Solve 210 ÷ 30 = ___ using mental math.

7
70
700
7,000

Answers

Answer 1
The answer would be 7
Answer 2

Answer:

7

-by-step explanation:

none needed just do it in your head like 21 devided by 3=7


Related Questions

Write an exponential expression: choose a number between 0 and 10 to be the base and another number between 0 and 10, different from the base, to be the exponent. Label the base and the exponent. Then write the exponential expression in expanded form and standard form.

Answers

Answer:

2^4

2 * 2 * 2 * 2

Step-by-step explanation:

In the question above :

Write an exponential expression:

Base = number between 0 and 10

Exponent = number different from the base between 0 and 10

Let base = 2

Let exponent = 4

Hence, exponential expression will be

Base^exponent

2^4 (standard form)

Expanded form:

2 * 2 * 2 * 2 (multiply 2 in 4 places)

Convert 9340 m to km

Answers

Answer:

9.34 km

Step-by-step explanation:

m to km = m ÷ 10009340 ÷ 1000 = 9.34

I hope this helps!

Answer:

[tex]9. 34[/tex]

Step-by-step explanation:

[tex]M to KM \\1m = 0.001 KM\\9340M = 9.34 KM\\\\Hope \\ this \\helps[/tex]

please help!!!!!! I will mark brainliest!!!

Answers

Answer:

second dot choice thing

Answer:

The second dot that is the answer.

Step-by-step explanation:

hope this helps.

Jose's school is selling tickets to a choral performance. On the first day of ticket sales
the school sold 3 adult tickets and 7 child tickets for a total of $132. The school took
in $141 on the second day by selling 4 adult tickets and 7 child tickets. What is the
price each of one adult ticket and one child ticket?

Answers

Step-by-step explanation:

let x be the price of the adult ticket and y the price of child ticket

so

3x+7y=132

4x+7y=141

from the first equation 7y=132-3x

lets replaxe this from the second equation

4x+(132-3x)=141

4x-3x=141-132

x=9

so knowing that 7y=132-3x

7y=132-3*9

7y=105

y=105/7=15

so finaly the adult ticket cost 9 dollars and child ticket cost 15 dollars

help show work
assig 8

Answers

Answer:  see below

Step-by-step explanation:

8)   3x ≥ 24

   ÷3    ÷3  

     x  ≥  8

Graph:        ·--------→

                 8

Interval Notation: [8, ∞)

PLEASE HELP ITS TIMED
The inside of an oven is set to rise to a temperature of 298F . So far it has risen 76% of this amount.
Which would be the best way to estimate the number of degrees Fahrenheit the inside of the oven has risen so far?
Find 70% of 200.
Find 80% of 300.
Find 80% of 200.
Find 70% of 300.

Answers

Answer:

Find 70% of 300

Step-by-step explanation:

I calculated the different percentages, and 70% of 300 was the one that came closest to 76% of 200.

write an equation given a slope of 1/2 that goes through the ordered pair (2,4)​

Answers

Answer:

y= 1/2x +3

Step-by-step explanation:

The temperature in Coldspot is -7o F and increasing 2.5o per hour. The temperature in Frostberg is 19 degrees F and decreasing 4 degrees per hour.
a. How long will it be until the temperatures are the same?
b. What will the temperature be then?

Answers

Answer:

It will take 4 hours for the temperatures to be the same. The temperature will be 3° at that time.

Step-by-step explanation:

Coldspot = -7 + 2.5x

Frostberg = 19 - 4x

First, we are going to input our values into the variable in a table.

          Coldspot                            Frostberg

1     -7 + 2.5(1) = -4.5                    19 - 4(1) = 15

2     -7 + 2.5(2) = -2                     19 - 4(2) = 11

3     -7 + 2.5(3) = 0.5                   19 - 4(3) = 7

4     -7 + 2.5(4) = 3                      19 - 4(4) = 3

It will take 4 hours for the temperatures to be the same. The temperature will be 3° at that time.

Hope this Helps! :)

Have any questions? Ask below in the comments and I will try my best to answer.

-SGO

Answer:

4 hours

Step-by-step explanation:

Kaitlin runs 6 miles in 50 minutes at the same rate how many miles would she run in 35 minutes

Answers

Answer:

4.2 miles

Step-by-step explanation:

6/50=.12

.12*35=4.2 miles

9 - 6(x+1) = 2(x-4) + 27

Answers

Hey :)

1) Use the distributive property to multiply −6 by x + 1

9−6x −6 = 2(x−4) +27

2) Subtract 6 from 9 to get 3

3−6x =2(x−4) +27

3) Use the distributive property to multiply 2 by x−4

3−6x =2x−8 +27

4) Add −8 and 27 to get 19

3−6x = 2x +19

5) Subtract 2x from both sides

3−6x −2x = 19

6) Combine −6x and −2x to get −8x

3−8x = 19

7) Subtract 3 from both sides

−8x= 19−3

8) Subtract 3 from 19 to get 16

−8x = 16

9) Divide both sides by −8

x= 16/-8


10) Divide 16 by −8 to get −2

x=−2


Hope this helps :D

the square root of 81

Answers

Answer:9

Step-by-step explanation:

The square root of 81 is 9. This is because 9x9 is 81. Hope this helps :)

what is -8 = 7 - 3/2 x ​

Answers

X=10. Hope this helps!

Which represents a quadratic function?
f(x) = -8x3 - 16x2 - 4x
f(x) = 3/4 x2 + 2x - 5
f(x) = 4/x2 - 2/x + 1
f(x) = 0x2 - 9x + 7

Answers

C but i could be wrong.

If 1 gallon of orange juice cost 6.25. How much does it cost for 128 ounces of oj?

Answers

Answer:

$6.25

step-by-step explanation:

a gallon of oj coat 6.25

there are 128 ounces in a gallon

so 6.25 for 128 ounces is just a gallon

so 128=1 gallon. so its just $6.25

PLEASEEEEE HELP

f(x) = 2x^2+ 6 when f (4)

Answers

Hopefully this is right!

Please help! I'm very behind on work and just don't have the time to catch up without costing the grade of another class. Thank you so much!

Answers

Answer:

5. alternate exterior, p

6. consecutive interior, r

7. consecutive exterior, s

8. alternate interior, q

9. corresponding, s

Step-by-step explanation:

24 for 4 quarts
find the rate​

Answers

Answer:

UNIT CONVERSION FACTOR. Length ... 1 gallon = 4 quarts or or or or ... 24 hr. 1 week. 7 days. 7 days. 1 week. 8 fl oz. 1 cup. 1 pt. 2 cups. 2 pts. 1 qt. 1 cup.

Quarts. Gallons. 5 Gallons. 24 oz. Trigger Spray. Bottle. To make a quart of solution use ... concentrate. Dilution. Ratio. Add this amount of concentrate. 1:4. 6.5 oz. 1:4 ... When mixing cleaners, you may find it helpful to fill your container with the.

Step-by-step explanation:

The area of a triangle is 1,440 cm2. The base of the triangle is 5 times the height. What is the height of the triangle?

Answers

Answer:

The height of triangle is 24 cm.

I need help with this please

Answers

Answer:B am pretty sure

Step-by-step explanation:

how do i solve equations with fractions in them?

Answers

What type of equations? do you mean something like (3x2/8)-20

1. A local pizzeria sold 85 pizzas yesterday

(a) The owner offers the employees a bonus if the number of pizzas sold increases by 20% today. How many pizzas must the pizzeria sell for employees to receive the bonus?


(b) Suppose the actual number of pizzas sold today was 65. Describe the number of pizzas sold as a percent increase or decrease rounded to the nearest hundredth.

PLEASE ANSWER ASAP!

Answers

Answer:

(a) 102 (b) 65.5

Step-by-step explanation:

(b) 85-23%=65.45 Round 65.45 up to 65.5

Jaime’s older brother and his three friends want to split the cost of lunch. They also want to leave a 15%–20% tip. How much should each person pay?

Answers

Answer:

First you have to split the cost of the meal and percentage so

$78.00 divided by 4 that's $19.50 each then after the 20% each would pay $23.40

Each person pay $23.4.

Given, from the fig the total cost of lunch without tip is $78.

Now, Jaime’s older brother and his three friends want to split the cost of lunch between them. So there is total 4 person.

Now each person have to pay [tex]\frac{78}{4} = $ 19.5[/tex]  dollars.

Further they decided to pay tip say 20% so, the amount of tip is 20% of $78.

On calculating amount of tip [tex]=\frac{20}{100} \times 78=15.6[/tex].

Tip is divided among them so per person has to pay tip [tex]=\frac{15.6}{4} =3.9[/tex] dollars.

So, the total amount each person has to pay [tex]=19.5+3.9=23.4[/tex] dollars.

Hence each person pay $23.4.

For more details on conversion follow the link:

https://brainly.com/question/505416

please help me. Calculus AB. WILL GIVE BRAINLIEST ANSWER​

Answers

Answer:

E. -4

General Formulas and Concepts:

Algebra I

Reading a coordinate planeCoordinates (x, y)Slope Formula: [tex]\displaystyle m = \frac{y_2 - y_1}{x_2 - x_1}[/tex]

Calculus

Derivatives

The definition of a derivative is the slope of the tangent line

Derivative Notation

Step-by-step explanation:

Step 1: Define

Identify

Given a graph of g(x) and asked to find g'(0).

Step 2: Find

We approximate g'(0) by finding the tangent line at x = 0.

Identifying points (1, -4) and (-1, 4), we can find the tangent line:

Substitute in points [Slope Formula]:                                                              [tex]\displaystyle m = \frac{4 - -4}{-1 - 1}[/tex][Slope] Subtract:                                                                                               [tex]\displaystyle m = \frac{8}{-2}[/tex][Slope] Divide:                                                                                                  [tex]\displaystyle m = -4[/tex]

Topic: AP Calculus AB/BC (Calculus I/I + II)

Unit: Derivatives

Book: College Calculus 10e

What is the distance between -3 and 12?

Answers

Answer:

-15

Step-by-step explanation:

The required solution is 15.

It is required to find the solution.

What is arithmetic?

Arithmetic is the branch of mathematics that deals with the study of numbers using various operations on them. Basic operations of math are addition, subtraction, multiplication and division. These operations are denoted by the given symbols.

Given:

By the distance formula we get,

Distance between -3 and 12 is

=12-(-3)

=15

Therefore, the required solution is 15.

Learn more details about arithmetic here:

https://brainly.com/question/11559160

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The numbers -12, -7, -2, 3 follow a pattern. What are the next three numbers in this pattern?

Answers

Answer:

8,13

Step-by-step explanation:

The pattern in +5 so 3+5=8, and 8+5=13

Answer:

8, 13, 18

Step-by-step explanation:

A train travels 170 miles in 4 hours . How far will the train travel in 6 hours , if it travels at the same speed ? Answer Choices : (A) 240 mi , (B) 245 mi , (C ) 252 mi , (D) 255 .

Answers

Answer:

(170/4)x61= 255

Step-by-step explanation:

The sum of twice n and 5

Answers

Answer:

it is either 2^n+5 or n²+5

Step-by-step explanation:

I'm not one hundred percent sure

The perimeter of a rectangle is 36 m. If the length is three times the width, what is the length?

Answers

Answer:

13.5 meters

Step-by-step explanation:

As the rectangle has 4 sides and the length is three times the width, each pair of a long side and a short side has a perimeter of 18 meters. As the ratio is 3:1, there are 4 parts in 18 meters, and 18 divided by 4=4.5. As the length covers 3 parts, and there are 4.5 meters per part, 4.5x3=13.5. The length of the rectangle is 13.5 meters. Hope it helps!

The side with intermediate length is:
1. OD
2. DE
3 EO

Answers

Answer:

I don't know exactly, I think it is EO, but I could be wrong.

Step-by-step explanation:

The side with intermediate length is OE .

What is the relationship between length of side of triangle and their interior  angle ?

Relationship of sides to interior angles in a triangle

In any triangle:

The shortest side is always opposite the smallest interior angleThe longest side is always opposite the largest interior angle

According to the question

Side opposite to smallest ∠20° = OD

Side opposite to largest ∠110° = DE

Side opposite to intermediate ∠50° = OE

Now,

according to the relationship between length of side of triangle and their interior angle

The smallest side is opposite the smallest angle, and the longest is opposite the largest angle, then it follows that since a triangle only has three sides, the midsize side is opposite the midsize angle.

Therefore,

OD = smallest side

DE = Largest side

OE = intermediate side

Hence, The side with intermediate length is OE .

To know more about the relationship between length of side of triangle and their interior angle here:

https://brainly.com/question/24083446

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143.596 rounded to the nearest hundredth

Answers

Answer:

143.6

Step-by-step explanation: its 143.6 because 9 rounded to the nearest number is 10 and that bumped the 5 to a six

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