Answer: n/2, n/2+1
Step-by-step explanation:
Consecutive numbers are always 1 more than the previous (n, n+1, n+2, n+...), and their sums are (like) n+n+1 or 2n+1 (n is the first number).
So in this situation (x is the first number);
n+1=x+x+1
n=x+x, n=2x
n/2=x
Meaning that the first number is n/2, and the second (n/2)+1 or just n/2+1.
I'm bad at explaining.
Which expression can be used to find the total number of marbles in 2 bags if there
are 9 marbles per bag?
Help pls
the total number of marbles in 2 bags is 18.
What is multiplication?In mathematics, multiplication is a method of finding the product of two or more numbers. It is one of the basic arithmetic operations, that we use in everyday life.
here, we have,
there are 9 marbles per bag.
the total number of marbles in 2 bags
=2*9
=18
hence, the total number of marbles in 2 bags is 18.
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CAN SOMEONE PLEASE HELP ME!!!!!!!
Blake made a rectangle table for his dining room. The sides are 12Feet and 4 feetWhat is the Length of the diagonal table
Step-by-step explanation:
the diagonal of the table is 12.65. hope it helps
factory makes car batteries. The probability that a battery is defective is 1/14. If 400 batteries are tested, about how many are expected to be defective?
A) 14
B) 371
C) 29
D)35
The required number of defective batteries is 29 out of 400 batteries tested. Option C. is correct.
The probability that a battery is defective is 1/14. The probability that a battery is defective is 1/14. If 400 batteries are tested, how many are expected to be defective s to be determined?
Probability can be defined as the ratio of favorable outcomes to the total number of events. it can be denoted as,
Probability = number of favorable outcomes / total sample space
The probability that a battery is defective given by,
P(D) = 1/14 = 0.072 or 7.2%
400 batteries are tested while multiplying the defective percentage to the number of batteries it gives the defective number of batteries
Number of defective batteries,
= 400 * 7.2%
= 400 * 7.2/100
=≈ 29
Thus, the required number of defective batteries is 29 out of 400 batteries tested. Option C. is correct.
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what problem could happen if judges only used whole numbers instead of decimals to keep scores? What problems might arise?
The point (2, -1) is on the line 2x + y = 5.
Answer:
No
Step-by-step explanation:
Substitute by x = 2 and y = - 1
You will get 2*2 + (-1) = 3 not 5
Then it doesn't lie
(3x + 24) = (8x-11) what is the answer
Answer:
7
Step-by-step explanation:
(3x + 24) = (8x-11)
24=5x-11
35=5x
x=7
Answer:
7
Step-by-step explanation:
WHICH OF THE FOLLOWING VARIABLES ( WRITTEN IN BOLD) HAVE A PROPORTIONAL RELATIONSHIP????
Answer:
a
Step-by-step explanation:
ur basically just saying that uts increasing by the same amount when one variable in the equation changes
The perimeter of a rectangular photograph is 28 inches. If the width of the photo is 5 inches, how tall is the photo?
Answer:
it is 9 inches tall
Step-by-step explanation:
p=2L + 2W
28=2L + 2 x 5
28=2L +10
28-10=2L
18=2L
L=9
Answer:
9 inches.
Step-by-step explanation:
Since the width of the rectangle is 5 inches, We have to times it by 2 which is 10.
Then deduct it from the perimeter of 28, which equals to 18. We have to divide it by 2 so we can find out how tall each side is. 18 divided by 2=9.
Hope that helps.
Solve the inequality 4y+3y>2y+14
Answer:
Y>14/5
Step-by-step explanation:
Hope I helped:)
Answer:
y>14/5
Step-by-step explanation:
4y+3y>2y+14
Step 1: Simplify both sides of the inequality.
7y>2y+14
Step 2: Subtract 2y from both sides.
7y−2y>2y+14−2y
5y>14
Step 3: Divide both sides by 5.
5y/5>14/5
y>14/5
2. Evaluate x(-y + z) for x = -1, y = 2, and z = 5.
A 7
B 3
C-7
D-3
This is hard........ help please?
Answer: C.
There are 215 total students in the band.
There are 27 seniors in the band.
The probability is found by dividing the number of seniors in the band by the TOTAL number of students in the band.
P(S|B) = 27/215 = 0.1255813953
You have to round off the answer too the nearest tenth.
P(S|B) = 0.13
If the two lines below are perpendicular and the slope of the red line is - 5/2
what is the slope of the green line?
Answer:
B
Step-by-step explanation:
What is the area of the square?
A square has side lengths of 10.6 yards.
21.2 yd2
36 yd2
42.4 yd2
112.36 yd2
A square has side lengths of 10.6 yards. So, the area of a square would be equal to 112.36 yd sq.
What is the area of a square?The area of a square can be calculated as the square of the sides of a given figure.
The area of a square = side x side
We have given information as
A square has side lengths of 10.6 yards.
And since it is a square, all sides are equal.
The area of a square = side x side
[tex]10.6 \times 10.6\\\\112.36\: yd^2[/tex]
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Estimate the percent
r% of 5 is 14
Look at the attached picture
Hope it will help you
Good luck on your assignment
Answer:
[tex]r = 280\%[/tex]
Step-by-step explanation:
[tex]r\% \times 5 = 14 \\ \frac{r}{100} \times 5 = 14 \\ \frac{5r}{100} = 14 \\ r = \frac{14 \times 100}{5} \\ r = 280\%[/tex]
hope this helps
brainliest appreciated
good luck! have a nice day!
The area of a circle of radius 10 units is equal to the surface area of a sph
of radius 5 units.
Answer:
it is 15
Step-by-step explanation:
Five friends agree to save money for a graduation road trip. They decide that
each of them will put $0.25 in the fund on the first day of May, $0.50 on the
second day, $0.75 on the third day, and so on. At the end of May, there will be
$_ in their fund. (Hint: There are 31 days in May.)
Answer:
$620
Step-by-step explanation:
First you have to figure out the amount one of them would add which is $124. You would do this by adding .25+.50+.75+1 ect. Then once you know how much one of them would add you do 124(5) and get $620.
The probability it will rain tomorrow is 20%. which word or words best describes the likelihood of it raining tomorrow?
Answer:
There is a 20% likelihood of it raining tomorrow.
Step-by-step explanation:
Please, if I get this wrong I fail please help me, it will mean a lot to me
Answer:
x = 58°
Step-by-step explanation:
First, we need to find the green angle on the bottom left of the triangle.
We know that straight lines are supplementary, or equal 180 degrees, so we can say that 114° + a (a variable representing the measure of the angle) = 180°.
Equation:
114 + a = 180
Solve:
114 + a = 180
-114 -114
a = 66
Therefore, the value of the green angle is 66 degrees.
Now, we need to find the value of angle x.
We know that the sum of the angles in a triangle is 180 degrees.
So, 56° + 66° + x = 180°
Equation:
56 + 66 + x = 180
Add:
56 + 66 + x = 180
122 + x = 180
Subtract:
122 + x = 180
-122 -122
x = 58
Therefore, x is 58 degrees.
Answer:
58
Step-by-step explanation:
An exterior angle is equal to the two remote interior angles. It would be easier to understand that just by adding the numbers in an equation.
Exterior angle = 114
Remote interior angles = x and 56
exterior angle = sum of x and 56 which are the two remote interior angles.
x + 56 = 114 Subtract 56 from both sides.
x+56-56=114-56
x = 58
The graph represents this system of equations.
What is the solution to the system of equations?
y=4
v=3 -
(-2,4)
(3, 4)
(4, -2)
O (4,3)
2
1
-54
3
-2
-1
2
3
4
5
-3
4
Answer:
(- 2, 4 )
Step-by-step explanation:
The solution to a system of equations given graphically is the point of intersection of the 2 lines.
The point of intersection is (- 2, 4 )
Thus the solution is (- 2, 4 )
Answer:
(-2,4)
Step-by-step explanation:
edg. 2020
what is the length of the radius in circle C
A 943-foot tree has grown at a constant rate each year. In the equation below, t is the age of the three in years.
23t=943
what is the unit rate in the equation above?
A. 943 feet per year
B. 41 feet per year
C. 920 feet per year
D. 23 feet per year
Answer:
B. 41 feet per year
Step-by-step explanation:
943/23= 41
Total feet / coefficient= feet per year
What is the solution to the system of equations graphed below?
I’m in the middle of the quiz, help me pls :c
Answer:
(4,2) is the answer
help me with my math work really appreciate
find the volume of a cone with a base diameter of 8 yd and a height of 9 yd
use the value 3. 14 for pie and do not do any rounding
Answer:
V = 150.72 yd³
Step-by-step explanation:
To find the volume, we will need to use the formula [tex]V = \frac{1}{3}bh[/tex]
To find the base, we will need to use the volume of a circle, which is [tex]A = \pi r^{2}[/tex].
If the diameter is 8, the radius is half which is equivalent to 4. Put this into the equation:
A = π4²
A = 16π ≈ 50.24.
Now, use this in the Volume of a Pyramid formula:
V = 1/3 (50.24 ·9)
V = 150.72 yd³
b)work out the probably that the number is in the set AnB
Answer:
26
Step-by-step explanation:
because number 26 is in the both sets
what is the equation for m/4+8=10
Answer:
M=8
y=mx+b
so y=8x+b
Step-by-step explanation:
1) Andy drove 840 miles in 12 hours. How far could he drive in 3 hours?
Unit rate (speed) _____
Distance _____
2) Pira drives 825 miles to California. The trip takes 17 hours. He uses 38 gallon of gas on the trip, which costs him $125.
Find his speed
Find his gas mileage
Find the unit price he paid for gas.
Answer:
Step-by-step explanation:
Mr. Anderson drove 168 miles in 3 1/2 hours: d1 = 168 mi
t1 = 3 1/2 hr
t1 = 3.5 hr
v1 = the first rate
v1 = d1/t1
v1 = 168/3.5
v1 = 48 mph
He then drove 2 1/4 hours at a rate of 5 miles an hour faster than the first rate:
t2 = 2 1/4 hr
t2 = 2.25 hr
v2 = v1 + 5
v2 = 48 + 5
v2 = 53 mph
d2 = the distance
d2 = v2*t2
d2 = 53*2.25
d2 = 119.25 mi
during the total time 3 1/2 + 2 1/4 = 5 3/4 hr Mr. Anderson drove:
d1 + d2 = 168 + 119.25 = 287.25 mi.
Hope that helps :)
in bowling you get a spare when you knock down the ten pins in two throws. how many possible ways are there to get a spare?
Answer:
There are 9 ways to get a spare
1 and 9
2 and 8
3 and 7
4 and 6
5 and 5
6 and 4
7 and 3
8 and 2
9 and 1
Step-by-step explanation:
Can someone please help me out?
Answer:
36 or b
Step-by-step explanation:
6x3x3
Answer:
For Volume: 54ft^3
For Surface Area: D. 90ft^2
Step-by-step explanation:
Volume formula of rectangular prism: V = L * W * H
By replacing the variables with the given numbers we get the following:
V = 3ft * 3 ft * 6 ft
By multiplying, we get 54ft^3.
Surface Area formula of rectangular prism: SA = 2 (L*W + L*H + W*H)
By replacing the variables with the given numbers we get the following:
SA = 2 (3*3 + 3*6 + 3*6)
By multiplying, we get:
SA = 2 (9 + 18 + 18)
We add the numbers inside the parenthesis, then we multiply by two to get the following:
SA = 90 ft^2
will make bianleast no picture
Which of the following side lengths can form a triangle?
23, 28, and 55
24, 24, and 47
15, 30, and 45
8, 17, and 25
Answer: 24, 24, 47
Step-by-step explanation:
In order to form a triangle, the sum of two sides must be GREATER than the third side for all combinations.
a + b > c & a + c > b & b + c > a
23 + 28 = 51 which is NOT greater than 55
15 + 30 = 45 which is NOT greater than 45
8 + 17 = 25 which is NOT greater than 25
24 + 24 > 47 & 24 + 47 > 24 & 24 + 24 > 27
all combinations are true so these side lengths can form a triangle