How can we efficiently multiply by multiples of 10?

Answers

Answer 1

Answer:

just add a zero

Step-by-step explanation:

because if you do all the work it's just a waste of time when you could get the same answer by just adding a zero.


Related Questions

Gus has a lunch food budget of $190 per month. He spends an average of $5 per day on lunch. Which of the following equations represents how much money is left in his lunch budget after x days of buying lunch?
A.
y = 5x - 190
B.
y = 190 - 5x
C.
y = 190x - 5
D.
y = 190 + 5x

Answers

Answer:

The answer is C.

Step-by-step explanation:

Each day (x) he loses 5 dollars from his total of 190. And C shows that because 190 - 5 x. 190 is his total, 5 is dollars lost a day, and x is days

PLEASE HELP
A cleaning spray contains 1/2 cup of vinegar for every 4 teaspoons of lemon oil

how many cups of vinegar are needed for 2 teaspoons of lemon oil?

Answers

Answer:

1/4 cup of vinegar for 2 tsp of lemon oil

Step-by-step explanation:

got it right on I-ready

and the Rate in cups of vinegar per teaspoons of lemon oil is 1/8

please help and answer properly

Answers

Answer:

6. Ethan should shade the region marked B

7. No, point (0, 4) will not be included in the solution set

8. Point (0, -2) will not be included in the solution set

Step-by-step explanation:

Let us explain how to solve the question

The graph represents the equation 2x - 5y = 10

The inequality is 2x - 5y > 10

The sign of inequality is greater than without equal, that means the line represents it must be a dotted line because all the points on the line do not belong to the solution set of the inequality.

To find the area of the solution you must put y on a side and the other term on the other side

∵ 2x - 5y > 10

→ Add 5y to both sides to move y in the other side

∴ 2x - 5y + 5y > 10 + 5y

∴ 2x > 10 + 5y

→ Subtract 10 from both sides to move 10 to the other side

∵ 2x - 10 > 10 - 10 + 5y

∴ 2x - 10 > 5y

→ That means 5y < 2x - 10

5y < 2x - 10

6.

→ y < that means the area of the solutions is under the line

∴ The solutions of the inequality lie in area B

Ethan should shade the region marked B

7.

∵ Point (0, 4) lies above the line in the region marked A

→ That means it does not lie in the area of the solutions

Point (0, 4) will not be included in the solution set

8.

∵ Point (0, -2) lies on the line

∵ All the point on the line did not belong to the solution set as we

  said before

Point (0, -2) will not be included in the solution set

Solve –8y + 3 > –5.

A. {y | y < –1}
A. {y | y < –1}

B. {y | y > 1}
B. {y | y > 1}

C. {y | y > –1}
C. {y | y > –1}

D. {y | y < 1}

Answers

A bc it’s less then

Answer:

.

Step-by-step explanation:

The problem is:Manny drove 45 miles in 0.75 hours.What was the average rate that he drove in miles per hour?

Answers

Answer:

60mph

Step-by-step explanation:

Answer:

Manny drove 45 miles in 0.75 hours.What was the average rate that he drove in miles per hour?

60 mph

Step-by-step explanation:

find each sum.
1)-9+(-2)
2)3.2+1.4
3)5.1+(0.7)
4)2.2+(-3.8)

Answers

Answer:

1. 18

2. 0.36

3. 3. 57

4. -7. 36


Mary drives for Uber. Uber charges a $3 flat rate plus $0.30 per mile driven.
What is the CONSTANT here? *
(1 Point)
$3
Uber
$0.30
$3.30

Answers

Answer:

$3.00 is the constant

Step-by-step explanation:

let x be the mile driven then

total charge=$3.00+[x($0.30)]

Solve using equivalent ratios.
Leila and Joe are two partners in a business. Leila makes $5 in profits for every $9 that
Jo makes. If Jo makes $36 profit on the first item they sell, how much profit does Leila
make?

Answers

Answer:

$20

Step-by-step explanation:

Leila to Jo: $5/$9

Leila to Jo: x/$36

5/9 = x/36

Cross multiply.

9x = 5 * 36

Divide both sides of the equation by 9.

x = 5 * 4

x = 20

Answer: $20

Use slope formula, m= y2, - y1 over X2-X1 to find the slope of a line that passes through the points (-3, 8) and (4.-6).

m=

use the slope-intercept form, y=mx+b to find the y-intercept (b) of the line

b=

what is the new equation written in slope-intercept form y=mx+b​

Answers

Answer:

m= -2

b= 2

y= -2x + 2

Step-by-step explanation:

Just did it

The slope of a line is m = -2 that passes through the points (-3, 8) and (4.-6), the y-intercept (b) of the line is 2, and the equation is y = -2x + 2.

What is the slope of the line?

The slope of a line is defined as the gradient of the line. It is denoted by m

Slope m = (y₂ - y₁)/(x₂ -x₁ )

Given that the line that passes through the points (-3, 8) and (4.-6).

Let

x₁ = -3, y₁ = 8

x₂ = 4, y₂ = -6

∵ Slope m = (y₂ - y₁)/(x₂ -x₁  )

Substitute values in the formula

m = (-6 - 8)/(4 -(-3))

m = (-14)/7

m = -2

y - 8 = m(x - (-3))

y - 8 = -2(x + 3)

y = -2x -6 + 8

y = -2x + 2

Since the slope-intercept form, y = mx+b

So the y-intercept (b) of the line,

b = 2

Thus, the slope of a line is m = -2 that passes through the points (-3, 8) and (4.-6), the y-intercept (b) of the line is 2, and the equation is y = -2x + 2.

Learn more about the Slope of the Line here:

brainly.com/question/14511992

#SPJ2

A1 plumbing service charges $35 per hour plus a $25 travel charge for a service call. Good guys plumbing repair charges $40 per hour for a service call with no travel charge. How long must a service call be for the two companies to charge the same amount?

Answers

Answer: 5 hours

Step-by-step explanation: the equation is

35x + 25 = 40x just solve it to get 5

Martha drove 281.4 miles in 4.2 hours. How fast was she driving?

Answers

Answer:

I think your answer would be 67 mph

Step-by-step explanation:

281.4 / 4.2 = 67

Formula for speed:

d / t = s

Help ASAP, easy 15 points and a brainly for the first one to answer .

Answers

Answer:

It slopes downward from left to right. You can see the downward slope of that gender, which starts at the left and moves to the right.

Step-by-step explanation:

The Gators football team gained 4 yards on its first play, but lost 9 yards on the
second play. Which of the following best represents the result of these two
plays?

Answers

Answer:

-5 yards

Step-by-step explanation:

4 - 9

= -5

in that two plays:

loss 5 yards

Y+5<3 inequality solution

Answers

Answer:

y=2

Step-by-step explanation:

y + 5 < 3

- 5 -5

y = 2

.................................

Write the equation of a line in point slope form that passes through (-1, 4), and is perpendicular to y = -4x +3

Answers

Answer:

y = 1/4x + 17/4

Step-by-step explanation:

Slope-Intercept Form: y = mx + b

Perpendicular lines have the negative reciprocal slope.

m = 1/4

y = 1/4x + b

4 = 1/4(-1) + b

4 = -1/4 + b

17/4 = b

y = 1/4x + 17/4

Gender plays an important role in the six components of health.
Please select the best answer from the choices provided.

The ANSWER IS

T


I know because I just took the test

Answers

Answer:

sorry I didn't understand the answer t what is the answer t can u elaborated

Answer:

false

Step-by-step explanation:

its right

I need help fast
help me please​

Answers

Answer:

f(2) = -5

Step-by-step explanation:

f(2) means that x = 2.

We are trying to find the y-value when x = 2.

When x = 2, we see from the graph that our y-values is equal to -5.

Therefore, f(2) = -5

A school principal plans to form teams from 126 third-graders, 180 fourth-graders, and 198 fifth-graders so that there is the same number of students from each grade level on each team. If all students participate, what is the largest possible number of teams and how many students will there be on each team?

Answers

Answer:

There are 9 teams possible each having 14 third-graders, 20 Fourth-graders, 22 Fifth-graders

Step-by-step explanation:

126 third-graders

180 fourth-graders

198 fifth-graders

Find the highest common factor of 126, 180, 198

Factors of 126: 1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126.

Factors of 180 : 1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180

Factors of 198: 1, 2, 3, 6, 9, 11, 18, 22, 33, 66, 99, 198.

The highest common factor of 126, 180, 198 is 9

The largest possible number of teams that can be formed is 9

Each team has

third-graders = 126 / 9

= 14

Fourth-graders = 180 / 9

= 20

Fifth-graders = 198 divided by 9

= 22

There are 9 teams possible each having 14 third-graders, 20 Fourth-graders, 22 Fifth-graders

which ordered pairs are solutions to the inequality y-3x<-4
(5,1)
(4,-2)
(-3,0)
(1,-1)
(0,-3)

Answers

Answer:

(5,1) (4,2)

Step-by-step explanation:

Tanya has 144 chairs that she needs to
arrange in a square. Which expression would tal
Tanya the number of chairs she needs in each
row?

Answers

Answer:

12 by 12

Step-by-step explanation:

12x12=144 which equals a square

Pls help i dont understand :( will give Brainliest + 25 Points

Answers

Answer:

D

Step-by-step explanation:

Find the slope using the formula [ y2-y1/x2-x1 ]

2-2/-5-3

0/-8

0

Find the y-intercept using slope-intercept form [ y = mx + b ] and (3, 2)

y = 0x + b

2 = 0(3) + b

2 = b

Put everything we know into the final form.

y = 0x + 2

y = 2

Best of Luck!

change in y/change in x

y2-y1/x2-x1

2-2/-5-3

0/-8 = 0

The slope is 0 - the answer is d

because when 0x = 0, then you are left with y and only y

when the equation is x=, then the equation is undefined

but, when an equation is y=, that the slope is 0

what is the value of xy/w if x=-3, y=4 and w= -6. A. 2 B. -2 C. 1/2 D. -1/2

Answers

Answer:

A. 2

Step-by-step explanation:

Put x = -3, y = 4 and w = -6 to the expression xy/w = (xy) : w

(-3 · 4) : (-6) = -12 : (-6) = 2

help plz explain how to use discributive property

Answers

1.Identify the fractions. Using the distributive property, you’ll eventually turn them into integers.

2.For all fractions, find the lowest common multiple (LCM) -- the smallest number that both denominators can fit neatly into. This will allow you to add fractions.

3.Multiply every term in the equation by the LCM.

4.Isolate variables adding or subtracting like terms on both sides of the equals sign.

5.Combine like terms.

6.Solve the equation and simplify, if needed.

you would write two numbers adding or subtracting eachother in parentheses then a number on the outside and you take the number on the outside and multiply it by both the numbers in the parentheses then you’ll have two numbers adding or subtracting eachother for example 2(10+8) then you’d get 20+16 witch is also your problem

Please help solve one of them

Answers

Answer: im not sure

Step-by-step explanation:

Is the function even, odd, or neither?

Answers

Answer:

The function is neither even or odd

Step-by-step explanation:

12(8 – 5) idk to anwsher plz hefp

Answers

Answer:

36

Step-by-step explanation:

12(8-5)

12 * 3

36

Answer:

36

Step-by-step explanation:

(8-5) =3  then u do

12x3=36

A federal government agency that is responsible for setting vehicle fuel economy standards for automobile manufacturers is conducting research in order to update its fuel economy standards for the year 2030. Automobile​ manufacturers, and​ consumers, are highly interested in what the​ agency's findings and determinations will be as this will affect every vehicle in the United States. The federal government agency is very interested in the relationship between the weight of a vehicle and the​ vehicle's fuel economy​(average miles per gallon​ (MPG)). Specifically, the agency is concerned that if the current trend of automobile manufacturers producing heavier new vehicles continues that its fuel economy targets will not be met. The​ agency's research department recently collected data for analysis in order to support the​ agency's upcoming discussion with industry regarding its proposed 2030 fuel economy standards. The average MPG from a random sample of 750 vehicles was recently calculated by the agency. The research division also collected the vehicle weight of these 750 randomly sampled vehicles. The Vehicle​ Number, Type, Vehicle​ Weight, Average​ MPG, Fuel Tank Size​ (Gallons), Engine Size​ (Liters), and Meet or Not Meet Current Standards data were collected for these 750 vehicles.
Which of the following most closely describes the method of data collection​ used?
a. Anecdote
b. Controlled experiment
c. Observational study

Answers

Answer:

Controlled experiment

The method of data collection used by the federal government agency is controlled experiment.

What is Controlled Experiment?

A controlled experiment can be defined as an experiment under which an independent variable is constantly manipulated in order to evaluate its effects on other dependent variables.

The experiment conducted on 750 vehicles by federal government agency to determine the relationship between weight of the vehicle and its fuel economy  is a controlled experiment since the effects of weight of vehicles is observed on their fuel economy, other things remaining constant.

The fuel economy changes with the change in weight of the vehicle. The vehicle weight therefore affects the fuel economy or average MPG of the vehicle.

Therefore the method of data collection used is controlled experiment.

Learn more about controlled experiment here:

https://brainly.com/question/4444046

A person going to a party was asked to bring 4 different bags of chips. Going to the store, she finds 13 varieties.

How many different selections can she make?
(this is a probability question)

Answers

Answer:

Step-by-step explanation:

13!/4(13-4)!

13!/4(9)!

Continue simplifying.

The formula for combinations n!/r!(n-r)! pay attention to class next time

"715" are the different selections she can make.

Given:

Number of different begs,

4

Total number of varieties,

13

So,

Total number of different selection = ¹³C₄

= [tex]\frac{13!}{4!\times (13-4)!}[/tex]

= [tex]\frac{13!}{(4!\times 9!)}[/tex]

= [tex]\frac{13\times 12\times 11\times 10}{4\times 3\times 2}[/tex]

= [tex]\frac{17160}{24}[/tex]

= [tex]715[/tex]

Thus the above answer is correct.

Learn more:

https://brainly.com/question/21125879

التاريخ / /
اليوم
موضوع الدرس
و(
is 82
room )
what is
ده by
و به
the
area
0
the
room?can I translate in English ​

Answers

I cannot read what this is but can you translate

answer this question JUST FOR POINTS this is not a real question (2+2)​

Answers

Answer:

4 I think I could be wrong hahaha

It’s 4
Thanks for the points :)
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