Answer:
greg, 4 seconds
Step-by-step explanation:
find how long it takes each person to run 2km first.
distance/speed:
pepper: 2/3 *60(seconds)=40 secondsGreg: 2/5 *60= 24 seconds40-12=28 seconds, pepper will take 28 seconds to finish the race from the time greg starts. greg will win by 4 seconds
A bee flies at 10 feet per second directly to a flowerbed from its hive. The bee stays at the flowerbed for 18 minutes, and then flies directly back to the hive at 6
feet per second. It is away from the hive for a total of 23 minutes.
a. What equation can you use to find the distance of the flowerbed from the hive?
b. How far is the flowerbed from the hive?
Answer:
Step-by-step explanation:
d = distance from hive to flowers, in feet
flying time = 23 min - 18 min = 5 min = 300 sec
time flying to flowers = d ft × (1 sec)/(10 ft) = (d/10) sec
time flying to hive = d ft × (1 sec)/(6 ft) = (d/6) sec
d/10 + d/6 = 300 sec
:::::
d/10 + d/6 = 3d/30 +5d/30 = 8d/30 = 300
d = 300×30/8 = 1,125 ft
30POINTS
Two functions, A and B, are described as follows:
Function A
y = 8x + 3
Function B
The rate of change is 1 and the y-intercept is 4.
How much more is the rate of change of function A than the slope of function B?
1
7
8
9
at 1pm the level of water in the pool was 8 feet at 4pm the level of water was 2 feet find the constant rate of change of the water.
Answer:
2 feet
Step-by-step explanation:
1 pm = 8ft
2pm = 6ft The rate of change is 2
3pm = 4ft
4pm = 2ft
Use the substitution method to solve the system of equations. Choose the correct ordered pair. y=6x-4 y=7x-7 A. (4, 18) B. (5, 9) C. (3, 14) D. (2, 11)
Answer:
C (3,14)
Step-by-step explanation:
y=6x-4
y=7x-7
6x-4=7x-7
-x=-3
x=3
y=6*3-4=14
Please help me with this question
Answer:
-15c
Step-by-step explanation:
I'm sorry for not being able to explain but im sure that ma answer is correct.
I’m confused because I don’t know what I would put for “What scale factor takes the original polygon to its smaller copy”.
The scale factor that takes the original H-shaped polygon to its smaller copy is 1/4, which is the ratio of the lengths of corresponding sides in the copy and the original.
When a polygon is scaled, each side is multiplied by the same factor to create the corresponding side in the smaller copy. The scale factor is the ratio of the lengths of corresponding sides in the copy and the original.
Let's denote the scale factor as k. In this case, we are given that the smaller copy is a scaled version of the original, so the lengths of corresponding sides in the copy and the original are related by the scale factor:
[tex]Scale\ factor\ \(k = \frac{\text{Length of corresponding side in copy}}{\text{Length of corresponding side in original}}\)[/tex]
Given that the scale factor [tex]\(k = \frac{1}{4}\)[/tex], it means that each side in the smaller copy is one-fourth the length of the corresponding side in the original.
For example, if the original H-shaped polygon has a side of length 5 units, the corresponding side in the smaller copy would be [tex]\(5 \times \frac{1}{4} = 1.25\)[/tex] units.
This process applies to all sides of the original H-shaped polygon, and each side's length is multiplied by the scale factor to get the corresponding side length in the smaller copy.
So, the scale factor that takes the original H-shaped polygon to its smaller copy is indeed 1/4), which represents the ratio of the lengths of corresponding sides in the two polygons.
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7−2t≤21 write the solution in
Answer:
t≥-7
Step-by-step explanation:
7−2t≤21
Subtract 7 from each side
7-7−2t≤21-7
−2t≤14
Divide each side by -2, remember to flip the inequality
-2t/-2 ≥14/-2
t≥-7
Solve for p.
8 − 4(2p − 2) = 7 + p + 9
p =
p = 0
Step-by-step explanation:[tex]8 - 4(2p - 2) = 7 + p + 9[/tex]
➡️ [tex]8 - 8p + 8 = 16 + p[/tex]
➡️ [tex]16 - 8p = 16 + p[/tex]
➡️ [tex] - 8p = p[/tex]
➡️ [tex] - 8p - p = 0[/tex]
➡️ [tex] - 9p = 0[/tex]
➡️ [tex]p = 0[/tex]
Arrange 7/ 10 , 3/5 , 17/ 20 , 11/ 15 in descending order
Answer:
17/20 , 11/15 , 7/10 , 3/5
Please help I only have 15 minutes to complete this last one
Answer:
the slope of MN= -5-1/3-(-6)=-2/3
two lines are parallel>> slopes are equal
equation of line = (y-y'=m(x-x'))
therefore, y-1= -2/3(x-6)
y-1 = -2/3x + 4
y+2/3x=5
CAN SOMEONE HELP ME PLEASE
Answer:
2) 18
3) x = 17.5, LN = 105
Step-by-step explanation:
2) 6 + 12 = 18
3) 6x = 4x + 8 + 27
2x = 35
x = 17.5
6x = 6(17.5) = 105
The diameter of a regulation soccer ball is about 85 inches. This number was graphed on a number line.
g the graph of the diameter of the ball?
Answer:
Point D
8 3/5 = 40+3= 43
43÷5 = 8,6
........
School for Jan started at 9.00 a.m. and finishes at 3.00 p.m. If Jan knew she was 2∕3
of the way through the school day, what time was it then? Put in either am or pm
Answer:
it's 1 pm
you have to count the hours between 9 am and 3 pm = 6 then you divide 6 by 3 = 2 then 2*2= 4
How to do this? Please help
Step-by-step explanation:
This equations are quadratic equations, which is on standard form,
[tex] {ax}^{2} + bx + c[/tex]
where a is the leading coefficient, b is the second coefficient, and c is the constant.
Both a and b are in quadratic equation so we need to find the constant separately.
Both sides are equal to zero so we can just subtract the terms not containing a or b in them to the opposite side.
[tex] {x}^{2} - 4 x + a = 0[/tex]
[tex] {x}^{2} + a = 4x[/tex]
[tex]a = - {x}^{2} + 4x[/tex]
For b,
[tex]2 {x}^{2} - 6x + b + 7 = 0[/tex]
[tex] - 6x + b + 7 = - 2 {x}^{2} [/tex]
[tex]b + 7 = - 2 {x}^{2} + 6x[/tex]
[tex]b = - 2 {x}^{2} + 6x - 7[/tex]
Erik bought a mattress that was marked down 70% from an original price of $500. If the sales tax in Oak Grove is 8%, what was the total cost of the mattress?
Answer:
Btw the result are this: 70% = 0.7500 = 0.78% = 0.08 In Oak Grove
Step-by-step explanation:
The total cost of the mattress is $162 after markdown 70% and sales tax 8%
Given :
Erik bought a mattress that was marked down 70% from an original price of $500
Original price is 500 dollars
marked down that is discount percentage is 70%
Lets find the discount amount using original price
markdown percentage times original price
[tex]discount = \frac{70}{100} \cdot 500=350[/tex]
cost of mattress after discount is 500-350= 150 dollars
sales tax is 8%
now we find the tax amount for 150 dollars
[tex]tax=150 \cdot \frac{8}{100} \\tax = 12[/tex]
tax is 12 dollars
the total cost of the mattress= cost of mattress +tax
the total cost of the mattress=150+12=162
the total cost of the mattress is $162
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I need help with 18-27
Answer:
18-27= 01
Step-by-step explanation:
18
-27
---------
01
the one cancels out
plz help. show work too
Answer:
56mm²
Step-by-step explanation:
i will appreciate if u give brainliests, thanks
I need help pleaseeeess
Pls help ASAP for 15 point
Answer:
[tex] \sqrt{ - 17 } \\ 20\% \\ 1 \times \frac{1}{2} \\ \sqrt{17} \\ 8[/tex]
Evaluate the equation.
193b = 212.3
A. b = 40,973.9
B. b = 40,873.9
C. b = 1.1
D. b = 0.9
Answer:
C
Step-by-step explanation:
193b=212.3
193b/193=212.3/193
(divide by 193 to get the value of b)
193 cancels 193
b= 1.098445596
(round off to one decimal place)
b=1.1
Hope its helps ❤️
Finding number of x
X+7=3
Answer:
x=3-7
x=-4
this was your answer
Answer:
x = -4
Step-by-step explanation:
Use inverse operations to solve the given equation,
x + 7 = 3
(Subtract (7) from both sides,
x + 7 - 7 = 3 - 7
Simplify,
x = -4
Simplify square root of -200
Answer:
14.1421356i
Step-by-step explanation:
hope it helps
20. Your friend says the absolute value equation |2x + 9 + 7 = 3 has two solutions
because the constant on the right side of the equation is positive. Is your friend
correct? Explain.
This is an absolute value problem. In mathematics, absolute value is simply defined as the distance of a number from zero on the number line, irrespective of the direction on either side of zero.
In the absolute value given which is; |2x + 9| = -4, we can see that there is an absolute value when the right hand side is negative and not when it is only positive.
Thus, the friend is not correct.We are given the equation;
|2x + 9| + 7 = 3
Now when dealing with absolute values, it means that the solution is either positive or negative.
For example;
|x| = 5 means that x = +5 or -5
Thus in this question, let us first of all simplify the equation to get;
|2x + 9| = 3 - 7
|2x + 9| = -4
From |2x + 9| = -4, we can see that there is an absolute value when the right hand side is negative and not when it is only positive.
Thus, the friend is not correct.
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|x|-5 what does the vertical bar means?
Answer:
it means absolute valuen so anything inside becomes a positve.
Step-by-step explanation:
can someone help me please?
Answer:
Its 15
Step-by-step explanation:
a^15 / a^3
= a^15-3
= a^12
Use law of indices.
hcf of x^2 - y^2 + 4y - 4
Answer:
[tex](x - y + 2) \times (x + y - 2)[/tex]
Step-by-step explanation:
[tex] {x}^{2} - {y}^{2} + 4y - 4[/tex]
➡️ [tex] {x}^{2} - ( {y}^{2} - 4y + 4)[/tex]
➡️ [tex] {x}^{2} - (y - 2 {)}^{2} [/tex]
➡️ [tex](x - (y - 2)) \times (x + (y - 2))[/tex]
➡️ [tex](x - y + 2) \times (x + y - 2)[/tex]
The perimeter of a rectangle is 74 inches. If the length is five more than the width, what are the rectangle's measurements?
O length = 19; width = 18
O length = 22; width = 15
O length = 20; width = 17
O length = 21; width = 16
O None of these choices are correct.
Answer:
None of these choices are correct.
Step-by-step explanation:
75 = perimeter
Which expression has the same value as -5, + (-4)?
Submit Answer
0 -5 8 3 - 4 2 3
O 4; -(-5%)
O 5+(-4)
O-52-(-41)
Find FH? this is 10th-grade geometry
Answer:
7
plss mark me brainlestt
Step-by-step explanation:
22-15=7
A line segment is also a line but a line with finite length and fixed endpoints. The length of the line segment FH is 7 units.
What are a line and line segment?A line is a one-dimensional shape that is straight, has no thickness, and extends in both directions indefinitely.
A line segment is also a line but a line with finite length and fixed endpoints.
Given that the length of the line segment HG is 15 units and the length of line segment FG is 22 units.
Since the line segment, FG is made from FH and HG. Therefore, we can write,
FG = FH + HG
22 units = FH + 15 units
FH = 22 units - 15 units
FH = 7 units
Hence, the length of the line segment FH is 7 units.
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What is the solution to the equation 1/4x - 1/8 = 7/8 + 1/2x ?
A. x = -5
B. x = -4
C. x = 4
D. x = 5
Hey there! I'm happy to help!
We want to get all of the variables on the left side and all of the numbers on the right side. This will allow our variable to be isolated so we can see what it is equal to.
1/4x - 1/8 = 7/8 + 1/2x
We add 1/8 to both sides.
1/4x=1+1/2x
We subtract 1/2x from both sides.
-1/4x=1
We divide both sides by -1/4 (same thing as multiplying -4).
B. x=-4
Have a wonderful day and keep on learning! :D