + 2 = 4.5Correct answer choice is the 3rd one or C
18 divide by 2/3 ??????????
Answer:
30
Step-by-step explanation:
2/3 = .6
18/.6 = 30
Answer:
27
Step-by-step explanation:
If you want to divide a fraction, you have to divide it from it's reciprocal.
The reciprocal of 2/3 is 3/2.
Now, you have to multiply 3 and 18
18 x 3/2 = 54/2
54 divided by 2 is 27.
Hope it helped :>
i need help A sailboat travels a distance of miles in of an hour. Which complex fraction represents the unit rate in miles per hour?
Answer:
first of all i need to know the fractions and answer choices to answer this question.
Which of the following is an irrational number? (1 point)
OO
O 0.100100010000...
14
O
O 1,483,292
Answer:
0.100100010000...
Step-by-step explanation:
becoz in irrational numbers decimal goes on forever
Give an example of a set of ordered pairs that has five elements in its domain and four elements in its range.
Answer:
[ (-1,0) (0,0) (1,1) (2,2) (3,3) ]
Domain = { -1,0,1,2,3 }; Range = { 0,1,2,3 }
Step-by-step explanation:
Set or collection of ordered pairs is called 'Relation'. The ordered pairs are in terms f x & y coordinate.
Eg : [ (-1,0) (0,0) (1,1) (2,2) (3,3) ]
Domain is a set of all x axis values. Range is a set of all y axis values. They are arranged non repetitively in ascending order.
Domain = { -1,0,1,2,3 }
Range = { 0,1,2,3 }
As mentioned : the relation has been designed, as such to have five elements in its domain and four elements in its range
73) Find the surface area. Don't forget your
label.
8 cm
10 cm
18 cm
8 cm
Answer:
512cm²
Step-by-step explanation:
1/2bh*2 = 1/2(4)(10)(2)=40
Each triangle is 40
18*8=144
Each rectangle is 144
144+144+144+40+40=512cm²
45% of the pizzas in the freezer in the store are cheese pizzas. There are 120 pizzas in the
freezer. How many of them are cheese pizzas?
Answer:
54 cheese pizzas
Step-by-step explanation:
We know that there are 120 pizzas in the freezer, and 45% of them are cheese pizzas.
We want to find out how many cheese pizzas are in the freezer, so we should multiply 45% and 120.
45% * 120
Convert 45 % to a decimal. Divide 45 by 100 or move the decimal place 2 spots to the left.
45/100= 0.45 or 45.0 --> 4.5 ---> 0.45
0.45 * 120
Multiply 0.45 and 120
54
54 cheese pizzas are in the freezer.
Property can be used to remove the parentheses in the expression 1.7(x+9)
Answer:
The Distributive Property.
Step-by-step explanation:
1.7(x + 9)
= 1.7 * x + 1.7 * 9
= 1.7x + 15.3.
3(x+14)=42 plz need help now
Answer:
0
Step-by-step explanation:
So we have the equation:
[tex]3(x+14)=42[/tex]
Divide both sides by 3:
[tex]x+14=14[/tex]
Subtract 14:
[tex]x=0[/tex]
The value of x is 0
Answer: x=0
Step-by-step explanation:
Given
3(x+14)=42
Distributive property
3x+42=42
Subtract 42 from both sides
3x=0
Divide 3 on both sides
x=0
----------------------------------------------------
Given
3(x+14)=42
Divide 3 on both sides
x+14=14
Subtract 14 on both sides
x=0
Both ways are fine
Hope this helps!! :)