Mathematics College

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

-1/2(-2x+4y) someone expand this pls

Answers

Answer:

-1/2(-2x+4y)=

x-2y

t Park Junior High, 10%, or 160, of the students, play a musical instrument. How many students attend the school?

A tape diagram. StartFraction part Over whole EndFraction = StartFraction 10 Over 100 EndFraction = StartFraction 160 Over question mark EndFraction

Which statements are correct? Check all that apply.
The total number of students is 160.
The percent as a part-to-whole ratio is StartFraction 10 Over 100 EndFraction.
The percent as a part-to-whole ratio is StartFraction 160 Over 100 EndFraction
There are 1,600 students in the school.
There are 250 students in the school.

Answers

Answer:

The total number of students is > 160.

The percent as a part-to-whole ratio is StartFraction 10 Over 100 EndFraction.

There are 1,600 students in the school.

Step-by-step explanation:

got is correct

Answer:

2,3,5 for eg. 2020

Step-by-step explanation:

Last year a sports team made $2,000,000 in profit, and this year it increased its profits
to $2,500,000. How much money was made on food sales in both years based on how
the sports team makes its profits:
• Programs: 15%
• Food: 40%
• Souvenirs: 25%
• Tickets: 20%

Answers

1,000,000

2,500,000x0.4 (40 as a decimal) = 1,000,000

Maggie makes 18 muffins. She is making them for her book group, which has 12 members. If she divides the muffins equally, how many will each person get?

Answers

Answer:

1.5

Step-by-step explanation:

18/12=1.5

What is the quotient of (-55) divide by 5?

Answers

Answer:

Step-by-step explanation:

✨Answer:✨

-11

✨Step-by-step explanation:✨

-55 ÷ 5 = -11

(Just take the negative sign away and divide)

HELP PLEASE Which equation shows a proportional relationship between x and y?

y = 4x
y=−3x−2
y = 3x + 1
y = 9

Answers

Answer:

y = 3x + 1 I think........

Which function defines the sequence 6,8,10,....?
(5 Points)
f(n)=2n+4
f(n)=3n+2
f(n)=6n

Answers

Answer:

f(n)=2n+4

Is the answer

iTunes charges a one time fee of $10 and $ 1 per song . Spotify charges a one time fee of $20 and $0.50 per song. After how many songs will the Spotify membership pay off and in the long run cost you less ?

Answers

Answer:

Step-by-step explanation:

find the value of x in the proportion 4/7 = x 56 pls help!!

Answers

Answer:

Step-by-step explanation:

4=x56×7

4=x392

392/4=X

Which expression has the same sum as the one below?
- 15+6
0.15+6
0-6+(-15)
15+(-6)
6+(-15)

Answers

Answer:

6+(-15)

Step-by-step explanation:

=6+(-15)

=6-15

=-9

6+(-15)

Explanation:
-15+6 = -9

6+(-15)
Remove parentheses
6 - 15

Calculate the difference
6 - 15

Solution
-9
They Both Equal -9

What do the factors in the factored form represent?

Answers

Answer:

The factored form tells you the times at which the object's height is zero (the roots). ... Write the equation for this parabola in vertex form, factored form, and general form. From the graph you can see that the x-intercepts are 3 and 5. So the factored form contains the binomial expressions (x 3) and (x 5).

Step-by-step explanation:

could u answer my newest question? ive been stuck on it for hours

Drag each description to the correct location on the table. Each description can be used more than once.
Classify each polynomial based on its degree and number of terms.
Polynomial
Name Using Degree
Name Using Number of Terms
5x - 8x
-6- X + 34²
-0.7*²
trinomial
binomial
trinomial
linear
monomial
cubic
quartic
quadratic
quartic
quintic

Answers

Answer:

Cubic-binomial

Quintic-trinomial

Quartic-monomial

Linear-binomial

Quadratic-monomial

Step-by-step explanation:they all in order

The answers are follows:

5x²-8x Cubic binomial

-6-x^5 - 3x² Quintic trinomial

1/3 x^4 Quartic monomial

-0.7x² Quadratic monomial

What is Polynomial?

Polynomials are sums of terms of the form k⋅ xⁿ, where k is any number and n is a positive integer.

According to the table:

5x²-8x Cubic binomial

-6-x^5 - 3x² Quintic trinomial

1/3 x^4 Quartic monomial

-0.7x² Quadratic monomial

Learn more about polynomial here:

https://brainly.com/question/11536910

#SPJ2

Robin can clean 727272 rooms in 666 days. how many rooms do she clean in 9 days

Answers

Answer:

Robin can clean 9828 rooms in 9 days

Step-by-step explanation:

Since Robin can clean 727272 rooms in 666 days, we can find how many rooms she can clean in 1 day by dividing 727272 by 666

number of rooms cleaned by Robin in 1 day = 727272 rooms/666 days = 1092 rooms/day

We can then find how many rooms she can clean in 9 days by multiplying 1092 by 9

1092 rooms/day * 9 days = 9829 rooms

You pay $25 each month for satellite TV, plus $1.50 for every movie you purchase. Write and solve an equation to find the number of movies purchased during a month with a total bill of $38.50

Answers

$38.50=1.50x+$25 where x is the number of videos ordered during the month

Answer

9 movies

Step-by-step explanation:

$25 - 38.50 = $13.50

13.50/ $1.50 = 9

Help easy question......Branliest reward

Answers

Answer:

Step-by-step explanation:

Answer:

y=42.91

Step-by-step explanation:

cos 35=y/53

0.81=y/53

y=0.81*53

y=42.91

Which inequality is graphed below?

Answers

X is less than or equal to -4

Answer:

the first one

x is greater than or equal to - 4

Step-by-step explanation:

Please help i will give brainliest

Answers

I hope this helps I tried my best

Express missing divisor using power of 10.

6.3 / ____= 0.0063

Answers

you first have to see how many times places the tenths are from the ten thousandths which is 3
so your going to have 3 zeros
so your answer would be 1000
hope that helps

Evaluate using the order of operations. Enter the answer in simplest form.
3/5+1/7÷3

Answers

Answer:

0.64761904761

Step-by-step explanation:

3/5+1/7 x 1/3 = 3/5+1/21
Your answer is 68/105

A couple realizes a real estate financing of R $ 180,000.00, to be paid in 360 monthly installments, with an effective interest rate of 1% per month. The first installment is paid one month after the funds are released and the monthly installment is R $ 500.00 plus 1% interest on the outstanding balance (amount due before payment). Note that, with each payment, the outstanding balance is reduced by R $ 500.00 and consider that there is no arrears. By making the payment in this way, the amount, in reais, to be paid to the bank in the tenth installment is

a) 2,075.00.
b) 2,093.00.
c) 2,138.00.
d) 2 255.00.
e) 2 300.00.

Answers

Answer:

ANSWER: letter D

Step-by-step explanation:

In the tenth installment, the debit balance is, in reais, of

180000 - 9. 500 = 175500

The 1% interest on this amount results in:

1% . 175 500 = 1755

Thus, the tenth installment is, in reais, 500 + 1755 = 2255

Find the slope in fraction form

Answers

Answer:

-1/3

Step-by-step explanation:

Taking two points on the graph (I took (0,9) and (6,7)

Slope=(y2-y1)/(x2-x1)

(7-9)/(6-0)=-2/6

=-1/3

Answer: 1/3 is right.

Find the GCF of 28p4 and 44p2q.

Answers

4p2

Factors:

28p4 = 1 2 4 7 14 28 p p p p

44p2q = 1 2 4 11 22 44 p p q

How to round 86.415 to the nearest whole number end point

Answers

You would round this number by rounding each number (until the whole number) from right to left. So it would change from 86.415>86.42>86.4>87.

Hope this helps, if not, comment below please!!!

Answer:

Step-by-step explanation:

I'm not completely sure what this question is asking for. But if you want to round 86.415 to the nearest whole number, it would be 86, since any number less than 5 you would round down, and the 4 in the tenths place is less than 5.

which of the following functions has a range of all real numbers?

Answers

Answer:

Step-by-step explanation:

The dots cannot intersect

Logic puzzle,Riddles

You enter a bedroom there are 34 people. You kill 30. How many are in the bedroom?

Answers

Answer:

Step-by-step explanation:

yes

35 including the body.

Triangle ABC is an obtuse triangle with the obtuse angle at vertex B. Angle A must be

less than 90°.
greater than 90°.
congruent to angle B.
congruent to angle C.

Answers

The correct answer is less than 90°

-9x + 1 = - 80 Find the value of x

Answers

Answer:

Step-by-step explanation:

80+1=9x

81=9x

x=9

Step by step explanation:

Step 1:

→[tex]-9x + 1 = - 80[/tex]

Step 2:

→[tex] - 9x = - 80 - 1[/tex]

Step 3:

→[tex] - 9x = - 81[/tex]

Step 4:

→[tex]x = \dfrac{ - 81}{ - 9} [/tex]

Step 5:

→[tex]x = 9✓[/tex]

2. measure of an angle that is supplementary to

Answers

answer: 99°

explanation: first, we need to find angle T. we know that angle T and angle R are vertical angles, which means they’re the same. therefore, we solve the equation for x by doing angle T = angle R:
3x + 36 = 6x - 9
subtract 36 on both sides
3x = 6x - 45
subtract 6 on both sides
-3x = -45
divide both sides by -3
x= 15
then, plug in the value of x in 3x+36 to get angle T:
3(15) + 36= 81°
we found that angle T is 81°.
now, we need to find the supplementary angle of angle T. supplementary angles add up together to have a sum of 180°. to find the supplementary angle, subtract angle T from 180°:
180 - 81 = 99°
there we have the answer!

The mean (average) of 4 numbers is 88.
What is the fourth number if three of the numbers are 80, 95, and 85
A 32
B. 54
с. 75
D. 99
E none of these

Answers

Answer:

E non of the above

Step-by-step explanation:

To get the original number you multiply 88 by 4

Then you add 80, 85 and 95 and then minus it from the original number

You should end up with 352 minus 260

Therefore the answer would be 92 and not a given answer so your answer is e: none of the above

Write 3.6 x 10^-3 in standard form.

Answers

Answer: 33

Step-by-step explanation: hope this helps

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