= 2x = 9
= x = 9 ÷ 2 ( transposing ×2 from LHS to RHS changes ×2 to ÷2 )
= x = 4.5
Therefore , x = 4.5 .
A woman buy a pair of shoes at a sale. She pays $60,saving $15 on the regular price. The percentage discount on the shoes is
Answer:
25 percent.
Step-by-step explanation:
15 is 1/4 of 60 and if she gets 1/4 off then that's equal to 25 percent
Four brothers each bought two hot dogs and a bag of chips at the football concession stand. If the bag of chips was $1.25, and the total was $18.20, what was the price of one hot dog
Your answer is 1.65.
(may have a hard time explaining it)
SO, there are 8 hotdogs and 4 bags of chips, 4 times 1.25 is 5, and 18.20 minus 5 is 13.20, so the chips are out of the equation. Now all we must do is divide what's left (13.20) by 8:
13.20/8=1.65
Hope this helps, if not, comment down below please!!!
10 oranges and 20 grapefruits weigh 35 pounds total. 16 oranges and 10
grapefruits weigh 23 pounds total. How much would 13 oranges and 15
grapefruits weigh?
A 28 pounds
B 29 pounds
C 30 pounds
D 58 pounds
Answer:
B
Step-by-step explanation:
oranges weigh 0.5 and grapefruits weigh 1.5
The required: 13 oranges and 15 grapefruits would weigh 29 pounds.
The correct option is A.
What is the system of equations?One or many equations having the same number of unknowns that can be solved simultaneously are called simultaneous equations. And the simultaneous equation is the system of equations.
Let's use a system of equations to solve this problem:
Let's call the weight of an orange "x" and the weight of a grapefruit "y". Then we can write:
10x + 20y = 35 (equation 1)
16x + 10y = 23 (equation 2)
We want to find the weight of 13 oranges and 15 grapefruits, which we can represent as:
13x + 15y
In this case, we can multiply equation 1 by -8 and equation 2 by 15:
-80x - 160y = -280 (equation 1, multiplied by -8)
240x + 150y = 345 (equation 2, multiplied by 15)
Now we can add the two equations to eliminate y:
160x = 65
Solving for x, we get:
x = 65/160
Now we can substitute this value of x back into one of the original equations to solve for y. Let's use equation 1:
10(65/160) + 20y = 35
Simplifying this equation, we get:
13/32 + 2y/4 = 7/2
Multiplying both sides by 32, we get:
13 + 16y = 112
Solving for y, we get:
y = 99/16
Finally, we can substitute these values of x and y into the expression for 13 oranges and 15 grapefruits:
13x + 15y = 13(65/160) + 15(99/16) = 29.0625
Therefore, 13 oranges and 15 grapefruits would weigh approximately 29.0625 pounds, which is closest to answer B, 29 pounds.
To learn more about the system of equations;
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Find the points of the equation 3x – 7y= 21 which intersects the x - axis and y-axis.❤THANKS YOU
♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️
To find the x-intercept ;
Just need to put 0((zero)) instead of y in the equation.
Let's do it....
3x - 7y = 21
3x - 7(0) = 21
3x - 0 = 21
3x = 21
Divided sides by 3
3 / 3 × x = 21 / 3
x = 7
Thus the x-intercept is 7 .
♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️
To find the y-intercept ;
Just need to put 0((zero)) instead of x in the equation.
Let's do it....
3x - 7y = 21
3(0) - 7y = 21
0 - 7y = 21
-7y = 21
Divided sides by -7
-7 / -7 × y = 21 / -7
y = - 3
Thus the y-intercept is -3.
♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️
Chris P. Bacon owns 13 animals. Some are chickens and some are pigs. There are 40 legs in all. How many of each animal does Chris own?
it would be helpful to get the system for the equation as well.
wich equation shows 5 is a factor of 45
Answer:
5 times 9
Step-by-step explanation:
-Please help I need it super bad I don't want to fail :(
-All circles
1. Area of a 7cm circle?
2.Area of a 3cm circle?
3.Area of a circle with a radius of 21cm?
4.Sarahs dining room table is round and has a radius of 4.5feet. What is the tabletops area?
5.If the radius is 51 feet then what is the area?
6.What is the area of 5m?
7.What is the area of 10 inches?
8. What is the area of 12.5cm?
9.What is the area of 21ft?
10.What is the area of 4m?
Answer:
;-;
Step-by-step explanation:
1) 153.86cm²
2) 28.26cm²
3) 65.94cm²
4) 63.585cm²
5) 8167.14ft²
6) 78.5m²
7) 314in²
8) 490.625cm²
9) 1384.74ft²
10) 50.24m²
Table function rule of y=4x+1
Answer:
y=5
Step-by-step explanation:
y equals 5 because x is 1 when you get it alone
Zoe and Hannah share tips in the ratio 3:7. Last week, Zoe received £24. How much did Hannah receive last week?
Answer:
hannah gets £56
Step-by-step explanation:
z : h
3 : 7
24 : ?
24/3 = 8
8 x 7 = 56
£56
hope this helps
brainliest plz?
x
What is are SLOPE and EQUATION of the image?
Answer:
3
y=3x
Step-by-step explanation:
y=mx+b
y=3x+0
y=3x
George earns $9.50 per hour and $35.00 commission per sale, but he pays $12.00 in license fees each week. Mary earns $13.50 per hour and $11.25 for every defect she corrects, but she must pay $37.00 for tool rentals each week. The expressions below represent their individual earnings for every two-week pay period. George: 9.5h+35s−2(12) Mary: 13.5h+11.25d−2(37) where: h = the number of hours worked s = the number of sales George makes d = the number of defects Mary corrects
Answer:
23h+35s+11.25d-98Step-by-step explanation:
the question is incomplete here is the complete question
"George earns $9.50 per hour and $35.00 commission per sale, but he pays $12.00 in license fees each week. Mary earns $13.50 per hour and $11.25 for every defect she corrects, but she must pay $37.00 for tool rentals each week. The expressions below represent their individual earnings for every two-week pay period. George: 9.5h+35s−2(12) Mary: 13.5h+11.25d−2(37) where: h = the number of hours worked s = the number of sales George makes d = the number of defects Mary corrects if George and mary work the same hour each period, which expression represents their combined earning for one day earning period"
given
week pay period.
George: 9.5h+35s−2(12)
Mary: 13.5h+11.25d−2(37)
their combined earning is the sum of the individual earning
9.5h+35s−24
+13.5h+11.25d-74
23h+35s+11.25d-98
The expression is 23h+35s+11.25d-98
Jim's car repair charges $50 plus $16 for every pint of oil. Sam's car repair charges $80 plus $14 for every pint of oil. At how many pints of oil would the cost be the same?
Answer:
5 pints of oil for 8 dollars
Step-by-step explanation:
1.65 dollars for 1 pint
3.4/2=1.7 dollars for 1 pint
8/5=1.6 dollars for 1 pint
17.6/10=1.76 dollars for 1 pint
33/20=1.65 dollars for 1 pint
5(n-3)????????????!!!!!!!!
Answer:
5n-15Step-by-step explanation:
[tex]5(n-3)[/tex]
Expand
[tex]5\times n = 5n\\\\5\times -3 =-15\\\\5n -15[/tex]
Paul runs 4.8 km every morning. How many feet are in 4.8 km?
Answer:
15748 feet
Step-by-step explanation:
There are 3280.8 feet in 1 km, and if we multiply that by 4.8, we get a result of about 15748 feet. Hope it helps!
BRAINLIEST ANSWER IF CORRECT *ALOT OF POINTS*
Evaluate the piecewise function for f(-3)
Answer:
C should be correct man or cuz
Step-by-step explanation:
Answer:
C: 6
Step-by-step explanation:
You are going to evaluate the part of the piecewise function that contains -3 within its boundaries. -3 is less than -1, so you will use the first equation.
-2x
-2(-3)
6
what is the sum of the 18 and 42 as a product of their GCF.
Answer:
The answer is 6
Step-by-step explanation:
What is the slope of the line whose equation is y-4=5/2(x-2)
Answer:
m=5/2
Step-by-step explanation:
To find the slope, use the formula y=mx+b. m is the slope. The line with the equation y-4=5/2(x-2) gives us a slope of m=5/2. Hope it helps!
Simplify: 23x - 11x
Enter the original expression if it cannot be
simplified.
Answer:
23x-11x= 12x :)
Step-by-step explanation:
Answer: 12x
Step-by-step explanation: 23x-11x= 12x
The batting Wang Xiu Ying uses to fill quilts has a thermal conductivity rate of 0.030.030, point, 03 watts (\text{W})(W)left parenthesis, start text, W, end text, right parenthesis per meter (\text{m})(m)left parenthesis, start text, m, end text, right parenthesis per degree Celsius (^\circ\text{C})( ∘ C)left parenthesis, degrees, start text, C, end text, right parenthesis.
Answer:
Step-by-step explanation:
The question is incomplete. Here is the complete question.
the batting wang xiu ying uses to fill quilts has a thermal conductivity rate of 0.03 watts (W) per meter(m) per degree celsius. what is the batting thermal conductivity when w/cm•c
Given
K = 0.03W/m°C
Required
Convert K to W/cm°C
Since 1m = 100cm,
K = 0.03w/1×100cm°C
K = 3×10^-2w/10² cm°C
K = 3 × 10^-2w/10² cm°C
K = 3w× 10^{-2-2}cm°C
K = 3w×10^-4cm°C
K = 0.0003w/cm°C
Answer:
0.0003
Step-by-step explanation:
DID IT ON KHAN
and Since 1m = 100cm,
K = 0.03w/1×100cm°C
K = 3×10^-2w/10² cm°C
K = 3 × 10^-2w/10² cm°C
K = 3w× 10^{-2-2}cm°C
K = 3w×10^-4cm°C
K = 0.0003w/cm°C
In City A, the temperature rises 7 degrees F from 8AM to 9AM. Then the temperature drops 6 degrees F from 9AM to 10AM. In City B, the temperature drops 2 degrees F from 8AM to 9AM. Then the temperature drop 4 degrees F from 9AM to 10AM. Write an expression that represents the change in temperature from 8AM to 10AM for each city. Simplify and interpret each sum.
Answer:
is there like a image of this eqation?
Step-by-step explanation:
Hi, i really need help!
Look at the images below:
(there is 2 images per question)
Answer: the last one
Step-by-step explanation:
When an angle is rotated, its angle measure is equivalent to the angle measure of the original angle.
rotate the triangle through 180 about the origin
I don't exactly know what you're asking but if you need help with rotating a shape 180 degrees here is the little "formula":
(x, y) -> (-x, -y)
Left after party and you want to split it into four pieces what fraction of the original cake is each slice? A) 1/8. B) 1/4. C) 1/2. D) 2/1
Answer:
1/4
Step-by-step explanation:
because you are spitting it into fourths
Answer:
1/8
Step-by-step explanation:
$20 is 2% of what #?
Answer:
1000$
Step-by-step explanation:
2%=20
1%=20/2=10
100%=10×100=1000
Can someone please help me
Answer:i think 8
Step-by-step explanation:
Two Angles are Supplementary when they add up to 180 degrees. They don't have to be next to each other, just so long as the total is 180 degrees.
Please help! Will give BRAINLIESTwith to the first correct answer!
∠ABC and ∠DBC are complementary angles. If ∠ABC = 6x + 13 and ∠DBC = 4x − 3 what is the value of x?
Answer:
x=8
Step-by-step explanation:
A farmer stores bags of seed in 4 rows. There are 4 bags
in each row. How many bags of seed are there in all?
Answer:
16 bags in all
Step-by-step explanation:
4x4=16
Answer:16
Step-by-step explanation:
4*4 or 16/4 = 16
making sure my answer is correct. 2/7 + 7/14
Answer:
9 /14
Step-by-step explanation:
Answer:
I got 11/14
Step-by-step explanation:
I found a common demoninator of 14 I multplied 2/7 by two to get 4/14 then added the two fractions together
4/14+7/14 would equal 11/14
Find the value of x in the triangle shown below.
Answer:
55
Step-by-step explanation:
I believe it's 55 because the triangle has to equal 180
so I subtracted 70 from 180 and x can't be 70 because they don't have the same lengths
subtracting 70 from 180 gave me 110 then I divided by 2 since both the top angle and x would have the same angle in degrees xD
Amelia and her brother had a snow day, so they played in the snow for 3 hours. During that time, it snowed another 4.8 inches. If the snow fell at a steady pace, how much snow fell each hour?
Answer:
1.6
Step-by-step explanation:
The amount of snow fell each hour is 1.6 inches per hour.
What is Unit Rate?Unit rate is the amount of one quantity for a unit amount of the other quantity.
In other words it compares 1 unit of some quantity with different amount of another quantity
Given that,
Time Amelia and her brother played in the snow = 3 hours
Amount of snow fell at that time = 4.8 inches
That is 4.8 inches of snow per 3 hours
We have to calculate the unit rate of the amount of snow falling in an hour.
Amount of snow in 1 hour = 4.8 / 3 = 1.6 inches per hour
Hence the 1.6 inches of snow is falling per hour.
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