Mathematics Middle School

A string of holiday lights at a store have three colors that flash at different times. Red lights flash every six second. Blue lights flash every four seconds. Green light flashes every two seconds. The store owner turns on the lights. After how many seconds will all three lights flash at the same time for the first time?

A- 10 sec

B- 8 sec

C-12 sec

D-2 sec

Answers

Answer 1

Answer:

I can't think straight right now but I think its C

Step-by-step explanation:

Related Questions

Find the equation that represents the proportional relationship in this graph, for y in terms of x.

Answers

The equation of the line is required.

The proportional relation of the graph is [tex]y=\dfrac{1}{7}x[/tex]

Equation of line

Two points of the line are

[tex](0,0)[/tex] and [tex](21,3)[/tex]

[tex]x_1=0[/tex]

[tex]y_1=0[/tex]

[tex]x_2=21[/tex]

[tex]y_2=3[/tex]

The equation of the line is

[tex]y-y_1=\dfrac{y_2-y_1}{x_2-x_1}(x-x_1)[/tex]

[tex]\Rightarrow y-0=\dfrac{3-0}{21-0}(x-0)[/tex]

[tex]\Rightarrow y=\dfrac{1}{7}x[/tex]

Learn more about equation of line:

https://brainly.com/question/13763238

HELPPP! ALMOST DUE! Clara estimated that her brother is 4 feet tall. When they get measured at the doctor’s office, her brother’s actual height is 4 feet, 2 inches. What was the percent error for Clare’s estiamate? PLZ HELP!!!

Answers

Answer:

Her error in terms of inches was 2 inches while her percent error was 4.166%

Step-by-step explanation:

From the given data Claire estimated her brother to be shorter than he actually was. She estimated his height to be 4 feet while it was actually 4 feet 2 inches.

We convert the feet into inches because 12 inches are equal to a feet.

4 feet = 4 × 12 inches = 48 inches

4 feet 2 inches = (4 × 12 inches) + 2 inches = 48 + 2 = 50 inches

Error in terms of inches = 50 inches - 48 inches = 2 inches.

Step 2 ; Her percent error is given by dividing the difference in values by the actual value multiplied by 100.

% error = (difference in values / actual value) × 100

Claire's % error = (50 - 48)/ 48 × 100 = 2/48 × 100 = 0.04166 × 100 = 4.166%

Answer:

A 4% difference

Step-by-step explanation:

Convert 4 feet 2 into 4.16666666

4/4.16666666= 0.96 or 96%

4 feet was 96% of 4 feet 2 in

100 - 96= 4%

And this shows that there was a 4% error.

Hope it helped!

Find the slop of the line that passes through (8,4) and (5,2).
(Type your answer in like this; 1/4, for example.)

Answers

Answer:

1/4

Step-by-step explanation:

2/3 because of rise/run

brainliest for brainliest??

Answers

Answer:

sure

Step-by-step explanation:

Answer:

yassssssssssssuwujejfjktjkri

attachment attached brainliest included

Answers

Answer:

(2.5, 0)

(0, 5)

Hope that helps

Answer:

graphing right?

Step-by-step explanation:

I used this website called desmos I really recommend it. hopefully, this was the correct answer and if so use the calculator for the rest to finish quick. good luck and have a great day!

The valley High Marching Band is selling candy bars for a fundraiser
~ Sierra sold some candy bars .
~ Breanna sold twice as many candy bars as Sierra
~ Together Sierra and Breanna sold no less than 45 candy bars
Choose an inequality to represents this situation .
A. x + 2x 45
D . X + 2x ≥ 45

Answers

Answer:

D

Step-by-step explanation:

The inequality to represents this situation is x + 2x ≥ 45.

What is inequality?

A relationship between two expressions or values that are not equal to each other is called 'inequality'.

Given that, a band is selling candy bars for a fundraiser, Sierra sold some candy bars, Breanna sold twice as many candy bars as Sierra and together Sierra and Breanna sold no less than 45 candy bars

Let Sierra sold x bars, then, according to question,

x + 2x ≥ 45

Hence, the inequality to represents this situation is x + 2x ≥ 45.

For more references on inequality, click;

https://brainly.com/question/28823603

#SPJ3

Blossom typed 1/8 of her report on Monday. She typed 1/4 of the report of Tuesday. How much of the report does she need to type to finish it on Wednesday?

Answers

Answer:4

Step-by-step explanation:

Answer: 5/8

That's it

Jose has scored 206 points on his math tests so far this semester. To get an A for the semester, he must score at least 279 points.

Answers

Answer:

206 + n = 279

Step-by-step explanation:

please help me- I understand this but not fully

Answers

Answer:

Im am not exatly sure what you are confused on but Point a is on -1, -3.5 and point b is on 1,-3.5

Step-by-step explanation:

The ratio of mice to snakes in the pet shop is 6:2. There are 42 mice at the pet shop. What is the total number of mice and snakes at the pet shop?
a.7
b.14
c.42
d.56

Answers

The answer is B I believe

Answer:

b 14 its 42 divided by 3 becouse 6 divided by 3 is 2

Step-by-step explanation:

please help me im not smart

Answers

Answer:

i believe the answer will be 23

Hello,

Let’s start solving!

Equation: 5 + 4(3+6) / 2

Step-by-step:

Add the numbers

5 + 4 * 9 / 2

Calculate the expression

5 + 18

Add the numbers

= 23

Explain: Add in parentheses, calculate the expression, add result.

ANSWER: 23

Hope this helps! You are smart!

The distance on a map between a student’s house and her job is 6 cm. On the same map, the distance between her house and her school 8 cm. The actual distance from her house to school is 12 km. If d represents the approximate distance in km between her house and her job, what is d?

A.4
B.9
C.48
D.16

Answers

Answer:it B I think

Step-by-step explanation:

I’m not sure though.

The answer is a)4
You get this answer because you need to find out how many km per cm, so you divide 12 by 8. This will get u the answer of how many km per cm. Then you multiply by six cm because this is the length on the map between home and her job. This will get you the answer 4.

help me with this and get 10 point and bright if right.

Answers

Answer:

A

Step-by-step explanation:

As on X axis line touches the positive number so x will be a real number..after that on y axis the lines touching approximately to 1 or 2 so it mean y is less than or equal to 4

The answer is A...
I hope this helps!

How do you solve this;

The price of a theater ticket increased from $7.50 to $7.75. The theater sold 315 tickets at the higher price. With the price increase, how much more did the theater earn on the tickets?

Answers

Answer: 78.75

its just multiplying the extra 25 cents they added by the number of tickets they sold(315) and that equals 78.75$

Rectangle A′B′C′D′ is the image of rectangle ABCD after a dilation.



What is the scale factor of the dilation?



Enter your answer in the box.

Answers

1/2 because all points are half of the original

Answer:

The dilation's scale factor is 1/2.

Step-by-step explanation:

What we know:

Square ABCD's side lengths are all 3.

-2 - (-5)

-2 + 5 = 3

-5 - (-8)

-5 + 8 = 3

Square A'B'C'D''s side lengths are all 1.5.

-2.5 - (-4)

-2.5 + 4 = 1.5

-1 - (-2.5)

-1 + 2.5 = 1.5

Divide the scale (A'B'C'D') by the original (ABCD) to get the scale factor

1.5/3 = 1/2 as the scale factor of the dilation

This graph shows a proportional relationship between the amount of money in Jack’s savings account and the number of weeks Jack has been saving money.

Which statement identifies the correct slope, and the correct interpretation of the slope for this situation?

A
The slope of the line is 61 , so Jack is saving $6 per week.

B
The slope of the line is 61 , so Jack' is saving $1 for every 6 weeks.

C
The slope of the line is 16 , so Jack is saving $6 for every 1 week that passes.

D
The slope of the line is 16 , so Jack is savings $1 for every 6 weeks that passes.

Answers

I believe it is A. But I’m not exactly sure bc your answer choices don’t seem right. But if it says 6/1 then it should be correct.

The slope of the line is 6, which can be interpreted as Jack saving $6 per week. (Option A).

Recall:

Proportional relationship between two quantities can be given as: y = mx, where m = slope.

Slope (m) = y/x (of a graph that is proportional)

Given the proportional graph, using a point on the line, (5, 30):

Slope (m) = [tex]\frac{30}{5} = 6[/tex]

Therefore, the slope of the line is 6, which can be interpreted as Jack saving $6 per week. (Option A).

Learn more here:

https://brainly.com/question/6869319

Spencer shot 24 basketball shots and made 16 shots. What percent of the shots did Spencer miss?

Answers

Answer:

I think it’s 7%

Step-by-step explanation:

he missed 33% of the shots

Select the graph that matches the equation. y= -x

Answers

the second graph matches the equation y=-x. hope this helped! :)
the second graph matches

UMM IAM I RIGHT IF NOT WHATS THE ANSWER GIVING BRAINLIESTT!!!

Answers

Your right because 110 divided by 11 is 10 no 67 can not be divided by 11 so you are right

Which equation can be used to find 60 percent of 50? StartFraction 60 times 2 Over 50 times 2 EndFraction = StartFraction 120 Over 100 EndFraction StartFraction 50 divided by 1 Over 60 divided by 1 EndFraction = StartFraction 50 Over 60 EndFraction StartFraction 60 divided by 2 Over 100 divided by 2 EndFraction = StartFraction 30 Over 50 EndFraction StartFraction 100 times 2 Over 50 times 2 EndFraction = StartFraction 200 Over 100 EndFraction

Answers

Answer:

50/100=.5, .5x60= 30

30

30 is thah answer nshshshs

210=157-w

solve for w

Answers

W=367 because 210+157 is 367 so 367 minus 157 would be 210 so I think w=367. The equation is just written backwards

Answer:

-53=w

Step-by-step explanation:

210=157-w

Subtract 157 from both sides

53=-w

-53=w

I really need help with this...

Answers

b would be the answer i’m pretty sure , it said TWICE as many push ups so it would be 2x
b is the answer because twice as many push ups

Can yall give me some multip step problems that equal to 1-12?!

i will mark brainliest

Answers

Answer:

1-24/(1+1)

Step-by-step explanation:

Please help!!

fhasidhasiuhdhdas (this was so i could post the question)

Answers

It goes up by 9$ and hour

Find the quotient.

−2 1/2 ÷ 3/4

Answers

There isn’t one..........

Anwser ???

Step-by-step explanation:

17+50+13+4x
x=
Missing Angle=

Answers

Answer:

4(x+20)

Step-by-step explanation:

hope i helped

Answer:

x=25

Step-by-step explanation:

17+50=67

67+13=80

180-80=100

100/4=25

(Hope this is helpful and correct.)

Evaluate 8.3v + 7.5w when v = 3 and w = 4

Answers

Answer:

54.9

Step-by-step explanation:

8.3 * 3 = 24.9

7.5 * 4 = 30

24.9 + 30 = 54.9

the answer would be 54.9

8.3(3) + 7.5(4)

24.9 + 30 = 54.9

On planet Rew, there are 9 gespils to every 10 lirns. If famer Coraz has 40 spills on her annaxvip farm, how many lirns are on the farm?

Answers

Answer:

A.

Step-by-step explanation:

Rewrite the sum of 60+105 as a product of a number and another sum.
Can you also tell me the name of this lesson I need to study it for midterms.

Answers

165 a think it like using addition to simplify

1. At Parker's Pizza Parlor, the total cost of an order of 5 slices of pizza is $12.37. This price includes $1. 12 in
sales tax Let p represent the cost of 1 slice of pizza.
(a) Write an equation to represent this scenario.
(b) Solve the equation for p to determine the cost of 1 slice of pizza. Show your work.
Answer:

Answers

to find the cost of one slice 12.37/5= 2.47 per slice.

so y= 2.47p+1.12

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