Answer:
2r
Step-by-step explanation:
2r is the answer because:
We have to switch the -3r in to +3r and positive + positive = positive.
Then we change the add sign in to subtracting sign and we subtract:
3r-5r and it will give us:
2r
And we keep the answer positive because our answer was a +5r so the bigger number keeps the sign the same.
3 times the length of a field increased by 4 times the width gives 24 units. Two times the length decreased by 3 times the width is -1 unit. Find the dimensions
Answer:
width = 3
length = 4
Step-by-step explanation:
Ok so you can form a system of equations where w is the width and l is the length:
3l + 4w = 24
2l - 3w = -1
you want to eliminate one of the variables and then solve, so you can first take the top equation and multiply both sides by 2:
6l + 8w = 48
next, multiply the second equation by 3:
6l - 9w = -3
now that both include 6l, you can subtract the two equations
6l + 8w = 48
- (6l - 9w = -3)
17w = 51
divide both sides by 17
w = 3
Plug w = 3 into the equation 3l + 4w = 24:
3l + 4 * 3 = 24
3l + 12 = 24
subtract 12 from both sides
3l = 12
divide both sides by 3
l = 4
Find the circumference. Use 3.14 for pi.
Answer:
62.8
Step-by-step explanation:
3.14 x 20 = 62.8
Its about 62.83
2π x radius
radius - 10 ( Half the Diameter )
Guys please help
which phrase has the same meaning as 12y - 2?
Answer:
subtract 2 from the product of 12 and y
Step-by-step explanation:
A ring-shaped region is shown below. Its inner radius is 8m, and its outer radius is 11m. 8m 11m Find the area of the shaded region. Use 3.14 for π. Do not round your answer.
Answer:
329.91 cm^2
Step-by-step explanation:
A ring-shaped region is shown below. Its inner radius is 8m, and its outer radius is 11m. 8m 11m Find the area of the shaded region. Use 3.14 for π. Do not round your answer.
Your answer
Given data
inner radius= 8cm
area= πr^2
area= 3.142*8^2
area= 3.142*16
area= 50.272 cm^2
outer radius= 11cm
area= πr^2
area= 3.142*11^2
area= 3.142*121
area= 380.182 cm^2
Hence the area of the shaded part is
=380.182-50.272
=329.91 cm^2
Find the mean,median,mode, and range:5,2,5,2
Answer:
Mean = 3.5
Median = 3.5
Mode = 5, 2
Step-by-step explanation:
Hope that helps!
Mean: To find the mean, simply add the numbers together and divide by the amount of numbers in the set:
Mean: (5 + 2 + 5 + 2)/4
= (14)/4
= 3.5
Mean = 3.5
Median: To find the median, simply order from least to greatest, and find the middle number in the set. That is your median. In the case of an even amount of numbers in the set, find the mean with the two median numbers (as in this case):
Median: (2 + 5)/2
= 7/2
= 3.5
Median: 3.5
Mode: The Mode is the number that shows up the most frequently. As both given numbers show up the same amount of times (twice), there is no mode.
Mode: None.
Range: The Range is found by subtracting the greatest number with the least number:
5 - 2 = 3
Range: 3
please help me with this for brainliest
Answer:
23
Step-by-step explanation:
4^2 = 16, 16 + 7 = 13
A drug company testing a pain medication wants to know the impact of different dosages on patients' pain
levels. They recruited volunteers experiencing pain to try one of 6 different dosages and then rate their pain
levels on a scale of 1 to 10. Here are the results:
Answer:
A
Step-by-step explanation:
I took the same khan Academy Quiz
The graph which best represents graph A thus option (A) is correct.
What is a graph?A graph is a diametrical representation of any function between the dependent and independent variables.
The graph is easy to understand the behavior of the graph.
As per the given data and graphs.
A good scatter plot will be having a reasonable scale on the x and y-axis.
In the graph, The average pain level is in the range of 2 intervals and dosage in 50 intervals as the data also have close to this range.
Thus, graph A represents the best scatter plot.
Hence "The graph which best represents graph A".
To learn more about graphs,
brainly.com/question/16608196
#SPJ2
The missing graphs are attached below,
HELP PLEASE !! URGENT !!
2 x 5 x 10 helppppppp
Answer: 100
Step-by-step explanation:2*5 =10 then 10*10 is 100
Answer:
100
Step-by-step explanation:
so, here is how to work this problem out
2*5 = 10
10*10 = 100
What’s the slope and y intercept?
Answer:
the slope is 15/2 and the y intercept is 0,0
Do the ratios 4/12 and 10/30 form a proportion? yes or no
Answer:
Yes because you can multiply the numerator and denominator by 2.5 to get 10/30 so it is proportional
Step-by-step explanation:
Answer:
No
Step-by-step explanation:
it makes 2/3 when reduced
1. simplify the following fractions: 12/36
Answer:
1/3
Step-by-step explanation:
12/36 = 6/18 = 3/9 = 1/3
Steve studies math for 7/8 of an hour and history for 2/3 of an hour. How many hours did he study?
Answer:
The answer is 1 13/24 hours or 1 hour, 32.5 minutes
Step-by-step explanation:
Find a common multiple of the denominators 3 and 8, which would be 24. Convert the fractions:
7/8 x 3/3 = 21/24.
2/3 x 8/8 = 16/24
Add the two numerators = 37/24 or 1 13/24.
1/24 of an hour is 2.5 minutes, so 13/24 is 32.5 minutes.
The answer is 1 13/24 hours or 1 hour, 32.5 minutes
Find the measure of the indicated angle to the nearest degree
Answer:
61.92°
Step-by-step explanation:
Sine Inverse of (75/85)
=61.92°
Plzz write with formula and explanation plzzzzzzzz answer fast
Answer:
Rs 19 1/8
Step-by-step explanation:
Fromm the above question, we are told that:
The cost of 2/3 meters of rope = Rs 12 3/4
We are asked to calculate the cost per meter of rope.
Hence:
2/3 meters of rope = Rs 12 3/4
1 meter of rope = Rs x
Cross Multiply
2/3x = 1 × 12 3/4
x = 12 3/4 ÷ 2/3
x = 51/4 ÷ 2/3
x = 51/4 × 3/2
x = 153/8
x = Rs 19 1/8
Therefore, the Cost per meter of rope = Rs 19 1/8
Erik used 28 centimeters of tape to wrap 7 presents. How much tape will Erik need in all if he has to wrap 12 presents? Solve using unit rates.
Answer:
Length of tape required to wrap 12 presents is 48 centimeters.
Step-by-step explanation:
Length of tape required to wrap 7 presents = 28 centimeters
Length of tape required to wrap 1 present = [tex]\frac{28}{7}=4[/tex] centimeters
Therefore,
Length of tape required to wrap 12 presents = 12 × Length of tape required to wrap 1 present
= 12 × 4
= 48 centimeters
Help ASAP I’ll give you brainlest
Answer:
5.33 OR 5 1/3
Step-by-step explanation:
3 x 2³ ÷ 2 x 4 -1 +2
3 x 8 ÷ 2 x 4 -1 + 2
24 ÷ 8 +1
24 ÷ 9
2.66 OR 2 2/3
I need the answer and how u solved it
Answer:
$1,920.00
Step-by-step explanation:
12,800 x 15%=1,920.00
PLEASE HELP ASAP
Jonathan has a rectangular rug with whose length is 5 inches less than its width. The area of the rug is 36 square inches
can someone help me plz
Answer:
Step-by-step explanation:
(2-4x)+(2-4x)+(-2x+8)=12-10x
Type the correct answer in the box. Use numerals instead of words. If necessary, use / for the fraction bar. If and , what is ? Write your answer in simplest form. When and , .
8 + 3n ≥ 38
can yall solve plzzz
PLS NEED DONE ASAP 10 MINUTES TILL DUE
The ratio of boys to girls at Longwood High School is 6:7. There are 1,722 girls in the High School. Write and solve a proportion that could be used to find out how many boys are in the High School. All algebraic steps must be shown for full credit. and steps algebraically.
Answer:
1476 boys
Step-by-step explanation:
We are going to use ratio here:
6/7=x/1,722
so then we simplify
(1,722*6)/7 =
1476 boys
20 points!!
Find the value of y when x=9.
y=1- 2x
Answer: The answer is -17
Step-by-step explanation:
Brainlist Plz?
Deepak is a landscaper who charges $30 for each job he does plus an additional $15 for each hour he works. He only accepts jobs if he will earn at least $90 per job. He writes this inequality to determine x, the number of hours he must work during each job in order to accomplish this.
30 + 15 x greater-than-or-equal-to 90
Which best describes the restrictions on the jobs Deepak will accept?
He only accepts jobs that last 4 or more hours.
He only accepts jobs that last 5 or more hours.
He only accepts jobs that last 8 or more hours.
He only accepts jobs that last 9 or more hours.
Answer:
4 or more hours
Step-by-step explanation:
I just took the test
Murray’s father deposited $6,000 of his savings into two accounts. One account earns 1.5 percent interest, and the other account earns 2.5 percent interest. At the end the year, the interest in the account that earned 2.5 percent was $110.00 more than the other account. Which system represents the amounts of money, x and y, that was put into each account?
x + y = 6,000. 0.025 x + 0.015 y = 110.
x + y = 6,000. 0.25 x + 0.15 y = 110.
x + y = 6,000. 0.025 x minus 0.015 y = 110.
x + y = 6,000. 2.5 x minus 1.5 y = 110.
Answer:
6000
Step-by-step explanation:
Answer:x+y = 6,000
0.025x-0.015y
Step-by-step explanation: did it on edge
Ava pours 3 gallons of paint equally into 5 cans. How many gallons of paint will there be in each can?
Answer:
0.6
Step-by-step explanation:
first you well have a 3 and then dived it by 5 and after you dived them to you well get the answer 0.6
At Garcia's Bike Rentals, it costs $45 to rent a bike for 8 hours. How many hours of bike use does a customer get per dollar?
Answer:
5
Step-by-step explanation:
Answer:
$0.09/minute
Step-by-step explanation:
$45/8 hours is $5.63 per hour
There is 60 minutes in an hour.
So you do $5.63/60 minutes and it's about $0.09
So it's 9 cents per minute
hope this helps :)
Can someone help me.
Answer:
A.5,683.0000
B. 1,289,293.0000
C.3,567,920.0000
Step-by-step explanation:
