Answer:
110kmStep-by-step explanation:
"Carlos travelled a certain distance from home to the campgrounds on his dirt bike at a speed of 50 km/h and returned at a speed of 60 km/h. How can carlos find the distance between his home and the campgrounds if the total time traveling was 11 hours"
Given data
initial speed u=50km/h
final speed v=60km/h
time taken t=11hours
change in speed= 60-50
=10km/h
we know that the expression for speed is given as
speed= distance/time
let the distance be x
10=x/11
x= 10x11
x=110km
Therefore the distance is 110km
1 Thomas uses a graphing calculator to solve the following word problem. Two shirts and five pairs of pants cost $150. Three shirts and four pairs of pants cost $190. Find the cost of a shirt. Select the statements that describe the steps that Thomas can use to solve the problem using his graphing c A Let x equal the cost of a shirt and y equal the cost of a pair of pants. B Solve each equation for y. c Solve each equation for r. D The solution is the point where the lines intersect. E The solutions are the points where the lines intersect the y-axis.
Answer:
The correct options are;
A. Let x equal the cost of a shirt and y equal the cost of a pair pants
B. Solve each equation for y
D. The solution is the point where the lines intersect
Step-by-step explanation:
The cost of two shirts and five pants = $150
Three shirts and four pairs of pants = $190
Let x = The cost of a shirt and y = the cost of a pair of pants
We have;
2·x + 5·y = 150
3·x + 4·y = 190
We solve each equation for y, to get;
For the first equation, we have;
2·x + 5·y = 150
5·y = 150 - 2·x
y = 150/5 - 2/5·x = 30 - 2/5·x
y = 30 - 2/5·x
For the second equation, we have;
3·x + 4·y = 190
4·y = 190 - 3·x
y = 190/4 - 3/4·x = 47.5 - 3/4·x
y = 47.5 - 3/4·x
The solution is the point where the two lines intersect, which is given as follows;
y = y
47.5 - 3/4·x = 30 - 2/5·x
17.5 = 3/4·x - 2/5·x = 7/20·x
x = 20/7 × 17.5 = 50
The cost of a shirt = x = $50
The cost of a pair of pant = y = 30 - 2/5·x = 30 - 2/5 × 50 = 10
The cost of a pair of pant = $10.
recipe says that 2 cups of rice will serve 6 people. Determine how many people can be served with 10 cups of rice and how many cups of rice you need to serve 45 people. Cups of Rice i need answers
Answer:
10 cups for 30 people
15 cups for 45 people
Step-by-step explanation:
Since this is a ratio problem and we only need to find the value of one variable (how many people can be served) then we can use the Rule of Three to solve this problem like so...
2 cups <========> 6 people
10 cups <========> x people
(10*6) / 2 = x ... cross multiply the two available numbers and divide by the third
30 people = x
We can now see that 10 cups of rice can feed 30 people ... Now we can use the same process to find the number of cups needed for 45 people.
2 cups <========> 6 people
x cups <========> 45 people
(45*2) / 6 = x
15 cups = x
I NEED THE ANSWER PLEASE
Answer:
Not a function because some x values have multiple y values
Step-by-step explanation:
The meaning of a function is that an x value can only have on y value. If we were to pass a vertical line through this graph, we would find that about 2 points would be hit every time. This tells us that the x values have multiple y values and it's not a function.
3. If 3 men or 4 women can earn 240
in a day, find out how much will 7
men and 11 women earns in 6 days?
Answer this !
Answer:
440
Step-by-step explanation:
240 divided by 6 is 40, 4 women. and 11 x40 is 440.
Answer:
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Decide whether the statement is true or false. If false, rewrite the
right-hand side of the equation so the statement is true.
1. 4(2 + 7)? 4(2) +7
Answer:
It's False
4(2 + 7) = 4(2) + 4(7) = 36
Step-by-step explanation:
4(2 + 7) = 36
4(2) +7 = 15
Which statement is not true about the line represented by the equation
PLZ HURRY
x + 2y = 14?
A,The slope is 1.
B.If x = 10, then y = 2
C.The y-intercept is (0, 7)
D. The x-intercept is (14, 0)
Answer:
A is false
Step-by-step explanation:
Pat bounces a basketball 25 times in 30 seconds. At that rate, approximately how many
times will Pat bounce the ball in 150 seconds?
А
120
B
125
с
144
D
145
Answer:
The answer is B
Step-by-step explanation:
If it takes 30 seconds to bounce the ball 25 times, you divide 150 by 30 and get 5 which you multiply times 25 to get 125.
Brainliest if correct
Answer:
20
Step-by-step explanation:
4+40-3(8)
44-24
20
Answer: 20
Step-by-step explanation:
(2)^2+4(10)-3(10-2)
PEMDAS!
(2)^2+4(10)-3(8)
4+4(10)-3(8)
4+40-24
44-24
20
What does the solution of a linear inequality represent?
The converse of “If x=3, then 5x=15” is “If x≠3, then 5x≠15
True or false
Answer:
True
Step-by-step explanation:
This is true beacuse if x=3, then you would get this answer: 5(3)=15
But, if x does not equal 3 you wouldn't get 15. Instead, you'd get a differet number.
1. (02.01 LC)
Simplify (4.5)(5)(-2).
Answer:
-45
Step-by-step explanation:
i took the test and it was right
Two angles are supplementary. If one angle measures 46 degrees, how many degrees are in the other angle? *
Answer:
134
Step-by-step explanation:
180-46=134
I NEED HELP ASPS PLZZ
Answer:
The answer would be C
Step-by-step explanation:
If you take 24 and divide 2 you get 12 so 12 times 2 would be 24.
Marshall bought 20 refills and sold Them at $4 each. If it had cost $ 50 for the refills, what his profit or loss percentage
Answer:
cost = 50
sold price = 20 × 4 = 80
he have profit
percent =
the profit percent is 62.5
HOPE ITS HELPFUL
AND MARK AS BRAINIEST
Step-by-step explanation:
Find the sum (c- 4) + (3c + 9)
Answer:
4c+5
Step-by-step explanation:
add the c values which is 4. then add all other values which is 5
I believe its
4c+5
If I'm wrong srry
GIVING BRAINLIST PLEASE HELP
In the figure at the right, if PQ is perpendicular to QR,
then a + b + c + d =?
P
A) 180°
B) 225°
C) 270°
D) 360°
Answer:
a + d = 90
c + b = 180
==> C) 270
-6=v-19w solve for v
Kayla and her children went into a restaurant and she bought $63 worth of hotdogs
and tacos. Each hotdog costs $3.50 and each taco costs $4. She bought 3 more
hotdogs than tacos. Write a system of equations that could be used to determine the
number of hotdogs and the number of tacos that Kayla bought. Define the variables
that you use to write the system.
Answer:
I think the equation would be 3.5x-4y=63
x=10
y=7
Step-by-step explanation:
On a planet, a rock is dropped from the top of a 400-foot cliff. After 1 second, the rock is traveling feet per second. After seconds, the rock is traveling feet per second.
a. Assume that the relationship between time, t, and speed, s, is linear and write an equation describing this relationship. Use ordered pairs of the form (time, speed).
b. Use this equation to determine the speed of the rock seconds after it was dropped.
Answer:
sorry i do not know . i just need to answer this. no hard feelings
Step-by-step explanation:
Find the product.
(9a^2 +8b) (a^2 - b)
Answer:
9a4−a2b−8b2
Step-by-step explanation:
=(9a2+8b)(a2+−b)
=(9a2)(a2)+(9a2)(−b)+(8b)(a2)+(8b)(−b)
=9a4−9a2b+8a2b−8b2
Help!!!!!! I need help asapppopopppppp
Answer:
9072
Step-by-step explanation:
Use absolute value to find the distance between −112 and 114 .
Enter your answer, as a mixed number in simplest form, in the box.
Answer:
2
Step-by-step explanation:/-112/=112 and /114/=114 then you subtract and the answer is 2
in what quadrant can you find the point (-5,4)
Answer:
Quadrant II
General Formulas and Concepts:
The top right square of the Cartesian Plane is the First Quadrant.
The top left square of the Cartesian Plane is the Second Quadrant.
The bottom left square of the Cartesian Plane is the Third Quadrant.
The bottom right square of the Cartesian Plane is the Fourth Quadrant.
Read the Cartesian Plane counterclockwise starting from the top right.
Step-by-step explanation:
Step 1: Define
(-5, 4)
x = -5
y = 4
Step 2: Find
We know since x = -5, our point is either going to be in Quadrant II or IIISince y is positive (4), it will go up, meaning that the point will be in Quadrant IIGraph f(x)=−0.25x+4.
Use the line tool and select two points to graph the line.
My graph only goes from 1-10!
Si al triple del cuadrado de un número se le suma siete veces el mismo número se obtiene por resultado 10. ¿Cuál es ese número?
Answer:
The value of the number is either 1 or -10/3
Step-by-step explanation:
If the same number is added to triple the square of a number seven times, the result is 10. What is that number?
Let the number = x
Therefore, we have;
3·x² + 7·x = 10
Therefore, we have;
3·x² + 7·x - 10 = 0
Dividing by 3 gives;
x² + 7/3·x - 10/3 = 0
Factorizing gives;
(x - 1)·(x + 10/3) = 0
x = 1 or -10/3
The number is either 1 or -10/3.
Earth travels 30 kilometers each second as it revolves around the Sun. How many miles does Earth travel in 1 second?
Answer:
18.64 Miles
Step-by-step explanation:
for what value of x is g(x)=5
please helppppp me i need answers really fast I'm so confused!! i'll give brainliest to the correct answer
Find the values of x and y.
A. x = 129, y = 51
B. x = 51, y = 129
C. x = 66, y = 17
D. x = 17, y = 66
Answer:
C
Step-by-step explanation:
129=2x-3
132=2x
x=66
129+3y=180
180-129=3y
51=3y
y=17
Linda has 57 coins consisting of nickels, dimes, and quarters. She has twice as many dimes as nickels. If the coins are worth a total of $7.25, write system of equations is used to determine how many of each coin Linda ha
Answer:
64.25
Step-by-step explanation:
57+7.25=64.25
Hurry PLEASE!. i need help
Answer:
a)102 b)76.5%
Step-by-step explanation:
20 percent of 85 is 17 so you would add the two to get 102. For the second one, 65 is x percent of 85, of means multiply so 85x/100=65 85x=6500
6500/85= approximately 76.4705, rounding this to the nearest hundredth to get 76.50