estimate 42.8 + 31.2

Answers

Answer 1
You can round 42.8 to 43 and 31 to 31 so 43+31 is 74 as a estimated answer
Answer 2
74 you can round the last numbers or just add it all together:)

Related Questions

SOLVE CORRECTLY AND SHOW WORKKKK!

Answers

Answer:

50=(3x)x

Step-by-step explanation:

50=(3x)x. The question is only asking for the inequality of the problem. Since the area of a rectangle is L x W, you would write L as 3x and W as x, and since the area of the rectangle is given, you can set the area as 50.

Look on photo please!!!

Answers

Answer:

b

Step-by-step explanation:

i am really sure just count all zeros and 5

mark me on brainliest please follow me to

Answer:

b

Step-by-step explanation:

just b

The locations of student desks are mapped using a coordinate plane where the origin represents the center of the classroom. Maria's desk is located at (3, −1), and Monique's desk is located at (−3, 2). If each unit represents 1 foot, what is the distance from Maria's desk to Monique's desk?

Answers

Answer:

the distance is 6 feet horizontally and 3 feet vertically

Step-by-step explanation:

mark me as brainliest please

Answer/Step-by-step explanation:


If your question has different numbers and options but its the same pretty much the answer is square root of 85

If your question is this the answer is square root of 45

Explained below;


For the one with different option choices but the answer square root of 85 is visible the answer is square root of 85, for people with these option choices the answer 3√5 or 6.7082039324994, rounded that would be 7. Square root of 49 = 7. So the possible answer choice for this is square root of 49 if thats an option choice. If 49 is not an option choice then the answer could be square root of 45. Because square root of 45 = 6.7082039324994 which is what we had before we rounded. The question doesn't say to round so its most likely square root of 45.







~ LadyBrainiac

HELP PLEASE!!!! Question on photo

Answers

Answer: D

Step-by-step explanation:

Find the scale by dividing the lengths of figure 1 and figure 2. Such as 4/2.4 is 1.66666 etc. Same with 2/1.2 and 5/3. Meaning, if you divide x and y, they should also equal what 4/2.4, 2/1.2, and 5/3 are. Which is D, 5/3.

figure one (with x on) has a side of 5 and figure two (with y on) the same side is there
so x/y is equivalent to 3/5

A farmer owns a total of 10 5/6 acres of land. The land is separated into 5 equally sized sections. How many acres are in each section? Write your answer as a mixed number in simplest form.

Answers

Answer: 2 1/6

Step-by-step explanation: First, convert 10 5/6 into a mixed number: 65/6, then divide by 5/1.

65/5=13

6/1=6

You then have 13/6.

Convert it to a mixed number: 2 1/6

Answer:

Step-by-step explanation:

1=2 so 12

HELP MEEE
Question
Evaluate:

3(d+e) when d =2 and e =3

Enter answer in the box.

Answers

Answer:

positive 15

Step-by-step explanation:

3(2+3)

3(5)

15

3(2)=6
3(3)=9
6+9=15

the answer is 15

Answer fast, will get brainliest!!
Convert 47 grams to ounces. (1 gram = 0.0352 ounce)

0.0007 ounce
1.6544 ounces
16.544 ounces
1,335.23 ounces

Answers

It is the first one 1.6544

Answer:

1.6544

Step-by-step explanation:

47 x 0.0352 = 1.6544

Jenny has pennies, nickels, dimes, quarters, half-dollars, and/or dollar coins in her purse. Still, she's unable to make change for an old $2 bill. What is the greatest amount of money that she could possibly have? (She may have none of the same coins.)

Answers

Answer:

The Only Possible Max amount is $1.99

Step-by-step explanation:

If she has change and doesnt have enough for a two dollar bill then we use common sense,

$1 = 100 cents

$2 = 200 cents but she cant get 2 dollars so we subtract 1 cent from 200 cents and end up with 199 cents which is 1 dollar 99 cents

Hey! I have a assignment due soon about transversals of parallel line: solve for x. If someone can help it would be great. Thank you!

Answers

Here the answer I think I hope it helps you a little bit

Answer:

x = 20

Step-by-step explanation:

Angle B and angle C are supplementary. If the measure of angle B is 14 times the measure of angle C, what is the difference between the angles' measures?
Enter your answer as the correct number of degrees, like this: 42
explain why

Answers

Answer:

156

Step-by-step explanation:

Let measure of angle C = x.

Then, the measure of angle B is 14x.

14x + x = 180

15x = 180

x = 12

14x = 14(12) = 168

168 - 12 = 156

So b= 14 there isn’t any difference because B and C are the same that’s what I think so B and C are probably equal 14 and 14 or the difference that b is 14 we need to now C let’s say C is X let’s times 14time

The formula for any geometric sequence is an = a1 · rn - 1, where an represents the value of the nth term, a1 represents the value of the first term, r represents the common ratio, and n represents the term number. What is the formula for the sequence -3, -6, -12, -24, ...?

A an = -3 · 2 n - 1
B an = -3 · (-2) n - 1
C an = 2 · (-3) n - 1
D an = -2 · (-3) n - 1

Answers

Answer:

an=-3.2n-1

Step-by-step explanation:

a1=-3

r=T2/T1

-6/-3

r=2

an=-3.2n-1

An equation that shows that two ratios are equal is a(n) _________.


rate
ratio
unit rate
proportion

Answers

Answer: proportion

Step-by-step explanation: a proportion shows that two or more fractions or ratios are equivalent

It would be a Proportion

A fly can walk around a cubical block in two minutes. How long will it take the fly to walk along the edges of the cube from one corner to the opposite corner if it walks at the same rate?

Answers

Answer: 90 seconds or 1.5 minutes

Step-by-step explanation: 2 minutes(120 seconds) divided by 4 edges equals 30 seconds per edge. To get from 1 corner to the diagonally opposed opposite corner the fly would walk on 3 edges, so it would take 90 seconds

The time taken to cross from one corner to another diagonally is 90 seconds or 1.5 minutes.

What is an expression?

The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.

Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.

Given that a fly can walk around a cubical block in two minutes.

The time taken to cover all the one edge is,

T = 120 / 4

T = 30 seconds

To get from 1 corner to the diagonally opposed opposite corner the fly would walk on 3 edges, so it would take 90 seconds. Mathematically written as,

To = 3 x 30

To = 90 seconds

To = 1.5 minutes

Therefore, the time taken to cross from one corner to another diagonally is 90 seconds or 1.5 minutes.

To know more about an expression follow

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Enter your answer and show all the steps that you use to solve this problem in the space provided.

Factor the expression.

20k + 50


need answers now pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls pls

Answers

10(2k +5)

When you factor you take the GCF of both numbers and place it outside of the parentheses

There are 40 students in Joan’s class. She plans to invite them to her birthday party. She asked them to suggest a theme for her party. Three of every eight students suggested a rainbow-themed party. How many students suggested a rainbow-themed party? How many did not?

Answers

Answer:

15 people suggested, 25 did not

Step-by-step explanation:

3 of every 8 so 3:8

There is 40 students in total, so 40/8=5. 5*3=15

15 people suggested, 25 did not

Answer:

15 students suggested a rainbow-themed party.

25 students did not suggest a rainbow-themed party.

Step-by-step explanation:

40 students

3 out of every 8 students suggested rainbow them

40/8 = 5

5 groups = 40 students

1 group = 8 students

3 × 5 (amount of groups) = 15

15 students suggested a rainbow-themed party.

40 - 15 = 25

25 students did not suggest a rainbow-themed party.

incase you cant read it, it asks: Match each correlation with its strength and direction. Explain your reasoning. PLEASE BRO THIS IS DUE TOMORROW

Answers

Answer:

C.)

Step-by-step explanation:

c Is the correct answer

Maria is renting kayaks from a local shop that charges a $10 fee, plus an hourly rate of $7.50.
For how long can Maria rent the kayak if she pays a total of $70?
6 hours
7 hours
8 hours
9 hours

Answers

8 hours it’s kinda easy for me but maybe not for you

Also it would help a lot if you gave me brainliest answer
10 + 7.50(h)
10+7.50
17.50
70-17.50
52.50/7.50
7 hours

Divide. Reduce the answer to lowest terms.

5 2/3÷ 3 1/9

****NEED AS A FRACTION OR MIXED NUMBER NOT DECIMALS****

Answers

The answer is …..
1 23/28
i’ll explain this!
first, turn into improper fraction. so.. 5 times 3 is 15 plus 2 is 17. so 17/3 . then, 3 times 9 is 27 plus 1 is 28. so 28/9. do keep change flip. so, 17/3 times 9/28. this is 153/84 . now, in mixed number is 1 69/84

Hall swam 34 laps in 1 2/3 hours. Find his swimming rate in laps per hour

Answers

1 2/3 = 5/3

5/3 ÷ 5/3 = 1

34 ÷ 5/3 = 34 x 3/5

102/5 = 20.4

20.4 laps per hour
First convert your fraction into a decimal
1 2/3 =1.66
They swam 34 laps so take 34 and divide it by 1.66
34/1.66= 20.48
So his swimming rate is 20.48 laps per hour

50 divided by 7???


JUST ANSWER PLEASE XDD

Answers

7 1/7
OR
7.14
Hope this helps

Answer:

7 1/7 or ~7.14

Step-by-step explanation:

Use long division. See the attached image for my work.

Which set of side length measurements in meters does NOT make a right triangle?

A. 9m, 11m, 13m
B. 18m, 24m, 30m
C. 7m, 24m, 25m
D. 20m, 21m, 29m

Answers

C doesn’t make it a right angled triangle

The set of side lengths which does not form a right triangle is 9m, 11m, 13m

What is a Triangle?

A triangle is a plane figure or polygon with three sides and three angles.

A Triangle has three vertices and the sum of the interior angles add up to 180°

Let the Triangle be ΔABC , such that

∠A + ∠B + ∠C = 180°

The area of the triangle = ( 1/2 ) x Length x Base

For a right angle triangle

From the Pythagoras Theorem , The hypotenuse² = base² + height²

if a² + b² = c² , it is a right triangle

if a² + b² < c² , it is an obtuse triangle

if a² + b² > c² , it is an acute triangle

Given data ,

Let the triangle be represented as ΔABC

Now , the measure of sides of the triangle are

AB = 9 m

BC = 11 m

AC = 13 m

Now , for a right angle triangle

From the Pythagoras Theorem , The hypotenuse² = base² + height²

AC² = AB² + BC²

On simplifying , we get

13² = 9² + 11²

169 ≠ 81 + 121

Hence , the sides 9m, 11m, 13m does not form a right triangle

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Write a real world situation that could be modeled by the expression, 300+7x.

Answers

Answer:

Imagine you have buy a car. The first payment for the car you pay $300. Now you will pay x amount for 7 more months until you pay off your car.

Step-by-step explanation:

Answer: Timmy buys a watch for 300 dollars, but he still has to pay 7 dollars for x amount of months.

Step-by-step explanation:

Tristan and three of his friends travel across the country. They spend three days at a hotel. They decide to split the cost of the hotel room that cost a total of $275.00. How much did each person spend? Use long division to answer

Answers

Answer:90

Step-by-step explanation: If you do 275 divided by 3 it equals 90

Can you please help me????

Answers

Answer:

19.2

Step-by-step explanation:

[24 + 1.5(16)] / 2.5 = 19.2

Or

[24 - 1.5(16)] / 2.5 = 0

Answer:19.2

Step-by-step explanation:

Hey! I have a assignment due on transversals of parallel lines: solve for x. If someone can help it would be amazing! Thank you!

Answers

Answer:   9

Explanation:

The angles marked are corresponding angles, since they correspond in the same direction. Both are pointing to the southwest direction.

Since line DE is parallel to line FG, this means the corresponding angles mentioned are congruent.

Set them equal to each other and solve for x.

7x+18 = 81

7x = 81-18

7x = 63

x = 63/7

x = 9

HELP ME THIS IS URGENT!!!!!!!!!!!!!!
Are 9/12 and 21/24 equivalent ratios? Explain.

Answers

1st divide

9/12= 0.75

21/24=0.875

therefore 21/24 is a greater fraction

21/24 is a greater fraction

Which is the correct answer

Answers

Answer:

B

Step-by-step explanation:

A is just moving the shape left

C is flipping the shape the opposite direction

B rotated the shape

If you mean, Rotating the whole square, then yes. The answer is "B"

BUT! If you mean rotating the triangle in it-self, THEN the real answer is "C"!

DON'T GET IT WRONG!! Best of fortune! : )

What is the first step in subtracting fractions??

Answers

Answer:

make sure they have the same denominator

Find a common denominator

Which expression has a value of 8? (10 points)

a
720 ÷ 9
b
720 ÷ 90
c
7,200 ÷ 9
d
7,200 ÷ 90

Answers

Answer: b. 720 ÷ 90 = 8

Answer:

b

Step-by-step explanation:

You have to solve all the equations to find which one equals 8

For a, you can take away the zero which leaves you with 72/9 which is 8. Then you add the zero back to the answer which gives you 80.

For b, you can cancel out the zeroes from 720 and 90 which gives you 72/9 again. That leaves you with 8.

For c, take away the zeroes leaving you with 72/9. Then you have 800 when you add the zeroes back.

For d, you can cancel out one of the zeroes which will give you 720/9. Then you take away the zero and now you have 72/9 again. Then add the zero to the answer which will give you 80.

Because b is the only equation that equals 8, it must be the answer.

A poster tube storage in the Sahel of a cylinder has a diameter of 3.5 inches and a volume of 122.5(pi) Cupid inches. What is the height of the poster storage tube?

Answers

Answer: 12.7

Step-by-step explanation:

r=d/2

3.5/2=r

r=1.75

v=pir²h

122.5 =piR²h

122.5=pie1.75²h

The frist thing to solve for r sense exponents come before multiplication in bedmask

122.5 =pi3 .06g

so then it's pie times r

122.5=9.61 *h

122.5/9.61=h

12.7=h

Answer: h≈12.73in

Right cylinder

Solve for height

h≈12.73in

d Diameter

3.5

in

V Volume

122.5

in³

h

r

h

r

r

h

A

b

Using the formula

V=π(d

2)2h

Solving forh

h=V

π(d

2)2=122.5

π·(3.5

2)2≈12.7324in

Step-by-step explanation:

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