Answer:
x = 0.3
Step-by-step explanation:
6x + 3 + 4x = 1/2 (9 + 10x)
=> 10x + 3 = 1/2 *9 + 5x
=> 5x + 3 = 9 / 2
=> 5x = 9 / 2 -3
=> 5x = (9 - 6) / 2
=> 5x = 3 / 2
=> x = 3 / 10
=> x = 0.3
Hope it helps :)
Tina is 7 years younger than her cousin, Sierra. Their ages add up to 31. How old is Tina?
Answer:
Sierra is 19 and Tina is 12.
Step-by-step explanation:
Sierra is 19 and Tina is 12.
19-7 = 12
19+12= 31
can somebody please help i’ve posted this 1 time and people just used it for points
6th grade math help me pleaseeee
Answer:
D :3 -Your friend, Bill Cipher
Step-by-step explanation:
Answer:
sqrt of 65, bc 8 squared is 64
326 is 28% of what number
Answer:
1164.29
Step-by-step explanation:
divide 326 by 28 then times by 100 to get 100% of the number
Explain the process for determining sales tax and total purchase price.
Answer:
in most states sales tax is .07 cents for every dollar you spend. for food it is different
Step-by-step explanation:
Pls, answer for 20 points asap. I really need this
Its B then A
Step-by-step explanation:
Answer:
You helped me so it's B and A mark me brainliest please
Step-by-step explanation:
given f(x) =3x+7 find f(5)
Answer:
22
Step-by-step explanation:
f (5)=3 (5)+7
f (5)=15+7
f (5)=22
the width if a rectangular room is 1 less than twice the length if the perimeter is 196 feet how long is the length
Answer:
l = 33 feet
Step-by-step explanation:
Let length be l.
Width, b = 2l-1
Perimeter of the room, P = 196
We know that the perimeter of the rectangle is given by :
P = 2(l+b)
196=2(l+2l-1)
98=3l-1
Adding 1 both sides.
98+1=3l-1+1
3l=99
l = 33 feet
So, the length of the room is 33 feet.
help me please!!!!!!!!!!!!!!!!
Answer:
The second store is cheaper
1st store is $290 and the 2nd is $257
If $8,000 is invested at 5 % annual interest compounded
semiannually, how much will the investment be worth in 6 years? Give
your answer to the nearest dollar.
solve the system using the any method:
x+3y=9
2x+5y=14
pls explain-
7(2x+5) = 11x-9-x
How would you verify or check your answer when x=-11 pls HELP]
9514 1404 393
Answer:
put the value into the equation and do the arithmetic
Step-by-step explanation:
As with any checking, you put the value where the variable is and do the arithmetic.
7(2x +5) = 11x -9 -x
For x = -11
7(2(-11) +5) = 11(-11) -9 -(-11)
7(-22 +5) = -121 -9 +11
7(-17) = -119
-119 = -119
The value x = -11 makes the equation true.
expressions that are equivalent to b×b
Answer:
b^2
Step-by-step explanation:
Stan has a rectangular piece of carpet with an area of 23.4 square meters. The piece of carpet is 13 meters long. What is the width of the piece of carpet? Solve this problem any way you choose.
Answer:
The breadth of rectangular carpet is 1.8 m
Step-by-step explanation:
23.4/13=1.8 sorry if this is not enough explanation
Find x y and ABHG for brainliest
Answer:
because AB//EF//CD, using thales theorem in ABEF, we have:
[tex]\frac{12}{21}=\frac{15}{y}\\\\<=>y=\frac{15.21}{12}=26.25[/tex]
we also have: CD//EF//GH => using thales theorem in CDGH:
[tex]\frac{21}{x}=\frac{y}{10}\\\\<=>x=\frac{210}{y}=\frac{210}{26.25}=8[/tex]
with y = 26.25 => AB = 26.25 - 14 = 12.25
x = 8 => GH = 5.8 - 3 = 40 - 3 = 37
+) the perimeter of ABHG = AB + AC + CE + GE + GH + HF + DF + BD
= 12.25 + 12 + 21 + 8 + 37 + 10 + 26.25 + 15
= 141.5
Step-by-step explanation:
Please help this is hard.
Solve: 4n - 6 = 12
O n = 4
O n = -4
O n = 4.5
O n=-4.5
Answer:
4.5
Step-by-step explanation:
4n - 6 = 12
add +6 to both sides
4n = 18
divide by 4
4/4n = 18/4
n = 4.5
A.The original price of a sofa is $500. Answer the following questions. If the sofa price decreased by 20%, what is the new price?
B. The company can’t sell the sofa after 3 weeks so they reduce the price to $320. What is the percent decrease?
Answer:
A. 25
B. 0.64
Step-by-step explanation:
Sorry there is no Step-by-Step explanation to this equation as I have generated an answer from my system.
--
Use: Division.
Use: PEMDAS
--
#LearningFromHome
Answer:
-36% decrease
Step-by-step explanation:
320-500=-180
-180/500=.36*100=-36%
Mary has 3636 flower pots. She plants daisies in \frac{2}{3} 3 2 of her flower pots. In how many flower pots does Mary plant daisies? Use paper to show your work. Enter your answer in the box.
Answer: 24
Step-by-step explanation:
Number of flower pots = 36
Since she plants daisies in 2/3 of her flower pots, the number of flower pots that Mary plant daisies will be:
= 2/3 × 36
= 2 × 12
= 24
She plants daises in 24 flower pots
what is half of 1/4?
Answer:
It is 1/8
Step-by-step explanation:
If you split 1/4 into another half you will get 1/8
This is true because if you add 1/8 and 1/8 you get 2/8 which simplified is 1/4
Please help, if you get right, you will get a brainlst.
Answer:
from left to right
-8
-9
-10
-11
Can someone PLEASE help me with this question?
9514 1404 393
Answer:
11
Step-by-step explanation:
The future value of the account is given by the formula ...
A = P(1 +r/12)^(12t) . . . . principal P invested at rate r for t years
Solving for t, we find ...
A/P = (1 +r/12)^(12t) . . . . . . . . . . . divide by P
log(A/P) = 12t·log(1 +r/12) . . . . . . take logs
Divide by the coefficient of t, then fill in the numbers.
t = log(A/P)/(12·log(1 +r/12)) = log(202800/93000)/(12·log(1 +.068/12))
t ≈ 11.497
It will take about 11 years for the account balance to reach the desired amount.
1. expand 4³
2.find the square of 49
3.list factors of 16
4.draw an array for the square number 16
5.calculate 6²
6.calculate 1⁴+2²=
7.calculate 2²+3²
here are my questions please help
Answer:
1. 64
2. 7
3. 1, 2, 4, 8, 16
4.
5. 36
6. 5
7. 13
A variable needs to be eliminated to solve the system of equations
below. Choose the correct first step.
–9x – 10y = -42
-9x + 7y = 60
Answer:
The first step would be to subtract the two equations.
The temperature on Monday in Alaska is -24ºF. On Tuesday, the temperature rises 24ºF.
What is the temperature on Tuesday, in degrees Fahrenheit?
Answer:
0 degrees
Step-by-step explanation:
-24 + 24 = 0
Answer:
Wouldn't the answer be 0 degrees Farenheit?
Step-by-step explanation:
-24 + (+24)=0
percents and poprtions
1880000 in scientific notation
Answer:
1.88 x 10⁶
Step-by-step explanation:
There are 18 girls on the swim team and 12 boys on the swim team what percent of the team is made up of boys
Answer:
40%
Step-by-step explanation:
So add 18 and 12 makes 30. Then divide 30 with a common factor say 6. so there is 5 6s in 30 so each 6 is equivalent to 20 percent there are 2 6s in 12 so it is 40 percent
What is the pattern for solving Benchmark Percentages of 100% ?
Answer: divide by 100 then times result by x
Step-by-step explanation: hope it helps
thx for points gl :)
2) Dan pays $42.95 per month for his cell phone. At
this rate, what will his cell phone cost for a year?
Please help !
Answer:
$515.40
Step-by-step explanation:
Dan pays $42.95 per month for his cell phone. There are 12 months.
m=months
($42.95m) (12) = $515.40