Kenya uses mental math to find the sum of 235 and 23. She uses 235,20 and one other number. What is the missing number

Answers

Answer 1

Answer:

Step-by-step explanation:

She is missing 3. 235 plus 20 is 255 but the answer is 258 so she is missing 3


Related Questions

look at the picture please also be quick bec

Answers

unfortunately there is no picture, im sorry

is a persons weight a function of their height why

Answers

Answer:

nope

Step-by-step explanation:

it's not because let's say for example we have two students who weigh 130 pounds on of them could just be very wide but the other one could be really tall which results in his weight.

Although in some cases if both people are athletes and you say that they are not wide then it could give you a not exact estimate of how tall he is.

Find the whole number equal to the fraction below. Enter your answer in the
space provided

Answers

Answer:

7

Step-by-step explanation:

42/6= 7

---

its a sort of memorization thing youll know when you do enough of them.

if not, you can divide by smaller parts.

3*2=6 so you can divide 42 by 2, and then 3 if that is easier

42/2

=21

then divide by 3 =7

Answer: 7

Step-by-step explanation: If you simplified 42/6 you would get 7 and 42/6 is basically 42 ÷ 6 which equals 7.

Sally used a ruler to draw the segment ab she then opened her compass to the length of ab and drew a circle keeping thw compass open to the same length she marked off equal parts along the circle as shown in the following figure using some or all of the points of intersection and point a which of the following regular polygons could she construct

Answers

Answer:

Step-by-step explanation:

Equilateral Triangle

Regular Hexagon

3 of 8
The perimeter of an equilateral triangle is 105mm.
State the length of one of its sides.

Answers

Answer: 60

Step-by-step explanation:

in geometry all of the equilateral triangles sides are all 60 degrees.

every side and angle is the same. every side equals 35; 105 divided by 3

What is the value of 3^2x+1, if 3^x=a

Guys HELPPPPP

Answers

Step-by-step explanation:

We use the power rule a^(x+y) = a^x * a^y:

3^(2x+1) = 3^(2x) * 3

We can re-write 3^(2x) as (3^x)^2, and we know that 3^x = a, so:

3a^2 is the final answer. There is not exact value, it's all just about re-writing.

[tex]3a^2 [/tex] is a required answer.

Answer:

solution given:

[tex]3^{2x+1}=? [/tex]

if [tex] 3^x=a[/tex]

By using power rule, we can write

[tex]3^{2x+1}[/tex] as

[tex]3^{2x+1}=(3^x)^2*3^1 [/tex]

[tex]a^2*3=3a^2 [/tex]

Someone help, thanks

Answers

Answer:

i speak very little english sorry

Step-by-step explanation:

Help needed rn i have a few minutes left

Answers

Answer:A

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

Match each set of prices with the correct percent of increase or decrease. 12.4% decrease 7.4% increase 9.9% increase 8.7% decrease 8% increase 11% increase 11% decrease 8% decrease original price: $37.50 new price: $34.50 arrowRight original price: $63.00 new price: $56.07 arrowRight original price: $98.00 new price: $108.78 arrowRight original price: $12.25 new price: $13.23 arrowRight

Answers

Answer:

12.4

Step-by-step explanation:

Answer:

1. decrease by 8%

2. decrease by 11%

3. increase by 8%

4. increase by 11%

Step-by-step explanation:

TE Irene has a collection of 32 dolls that have either blue eyes or green eyes. She has 14 more green-eyed dolls than blue-eyed dolls. How many dolls of each type does Irene have? Let x represent the number of green-eyed dolls. Let y represent the number of blue-eyed dolls.​

Answers

The formula

x + y = 32

Find our X value

y + 14 = x

Sub for x

(y + 14) + y = 32

Remove Parathesis

y + 14 + y = 32

Add

2y + 14 = 32

Subtract

2y = 18

Divide

y = 9

Sub for y

x + 9 = 32

Subtract

x = 23

Double Check:

9 + 14 = 23

23 + 9 = 32

I hope this helps! :)

Which number line represents the number 0.7

Answers

Answer:

What number like?

Answer: The answer is C.

The question I assume you are talking about is in the image.

(5 + 16) = 7 + (4 x 7) =
Bidmass

Answers

Answer:

(5 + 16)=7 + (4 x 7)

Step by step - explanation:

Solve:

Add the numbers

(5 + 16)= 21.

(4 x 7) = 28 + 7 = 35.

So the result is 21 = 35.

Hope that helps. x

Answer:

Step-by-step explanation:

(5+16)=7+(4.7)

(21)=7+(4.7)

21=7+(4.7)

21=7+(28)

21=7+28

21=35

Answer: 21=35

What is the determinant of
[-2 2 b ]
A= [ 0 3 a ] ?
[ 0 0 -5]

A) -30
B) -4
C) 30
D) 60

Answers

I think the answer is c

Fill in the missing values.
151.5 cm =? m
151.5 cm = ? m
(Type an integer or a decimal.)

Answers

Answer:

151.5 cm = 1.515 m

151.5 cm = 1515/1000 m

Grapes are 2.55 per pound and on two separate occasions Dana went to the store to
buy grapes. The first time she went to the store she bought 3.25 pounds of grapes
and during the second visit to the store she purchase 1.25 pounds of grapes.
Rounded to the nearest cent, what is the total amount that Dana paid for the grapes?
$7.25
$12.35
$11.48
$7.05

Answers

Answer: $11.48

Step-by-step explanation:

First of all, you have to multiply 3.25 by 2.55 because the grapes are 2.55 per pound. That makes 8.2875 for the first occasion. Next, you have to multiply 1.25 by 2.55 for the second occasion. That makes 3.1875. You then have to add 8.2875 and 3.1875. You get 11.47500, and that rounded to the nearest cent is $11.48.

Solve using substitution. (Explanation too please)

y = 7x + 2
y = 10x − 1

Answers

X=1 ( don’t mind my scrap paper lol)

Antonio wants to examine the sales in a restaurant during a period of time from 2 hours before to 2 hours after the peak dinner time and graph his results. If the peak dinner time is considered to be at 6 p.m., what would be the domain for the graph Antonio is creating?

Answers

Using function concepts, it is found that the domain of the graph Antonio is creating would be: [tex]4 \leq x \leq 8[/tex]

The domain of a function is the set that contains all possible input values.

In this problem, the inputs are the time, between 2 hours before and 2 hours after the peak time of 6 pm, hence, it is given by: [tex]4 \leq x \leq 8[/tex]

For more on the domain of functions, you can check https://brainly.com/question/24374080

What number group includes only the counting number and 0

Answers

Answer:

Integers

The set of numbers including all the whole numbers and their opposites (the positive whole numbers, the negative whole numbers, and zero)

Which theorem explains why the circumcenter is equidistance

Answers

Perpendicular Bisector Theorem

Minh spent $3.50 on 25 stickers.

How much did each sticker cost?

Answers

Answer:

0.14

Step-by-step explanation:

brainliest please

Each sticker costs 14 cents

how can you isolate the term f/3

Answers

F/3 +22=17
F/3 +22-22=17-22 subtracting the same value from both of the sides keeps the equation equal. Then simplify. Simplify the +22 and -22= 0 they cancel each other out.
17-22=-5
F/3=-17 f/3 is now isolated by itself
Next step is to multiply both sides by 3

18. A glasscutter needs to cut rectangular pieces of
glass to make an aquarium. How can he make sure
that the glass pieces he is going to cut are
rectangular in shape? Justify your reasoning

Answers

For the cut glass pieces to be rectangular in shape, the glass cutter should ensure:

All four interior angles = 90° each.Opposite sides are parallel and equal to each other.Diagonals should be of the same length and should bisect each other.

Properties of a RectangleAll four angles of a rectangle are 90° each.There are two pairs of parallel sides that are equal in length.The diagonals bisect each other and are of equal length.

Thus, to ensure the cut glass pieces are rectangular in shape, he should ensure the following:

Make the four interior angles 90° each.The opposite sides should be parallel and equal to each other.The diagonals should be of the same length and should bisect each other.

Learn more about properties of rectangle on:

https://brainly.com/question/2835318

help plsssssssssssssss

Answers

Answer:step 2

Step-by-step explanation:

vnicn letter on the map indicates the location of the North China Plain?
AAA
o
О В
О С
OD
F

Answers

Answer:

The letter C

Step-by-step explanation:

North china plain runs along near the northern east border. It's territory has a noticeable river going through it, and is close to the Gulf of Jilin. A is most likely not correct, since North china plane doesn't go up that high the Yellow river. So it is safe to assume the answer is most likely C

Solve the inequality below for t.
3 - 13t >/= -9 - 9t

Answers

Answer:

T is =/> 3

Step-by-step explanation:

Add 9t to both sides, 3-4t>/= -9 . Subtract 3 from both sides. -4t>/=-12

divide 12 by 4 for 3. Because 3 results in equality between both sides, it is equal, however if t is greater than 3, the lefthand side becomes greater than the right.

19z+12=20z–8
help i dont really understanddd!!!

Answers

Answer:

z = 20

Step-by-step explanation:

subtract 19z from 20z, and add 8 to 12. you will be left with 20 = 1z. Divide 1 by 20 and you will have Xz =20.

I hope this helps!

David has a checking account at City center Bank. During the month of April, he made deposits totaling $985.89 and wrote checks totaling $454.27 .He paid a maintenance fee of $18 and earned $2.95 in interest. His balance at the end of the month was $3,005.32. What was the balance at the beginning of April?

Answers

April of beginning the at balance the was what

What is thirty three and a third percent of 237?

Answers

Answer:

79

Step-by-step explanation:

(237)(1/3) = 79

What is m∠JNK? Enter your answer in the box.

*NOT a question, I had trouble with this on my test and couldn't find anyone that had asked, so here is the correct answer. Merry Christmas everyone! :-)

Answers

Answer:

Merry Christmas too!!

Step-by-step explanation:

Stay safe lovelots

#LEARN WITH BRAINLY

WILL GIVE BRAINLIEST TO

Answers

Answer: [tex]\frac{(y+2)^{2} }{4} - \frac{(x-4)^{2} }{9} =1[/tex]

Step-by-step explanation: Big brain

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