Answer:
The speed of the plane in still air was 90 mph
The speed of the wind was 30 mph
Step-by-step explanation:
Your first step would be to make two equations so you can cancel them out and find what each variable is. So, I divided 1560 by 13 and got 120 mph which represents the plane's speed plus the wind's speed. Next, to find the speed of the trip to go back, I divided 1560 by 26 which got me to 60. This represents the plane's speed minus the wind's speed to find the way back. Once, you have these equations, line them up and use either method of elimination or substitution. I used elimination because you could see the variable "w" cancelling out very easily. Solve the equation and substitute the new value of the variable to get the other value.
p+w=120
p-w=60
--------------
2p=180
p=90
p+w=120--> 90+w=120--> w=30
W: 30 mph
P: 90 mph
I hope this helps!!
Choose the correct scale factor:
Pls help
Answer:
The image was dilated by a scale factor of 2. (x,y) -> (2x,2y)
Step-by-step explanation:
10. Karen wants to buy 5 pounds of baby carrots. The packages of
carrots each weigh 14 ounces. How many will she need to buy to
reach 5 pounds?
Answer:
She will have to buy 6
Step-by-step explanation:
I BEG U HELP MEEE PLEASEEE
Answer:
C
Step-by-step explanation:
-72.5 rational or irrational
Answer:
-72.5 is a rational number because it can be written as a fraction.
Kristine wants to do hardwood flooring for her room. A floor plan of the room (in feet) is shown how much hardwood flooring does she need.
Answer:
The answer is "[tex]116 \ ft^2[/tex] "
Step-by-step explanation:
Please find the complete question in the attachment file.
Calculating the sides of the room:
[tex]8\times 8=64\\\\12\times 2=24 \\\\2\times 6=12 \\\\4 \times 4=16\\\\[/tex]
adding the value of the side area:
[tex]\to 64+24+12+16=116[/tex]
can someone please help me with this.
Answer:a neither perpendicular nor parallel.
Step-by-step explanation:
Parallel would have the same slope, meaning same constant with x and perpendicular would be like 1/2x and -2
-269°
List the sign of each trig function for the given angle.
3(x + 1) - 2x = -6 what’s the answer??
Answer:
x=−9
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
3(x+1)−2x=−6
(3)(x)+(3)(1)+−2x=−6(Distribute)
3x+3+−2x=−6
(3x+−2x)+(3)=−6(Combine Like Terms)
x+3=−6
x+3=−6
Step 2: Subtract 3 from both sides.
x+3−3=−6−3
x=−9
y=23x+5 and
y=x+3
what is the solution
Answer:
I solved this like you would a system of equations - if that is not the answer you need LMK
Point form:
(- 1/11, 32/11)
Equation Form:
x = -1/11, y = 32/11
Step-by-step explanation:
(x² – 5x – 1)(x²+ 2x + 3)
answer
[tex] {x}^{4} - 3 {x}^{3} + 8 {x}^{2} - 17x - 3[/tex]
The line l is tangent to the circle with equation x2 + y2 = 17 at the point P.
Determine the equation of line l.
Write an equation in point-slope form for the line that passes through (3, 5) with a slope of 1.
Write an equation in point-slope form for the line that passes through (–2, 1) with a slope of 1/4 .
Answer:
y -5 = x-3;
y -1 = 1/4 (x+2)
Step-by-step explanation:
Point Slope form: [tex]y-y_{1} =m(x-x_{1}[/tex] , where m is the slope, and x1,y1 is the point.
1. y -5 = 1 (x-3)
y -5 = x-3
2. y -1 = 1/4 (x--2)
y -1 = 1/4 (x+2)
1. A rectangle has side lengths of 3x2 + 5x - 1 and -7x+1. Which of the following expressions represents the area of the rectangle?
a. 3x²-21
b. 3x² - 35x-1
c. -21x³ - 38x²- 2x - 1
d. -21x³ - 32x² + 12x - 1
please help
21x³-42x²+12x-1
[area of rectangle =length ×breadth
=(3x2 + 5x - 1)(-7x+1)
=3x²(-7x+1)+5x(-7x+1)-1(-7x+1)
=-21x³+3x²-45x²+5x+7x-1
=-21x³-42x²+12x-1
1. y = 6 x+8
2. y = 23 x
3. y = -x+ 5
4. y = 3 4 x - 212
5. y = 1,5 x + 11
Answer:
Not sure what you're asking here
Step-by-step explanation:
Part E
What is y = -1.5x + 121 rewritten as a recursive formula, where n represents
the number of minutes spent watching television and a represents the number of
minutes spent exercising?
A. a. = 1.5; a, = 2-1 - 121
B. a. 1.5; a, = a -1 + 121
C. a.
121; a = -1
- 1.5
D. a = 121; a, = 2,- +1.5
Andre and Elena are each saving money. Andre starts with $120 in his savings account and adds $5 per week. Elena starts with $50 in her
savings account and adds $15 each week
After 4 weeks how much will they have.
After how many weeks will they both have the same amount of money.
Answer:
140 for andre and elena will have 110 dollars
9-1 Similar Polygons
Are the polygons similar? If they are, write a similarity statement and give the scale factor.
A. No, the polygons are not similar.
B. Yes; POSN - KDAG; scale factor 5:4
C. Yes; PNSO - KGAD; scale factor 4:3
o
D. Yes; OSNP - DKGA; scale factor 3:5
Answer:
b
Step-by-step explanation: I have the answer key
The expression (3x²+x+8) + (x?- 9) is equivalent to?
Answer: 3x^2+2x-1
Step-by-step explanation:
A cheetah can run 110.352 kilometers per hours. A antelope can run 96.12 kilometers per
hour. How much faster is the cheetah than the antelope?
A 14.25 kilometers per hour
B 14 kilometers per hour
C 206.472 kilometers per hour
D 14.232 kilometers per hour
110.352-96.12=14.2320000
Answer:
D. 14.232 Kilometers
Step-by-step explanation:
110.352-96.12 = 14.232
pls give brainliest
[tex]343^{x-3}=49^{2x-2}[/tex]
Can someone help me with this ?
Answer:
The angle of 1 would be 63°
Step-by-step explanation:
the line is 180°, so if 3 is 117° then 2 is the same as 3. Making 1 and 4 the remaining degrees of the 180.
The admission free at a small is $ 1.50 for children and $ 4.00 for adults on a certain day $ 5,050 is collected if 1,000 adults attended the fair write and slove a linear equation to find the number of children that attended.
Answer:
c=children
a=adult
total amount=1.5c+4a
5050=1.5c+4*1000
1.5c=1050
c=700 childrens
Step-by-step explanation:
Which of the given pairs of expressions are equivalent? Select all that apply.
Answer:
sorry I don't know about this Question
find the are in millimeters plz.
Answer:
640 units squared
Step-by-step explanation:
First, the formula of a trapezoid is (a + b) x 2 divided by h
So, 40 + 24 = 64
64 x 20 = 1280
and 1280/2 = 640
Hope this helps!
The measure of an angle is 34.7°. What is the measure of its supplementary angle?
Answer:
Let the supplementary angle be x.
x+34.7°=180
or, x=180-34.7°
or, x=145.30°
:. x=145.30°
McKenzie delivers coupons to her neighborhood. This week she has 553 coupons to deliver. If she wants to give 7 coupons to each neighbor, which equation can be used to find the number of neighbors, n, to whom McKenzie can give coupons?
Answer:
Number of neighbors to whom McKenzie can give coupons = 79
Step-by-step explanation:
Coupons to deliver this week = 553
Coupons delivered to each neighbor = 7
which equation can be used to find the number of neighbors, n, to whom McKenzie can give coupons?
Let
n = number of neighbors to whom McKenzie can give coupons
n = Coupons to deliver this week / Coupons delivered to each neighbor
= 553 / 7
= 79
n = 79 neighbors
Number of neighbors to whom McKenzie can give coupons = 79
Which equation is graphed here?
A)y = 2 + 2/3x
B)y = 2/3x - 2
C)y = -2 - 2/3x
D)y = -2/3x + 2
Which is an arithmetic sequence?
Question 3 options:
-5, 6, 10, 13
1, 2, 4, 8
1, 4, 9, 16
3, 10, 17, 24
Answer:
3, 10, 17, 24
Step-by-step explanation:
The others don't have a common pattern so it is the last one.
The common difference in the last one is 7.
So the last one is the correct answer.
Hope this helps =]
An ordinary (fair) die is a cube with the numbers 1 through 6 on the sides (represented by painted spots). Imagine that such a die is rolled twice in succession and that the face values of the two rolls are added together. This sum is recorded as the outcome of a single trial of a random experiment.
Compute the probability of each of the following events.
Event A: The sum is greater than 6.
Event B: The sum is not divisible by 4.
Write your answers as fractions.
Find the area of the parallelogram.
Answer:
36 ft^2
Step-by-step explanation:
I) Find dimensions:
The base is 9 feet, and the height is 4 feet.
(Remember, 6 ft is not the height because that is the height of the parallelogram's parallel sides.)
II) Find area:
Area = base x height
A = B x H
36 = 9 x 4
III) Find unit:
Make sure to add the unit, it is ft^2 or ft² since this figure is three-dimensional and measured in feet.