What strategies do you use when multiplying decimals? Share your thinking using 2-3 sentences. This is an open-ended question so you can put anything you want but make sure it is correct.

Answers

Answer 1
I’m not sure if this is actually a strategy but can I get brainliest please. If I’m not allowed to use a calculator then I would covert the decimals to fractions. I would covert them to the simplest fractions before multiplying so that the answer is as closest to its simplest form as possible.

Related Questions

What are the vertex and x-intercepts of the graph of the function given below?
y=x²-2x-48
O A. Vertex: (-1, -21); intercepts: x = 6,4
B. Vertex: (1, -40); intercepts: x = 6,7
C. Vertex: (1,-49); intercepts: x = 8,-6
D. Vertex: (0, 0); intercepts: x= -4, 6
SUBMIT

Answers

Answer:

C. Vertex: (1,-49); intercepts: x = 8,-6

Step-by-step explanation:

x²-2x-48 = (x²-2x +1) - 1 - 48

              = (x - 1)² - 49

Then

The vertex is (1 , - 49)

==================

x²-2x-48 = 0

⇔ (x - 1)² - 49 = 0

⇔ (x - 1)² = 49

⇔ x - 1 = 7 or x - 1 = -7

⇔ x = 8 or x = -6

Then

intercepts: x = 8,-6

Calla bought 8 writing utensils for a total of $30. Pens cost $4 each and pencils cost $3 each. How many pens did she buy?

Answers

Answer: 3

Explanation:

158962.5 rounded to nearest tenth

Answers

Answer:

158962.5

Step-by-step explanation:

it is already round to the tenth ,but if you are talking about rounding to the neartest whole number is it 158963

sorry if i am wrong :) have a nice day

need help with this question 11

Answers

Answer:
me podrias dar unos puntos ´porfa


Is a triangle with the side lengths 4 feet, 7. 5 feet, and 8. 5 feet a right triangle? Why or why not? ​

Answers

Answer:

Yes

Step-by-step explanation:

You can test if a triangle is right-angled by using Pythagoras' Theorem.

So:

[tex]4^2 + 7.5^2 = 8.5^2[/tex]

16 + 56.25 = 72.25

They do in fact add up so this triangle is right angled.

Suppose a town has a population of 5,000 residents but that the population is decreasing by 200 people each year. Write a linear function to represent the population of the town in terms of the numbers of years. After how many years will the town have a population of 1,800? When will the town have only 400 residents?

Answers

Answer:

it will take 16 years to reach a population of 1800 and in 23 years the population will be 400.

Step-by-step explanation:

population: 5000

population decreasing: 200x

y=5000-200x

(1800-5000)/-200

(400-5000)/-200

The value of 4,576 x (2,480 + 3) is 3 more than the value of 4,576 x 2,480

Answers

This is false

It would be true if it said (4576 * 2480) + 3 is 3 more

But this is actually ~13728 more

This due to the fact that the 3 is also being multiplied by 4576

what is the area of 10in circle

Answers

Answer:

Step-by-step explanation:

going by the assumption tha the radius is 10inches.

area would be pi r^2

which would be pi(10)^2 = 100pi =314.16 (rounded)

3 1/8 x 90 please help me thank you everyone ! :)

Answers

Answer:

[tex]2248\frac{1}{4}[/tex]

Step-by-step explanation:

given: [tex]3\frac{1}{8} * 90[/tex]

now, we turn both into improper fractions:

25/8 * 90/1 :: [tex]\frac{25}{8} * \frac{90}{1}[/tex]

now we multiply across

[tex]\frac{25}{8} * \frac{90}{1} = \frac{2250}{8}[/tex]

now turn into a mixed number:

[tex]\frac{2250}{8} = 2248\frac{2}{8}[/tex]

simplify! :

[tex]2248\frac{1}{4}[/tex]

A 1,500-gallon tank contains 200 gallons of water. Water begins to run into the tank at the rate of 75 gallons
per hour. When will the tank be full but not overflowing?

Answers

Answer:

17hrs (a little more)

Step-by-step explanation:

The tank is 1500 gallon capacity, it already contains 200 gallons.

1500-200=1300

Now, you have to figure how many hrs it will take at 75 gallons / hr to reach the additional 1300 gallons.

1300÷75= 17.33

It says full, but not overflowing. So I would say around 17hrs

PLEASE HELP ME 60 QUESTIONS ARE DUE TODAY!!!!!!!!!!!!!!!!!!!! PLS HELP WILL GIVE BRAINlIEST!!!!!

Answers

Answer:

x=3/2

Decimal Form:

x=1.5

Mixed Number Form:

x=1-1/2

Step-by-step explanation:

solve the equation :
[tex] |6x^{2} + x - 2| + |2 + 3x - 9x^{2} | = |4x - 3x ^{2} | [/tex]

Answers

Answer:

x = ∞

Step-by-step explanation:

Solving

| 6x² + x - 2 | + | 2 + 3x - 9x² | = | 4x - 3x² |6x² + x - 2 + 2 + 3x - 9x² = 4x - 3x²-3x² + 4x = 4x - 3x²x = ∞Any value is possible as long as it is positive and a real number

3 cm
Find the surface area of the above solid.
O A. 56 cm2
• B. 40 cm2
• C. 48 cm2
D. 36 cm2
Help quickly please

Answers

area is 36...............

A bag contains 3 red marbles, 8 blue marbles and 2 green marbles. If two marbles are drawn out of the bag, what is the exact probability that both marbles drawn will be red?

Answers

Answer:

[tex]\frac{3}{13}[/tex]

Step-by-step explanation:

First you need to find how many marbles there are in total, so 3+8+2= 13

The probability of the marble being red is [tex]\frac{3}{13}[/tex] then

Hope this helps! :)

No it’s 2/13 because it asked for the probability of 2 marbles not 3

what is the outcome when you choose 8 pairs of summer shorts

Answers

Technically the answer would be a

11 What is the value of k if the mid-point of the line joining (1 – k, 4) and (2, k + 1) is (-k, k)? ​

Answers

Answer:

k = -3

Step-by-step explanation:

Given

(-k, k) is the midpoint of the line joining (2, k + 1) and (1 - k, 4)

Solving

Equate the midpoint and endpoints using the Midpoint FormulaLet's equate the x parts-k = 2 + 1 - k / 2-2k = 3 - k-k = 3k = -3

A teacher has been given £35 to spend on pencils and rulers.
A packet of 12 pencils costs £2.15.
A pack of 30 rulers costs £6.00.
She buys 4 packs of rulers and spends the rest on packets of pencils.
How many packets of pencils can she buy?

Answers

Packet of 12 pencils = p
Packet of 30 rulers = r

p = £2.15
r = £6.00

£35 = 4r + xp
£35 = 4(£6.00) + x(£2.15)
£35 = £24 + £2.15x
£11 = £2.15x
x = 5.12

Since she can buy 5.12 packets of pencils, it is equal to 5 packets of pencils.

find the sum or difference [-3 0 5 -7 + -4 2 -1 8] 30 points please help me.

Answers

Answer:

-372

Step-by-step explanation:

-305 -7 + (-42) -18

-312 + (-42) -18

-312 - 42 - 18

-354 - 18

-372


please help!! it’s select all that apply :)

Answers

Answer:

1. [tex]y = 4 * 2^x^+^1[/tex]

4. [tex]y = 2^x^+^3[/tex]

Step-by-step explanation:

First one:

[tex]y = 4 * 2^x^+^1\\y = 4 * 2^x * 2^1\\y = 8 * 2^x[/tex]

Fourth one:

[tex]y = 2^x^+^3\\y = 2^x + 2^3\\y = 8 * 2^x[/tex]

Five gallons of gasoline cost \$ 22. 80$22. 80. ​
​What is the price per gallon?

Answers

Answer:

$4.56

Step-by-step explanation:

22.80/5 = 4.56

The area of a rectangle is (x4 4x3 3x2 – 4x – 4), and the length of the rectangle is (x3 5x2 8x 4). if area = length × width, what is the width of the rectangle? x 1 x – 9 x 4 x – 1

Answers

Answer:

Area = x4 + 4x3 + 3x2 - 4x - 4

Length = x3 +5x2 + 8x + 4

Width = Area / Length.

Performing long division with polynomial.

x4 + 4x3 + 3x2 - 4x - 4 / x3 + 5x2 + 8x + 4 = x-1

Width = x-1

Step-by-step explanation:

The value of the width of the rectangle is,

⇒ (x - 1)

We have to given that;

In a rectangle;

Area = x⁴ + 4x³ + 3x² - 4x - 4

Length = x³ +5x² + 8x + 4

We know that;

Width = Area / Length.

Hence, Performing long division with polynomial.

Width = x⁴ + 4x³ + 3x² - 4x - 4 / x³ +5x² + 8x + 4

         = x - 1

Thus, The value of the width of the rectangle is,

⇒ (x - 1)

Learn more about the rectangle visit:

https://brainly.com/question/2607596

#SPJ7

As with simple linear regression, we desire the residuals to (select all that apply) have large variance. have constant variance. have a mean close to 1. have a mean close to 0. have in increasing mean.

Answers

As with simple linear regression, we desire the residuals to:

Have constant variance.Have a mean close to 0.

What is a simple linear regression?

It should be noted that a simple linear regression simply means a model that describes the relationship between a dependent variable and an independent variable.

In this case, as with simple linear regression, we desire the residuals to have constant variance and have a mean close to 0.

Learn more about regression on:

https://brainly.com/question/25987747

last one i swear please help

Answers

Answer:

Step-by-step explanation:

The garden club earned $15dollar sign, 15 per hour by weeding neighborhood gardens for t hours. A generous donor has agreed to double their earnings.
How much did the garden club earn in all?

Answers

Answer:

Step-by-step explanation:

the answer should be 15t times 2.

Answer:

anser is 60$

Step-by-step explanation:

15*2 = 30 (total without donor)

donor is multiplying what the earned my 2 so 30*2+60

Can someone help me with this? I need it before Monday. I will give brainlist!! If the picture is too blurry here is the problem:
Michelle makes jewelry boxes containing drawers of equal size. The numbers of drawers in three ditterent ewelry boxes and the corresponding total volumes of the drawers are shown in the table below. JEWELRY BOXES Number of Drawers Total Volume (cubic inches) 2 5 3 7.5 4 +6 10 Write an equation for the relationship between the number of drawers in the jewelry box, d, and the total volume of the drawers in the jewelry box, V. Use your equation to determine the number of drawers in a jewelry box with a total volume of 17.5 cubic inches Show your work.​

Answers

Answer:

1.  total volume of box=2.5(V)D

2. 7 Drawers

Step-by-step explanation:

2.5 = V

so 1 draw = 2.5 cubic inches of volume

so V(2.5) × D(number of drawers) = total volume of drawers in the box

find the Perimeter and area

Answers

Answer:

perimeter = 22 + 3π

area = 48 + (9/2)π

Step-by-step explanation:

perimeter = 8 + 6 + 8 + (1/2)(6π) = 22 + 3π

area = 8(6) + (1/2)(3^2)π = 48 + (9/2)π

How to multiply a ratio then divided by 3.

Answers

Answer:

Heres the answer

Step-by-step explanation:

To calculate the ratio of an amount we divide the amount by total number of parts in the ratio then multiply the answer by original ratio.

Clover O Donnell
Problem iu: PRAEUS
A rectangular prism with dimensions 5 inches by 13 inches by 10 inches was cut to leave a piece as shown in the image.
13 in
10 in
1 in
5 in
What is the volume of this piece?
Do not include units (in?) in your answer.
copied for free from openupresources.org
below as a number example: 5.3.1.4 1/2, or 3/2)

Answers

the answer is i believe , 350 cubed inches

An old car has to travel a 2-mile route, uphill and down. Because it is so old, the car can climb the first mile, the ascent, no faster than an average speed of 15 mi/h. How fast does the car have to travel the second mile, on the descent, to achieve an average speed of 30 mi/h for the trip

Answers

Answer:

2s + 30 = 2s

Step-by-step explanation:

Time up hill + time down hill = total time

:

Multiply equation by 30s; results

2s + 30 = 2s

:

A computer monitor is 20 inches wide. The aspect ratio, which is the ratio of the width of the screen to the height of the screen, is
16:9
What is the length of the diagonal of the screen, to the nearest whole inch?
Enter your answer in the box.

Answers

Answer:

22.95 in  =   ~~ 23 inches

Step-by-step explanation:

16 + 9 = 25

9/16 =  x/20      shows x = 11.25   in      is height

diagonal  ( via pyhtag theorem)

=   sqrt ( 20^2 + 11.25^2 ) = 22.95 inches  

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