Andy has entered a race. The participants have to run 14 meters. Andy finishes the race in 7 seconds. What is Andy's average speed? A. 2 m/s B. 5 m/s C. 25 m/s D. 4 m/s
Answers
Answer:
2m/s
Step-by-step explanation:
Speed=distance/time taken
=14/7
=2m/s
Related Questions
14 3/4 + (-21 1/2 ) ( 14 and -21 are part of the fraction)
Answers
Answer:
21
Step-by-step explanation:
HELP ASAP!! A student is painting a brick for his teacher to use as a doorstop in the classroom. He is only painting the front of the brick. The vertices of the face are (−4, 2), (−4, −11), (4, 2), and (4, −11). What is the area, in square inches, of the painted face of the brick?
A. 42 in2
B. 52 in2
C. 104 in2
D. 128 in2
Answers
Answer:
104in2
Step-by-step explanation:
The area, in square inches, of the painted face of the brick is Option C 104 \(in^{2}\).
Using the Quadrant system of the Number line
B (-4,2) lies in the 2nd quadrant.
C (-4,-11) lies in the 3rd quadrant
A (4,2) lies in the 1st quadrant
D (4,-11) lies in the 4th quadrant
Length of Side AB= Length of Side CD= Distance between x coordinate of A & B OR Between C & D i.e. 8 in
Length of Side BC= Length of side AD= Distance between y coordinate of A & D OR Between B & C i.e. 13 in
Area of the Square ABCD= (length of Side AB or CD) X (Length of Side BC or AD)
= (8 x 13) \(in^{2}\)
= 104 \(in^{2}\)
Thus, Area of square is 104 \(in^{2}\).
To learn more about area: https://brainly.com/question/25292087
Serious. SOLVE CORRECTLY AND SHOW WORKKKK! Explain how you got it throughly.
Answers
Step-by-step explanation
7x + 1039 = 245x
Please help!
Answers
Answer:
x = 4.37
Step-by-step explanation:
7x + 1039 = 245x=> 1039 = 238x=> x = 4.36554621849 (Using calculator)=> x = 4.37 (Estimated)Conclusion:
Therefore, x = 4.37.Hoped this helped
\(GeniusUser\)
Answer:
\(\frac{1039}{238}\)
Step-by-step explanation:
7x + 1039 = 245x
Minus the smallest x from the largest.
1039 = 245x - 7x
1039 = 238x
Divide 1039 by 238x to find the x
\(\frac{1039}{238}\) = x
Which scenario can be modeled by the linear function
y = -15x + 500?
A. The temperature on Jupiter is
15℉ and increases by 500℉ every day.
B. There is a population of 500 giraffes in Western Africa that decreases by 15 giraffes each year.
C. A carpet cleaning service charges $500 plus an additional $15 for every hour.
D. A membership fee for a movie streaming service is free, but each rental costs $15.
Answers
Use the substitution method to solve the following system of equations.
Answers
Answer:
(x,y)=(2,0)
Step-by-step explanation:
Use the first equation to find x. add 1/6 y on both sides, then multiply by 6/5 to get x by itself.
you will get x=2+1/5y
Now you substitute the x value into the second equation
1/2(2+1/5y)+3/4y=1
Distribute the 1/2 to get
1+1/10y+3/4y=1
The only possible value for y is 0.
Now you know y = 0.
Now substitute 0 in for the y in the x value
x = 2+1/5y
x=2+0
x=2
Therefore your answer is (2,0) or x=2 y=0
-10+16 divided by (-2)+7
*Please show work!*
Answers
Answer:
= 1 1/5
Step-by-step explanation:
= -10+16/(-2)+7
= 6/5
= 1 1/5
Solve for c:
5(8 + c) = 55
answer choices
c = 3
c = 11
c = 5
c = 4
Answers
is the relationship between the amount of the orange juice concentrate c and the amount of water w proportional? Explain. Zoe used 3:7 juice concentrate yesterday. and 14 ounces of water in the juice yesterday. Today she wants to make twice as much orange juice.
Answers
Answer:
B.12 ounces
Step-by-step explanation:
step 1
Find out the ounces of orange juice concentrate used yesterday
Let
x ----> ounces of orange juice concentrate used yesterday
y ---> ounces of water used yesterday
we know
that
----> equation A
----> equation B
substitute equation B in equation A
solve for x
step 2
today she wants to make twice as much orange juice.
To find out how much orange juice concentrate she needs, multiply the ounces of orange juice concentrate used yesterday by 2
so
The relationship between c (orange juice concentrate) and w (water) is not proportional. Ratio changed when juice doubled (3/7 ≠ 6/14).
To determine if the relationship between the amount of orange juice concentrate (c) and the amount of water (w) is proportional,
check if the ratio of c to w remains constant for all given situations.
Yesterday, Zoe used a ratio of 3:7 for juice concentrate to water.
This means she used 3 parts of concentrate and 7 parts of water.
express this ratio as c/w = 3/7.
Yesterday's amounts:
Amount of juice concentrate (c) = 3x (where x is a constant multiplier)
Amount of water (w) = 7x
Today, Zoe wants to make twice as much orange juice. Since she wants to double the amount, use a multiplier of 2 for today's situation.
Today's amounts:
Amount of juice concentrate (c) = 3 × 2x = 6x
Amount of water (w) = 7 × 2x = 14x
Now, let's check if the ratio of c to w remains constant for both days:
Yesterday's ratio: c/w = 3x / 7x = 3/7
Today's ratio: c/w = 6x / 14x = 6/14
Since the ratio of c to w is not the same for both days (3/7 ≠ 6/14), the relationship between the amount of orange juice concentrate (c) and the amount of water (w) is not proportional.
Proportional relationships have a constant ratio between the two quantities, but here, the ratio changes when the amount of orange juice is doubled.
learn more about proportional here
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Sixty students from a school attended the winter dance. If 10% of the students attended the dance, what is the total number of students at the school?
Answers
there are 60 students at the dance, and 60 is 10% of 600.
So therefore, 600 students attend that school:)
Answer:
600
Step-by-step explanation:
60x10 because there is 10 10% which means every ten percent is60 people
Which equation has infinitely many solutions?
A. -9x- 9(-x- 10) = 90
B.7(-x + 4) = 90- 7x
C.-7(-x + 4) = 90- 7x
D.-2x- 7(-x + 4) = 90
Answers
216 Divided by 31 (Please include the remainder) :D
Answers
2 divided 31 you can’t do so 0
21 divided 31 you cant do so 0
216 divided 31 is 6
6 times 31 is 186
So 216-186=30
You can’t do 30 times 31 so 0
Then bring down a 0 to 30 so it’s 300
Then 300 divided by 31 is 9
So 31 times 9 is 217
300-217= 83
83 divided by 31 is 2
31 times 2 is 62
83-62=21
21 divided by 31 you can’t do so add a 0
210 divided by is 6
31 times 6 was 189
210-189=21
You don’t have to keep going
Its 6.926 remainder 21
-1/2 divided by ______ = -7/3
Answers
Answer: 7/6
Step-by-step explanation:
1/2:3/7× x = 1/2x= 1/2 ÷ 3/7x= 1/2×7/3x= 7/6
A cylinder has a radius of 14 inches and a height of 10 inches. A rectangular prism has
square bases with side lengths of 8 inches. The two figures have the same surface
area. What is the approximate height of the rectangular prism?
Answers
Answer:
61.973
Step-by-step explanation:
let the unknow side be x
surf of prism = 2*(8*8+8x+8x) = 2*(64+16x) = 128+ 32x
again, surface of cylinder = 2pi*r*(r+h) = 2 * pi * 14 * (14+10) = 672pi
now solve for x, when
128+32x = 672pi
Write an equation of the line in slope-intercept form
The points are (0,3) and (-3,-3)
PLEASE HELP
Answers
Would be the answer with 2 being the slope and 3 being the y-intercept
Question 3 (5 points)
Match the number set or type of number with the correct category.
Column A
1.
Integer:
Integer
2.
{1/2, 1/4, 1/8, 1/16, 1/32}:
{1/2, 1/4, 1/8, 1/16, 1/32}
3.
Repeating decimals (0.454545...):
Repeating decimals (0.454545...)
4.
Non-Repeating decimal (.44454647....):
Non-Repeating decimal (.44454647....)
5.
Whole numbers {0, 1, 2, 3, 4, ....}:
Whole numbers {0, 1, 2, 3, 4, ....}
Column B
a. Rational ratio with a denominator of 1
b. Irrational decimal
c. Rational decimal
d. Rational whole numbers and their opposites
e. Rational (ratios)
Answers
Answer:
Step-by-step explanation:
Question 3 (5 points)
Match the number set or type of number with the correct category.
Column A
1.
Integer:
Integer
2.
{1/2, 1/4, 1/8, 1/16, 1/32}:
{1/2, 1/4, 1/8, 1/16, 1/32}
3.
Repeating decimals (0.454545...):
Repeating decimals (0.454545...)
4.
Non-Repeating decimal (.44454647....):
Non-Repeating decimal (.44454647....)
5.
Whole numbers {0, 1, 2, 3, 4, ....}:
Whole numbers {0, 1, 2, 3, 4, ....}
Column B
a. Rational ratio with a denominator of 1
b. Irrational decimal
c. Rational decimal
d. Rational whole numbers and their opposites
e. Rational (ratios)
Four identical cubes are joined to make a new shape.
What is the new shape’s surface area?
Answers
So 150*4
=600
Image A is transformed to image B. Which of the following sequences of transformations would result in image B? Select all that apply.
Answers
Answer:
Reflection , diltation
Step-by-step explanation:
Michael had $550 in his savings account. He took out $30.75 every month for one year. What is the net change in Michael’s account balance following these withdrawals?
Answers
Answer:
$181
Step-by-step explanation:
Multiply 30.75 by 12 because there are 12 months in one year.
30.75 x 12 = 369
Then subtrcact 369 from 550 to get the net change.
550 - 369 = 181
Michael is left with an account balance of $181.
Answer:
its -369
Step-by-step explanation:
What is the area of a square with a perimeter of 55 cm
Answers
Answer:
Step-by-step explanation:
A= 189.06cm2
Answer:
Step-by-step explanation:
189.06cm2
Please help me again! What is the slope of this line? Answer must be a fraction... Much appreciated, friends!♡♡ ♡＼(´▽ `)ノ♡
Answers
The temperature changed by negative 30° every hour for 2 1/5 hours. By how much did the temperature change?
Answers
Answer:
By -66° because -30°(2 1/5) = -66°
An art teacher is ordering colored pencils for the new school year. The table shows the number of colored pencils per box size. Box Size Number of Colored Pencils Small 12 Medium 64 Large 100 The teacher buys 24 small boxes, 12 medium boxes, and 5 large boxes. She had to return 3 small boxes due to defects. How many colored pencils does the teacher have in all?
Answers
Answer: 1520
Step-by-step explanation:
Multiply 24 times 12
Multiply 12 times 64
Multiply 5 times 100
Add the three sums
Subtract the product of 3 times 12
(288 + 768 + 500 = 1,556. 1,556 - 36 = 1520)
If a widget factory as a fixed operating cost of $2,500 per day plus a cost of $1.50 per widget produced. If a widget sells fro $5.00, what is the least number of widgets that must be sold per day to make a profit?
Answers
Answer:
At least 714 numbers of widgets must be sold per day to make a profit.
Given fixed operating cost = $2,500 per day cost of widget =$ 1.50
widget sells =$ 5.00
Cost function = C(X)=1.50x+2500
Revenue function = R(X)=5 x
At Break Even point R (X) = C (X)5
X= 1.50X+2003.5
X =2500X =714
Hence to reach break even point or make profit 714 no to be sold. R(714)= 3571.
Step-by-step explanation:
A plastic storage bin is shaped like a rectangular prism. The height of the bin is 9 inches. The bottom of the bin has an area of 180 square inches.
What is the volume of the storage bin?
Enter your answer in the box.
__ in³
Answers
Answer: 1620 in.^3
Step-by-step explanation: Basically, you have a prism that has a base of 180, and a height of 9 in. The volume of a rectangular prism is length*width*height, and 180 is the length*width, so to find the answer, you do 180*9, which is equal to 1620.
I neeed help this is due today at 4:30
Instructions
In this experiment, you will be using two different coins as a simulation for a real-world compound event.
Suppose that a family has an equally likely chance of having a cat or a dog. If they have two pets, they could have 1 dog and 1 cat, they could have 2 dogs, or they could have 2 cats.
What is the theoretical probability that the family has two dogs or two cats?
Describe how to use two different coins to simulate which two pets the family has.
Flip both coins 50 times and record your data in a table like the one below.
Result
Frequency
Heads, Heads
Heads, Tails
Tails, Heads
Tails, Tails
Total
50
Based on your data, what is the experimental probability that the family has two dogs or two cats?
If the family has three pets, what is the theoretical probability that they have three dogs or three cats?
How could you change the simulation to generate data for three pets?
Answers
Answer: 1/3
Step-by-step explanation: there you go :)
Please help me put the coordinates on and get the slope!
Answers
Answer:
Step-by-step explanation:
Slope
\(m=\frac{y2-y1}{x2-x1} \\\\m= \frac{3/2-(-3/2)}{3/2-(-3/2)}\\\\m=\frac{3/2+3/2}{3/2+3/2}\\ \\m=\frac{3}{3}\\ \\m=1\)
slope: m=1
y=mx+b
y=1x+0
Are the statements true or false?
Select True or False for each statement.
Statement True False
−6÷3=3÷(−6)
True – −6÷3=3÷ −6
False – −6÷3=3÷ −6
−8⋅9=9⋅(−8)
True – −8·9=9· −8
Answers
Answer:
1. not equal to
2. equal to
Step-by-step explanation:
Recall that rational numbers are numbers that can be represented as the ratio, or fraction, of two integers. When expressed as decimals, rational numbers either terminate or repeat. For the following rational numbers, use long division to rewrite each fraction as a decimal number. Then, classify each decimal equivalent as terminating or repeating.
division to rewrite each fraction as a decimal number. Then, classify each decimal equivalent as terminating or repeating.
5 2/7 repeating or terminating
7/16 repeating or terminating
14 5/9 repeating or terminating
3/22 repeating or terminating
Answers
Answer:
Repeating
Terminating
Repeating
Repeating
Step-by-step explanation:
5 2/7 as improper fraction is 37/7 and it equals 5.28571428571 which makes it repeating because the numbers don't stop.
7/16 is equal to 0.4375 making it terminate because the numbers stop.
14 5/9 as an improper fraction is 131/9 and 131/9 is 14.5555555556 and that is a never ending pattern so it is repeating.
3/22 is equal to 0.13636363636 it is repeating because the numbers never stop.
Factor out the GCF of
4a + 12b - 4
y^2 - 7y
4x^3 + 2x^2 - 8x
Answers
Answer:
Ok wha
Step-by-step explanation: