Mathematics College

2(a-b) lenguaje común
​

Answers

Answer 1

Answer:

2a-2b

Step-by-step explanation:

If you want it simplified you just have to remove the parentheses so the 2 affects both the A and the B

Related Questions

if you bought a stock last year for a price of $120 and it has gone down 10% since then how much is the stock worth now

Answers

Answer:

$108

Step-by-step explanation:

Since $120 is divisible by ten, we can just simply do 120/10, which is twelve. So, 10% of $120 is $12. $120 - $12 = $108

help please with math pleaseee

Answers

Answer:

i dont get it at all good luck in your test

2 apples + y apples -5 apples = 10 apples

Answers

Answer:

y = 13 apples

Step-by-step explanation:

2 apples + y apples -5 apples = 10 apples

2 + y - 5 = 10

-3 + y = 10

y = 10 + 3

y = 13 apples

Answer:

13y I think.

Step-by-step explanation:

Good Luck! I hope it's right;

does anyone know 3²?

Answers

Answer:

It is 9.

Step-by-step explanation:

need help geometry ...........

Answers

Complete the statement :

[tex]\color{plum}\tt2x + 7° = \underline{65} \: degrees[/tex]

Steps to derive the correct solution :

The exterior angle corollary states that the measure of a triangle's exterior angle is the sum of the opposite interior angles of the exterior angle.

Which means :

∠36° + ∠x° = ∠(2x + 7)°

Let us solve this equation to find the measure of the exterior angle :

[tex] =\tt 2x + 7 = 36 + x[/tex]

[tex] = \tt2x + 7 - x = 36[/tex]

[tex] =\tt x + 7 = 36[/tex]

[tex] = \tt \: x = 36 - 7[/tex]

[tex] =\tt x = 29[/tex]

Thus, the measure of ∠x = 29°

Then, the measure of the exterior angle :

[tex] = \tt2 \times 29 + 7[/tex]

[tex] = \tt58 + 7[/tex]

[tex] = \tt65[/tex]

Thus, the measure of the exterior angle 2x+7 = 65°

Let us check whether or not we have found out the correct measure of each angle by placing 29 in the place of x:

[tex] = \tt2 \times 29 + 7 = 36 + 29[/tex]

[tex] =\tt 58 + 7 = 36 + 29[/tex]

[tex] = \tt65 = 65[/tex]

Since the measures match we can conclude that we have found out the correct value of each angle.

Therefore, ∠2x + 7° = 65°

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Answers

Answer:

...

Step-by-step explanation:

Answer:

Ok

Step-by-step explanation:

lolahsusnakaijaahasjssn

Picture shows the questions

Answers

Answer:

121 cm

Step-by-step explanation:

12x13=156

7x5= - 35

________

121

Guys help me with this question please

Answers

Answer:

2/7

Step-by-step explanation:

From 8 am to 3 pm, there are 7 hours, and the price changed $2 (52 - 50 = 2)

In order to find the Change in price per hour, divide the total price change by the number of hours. (in most questions with the word "per", it is a division problem)

2$ / 7hrs = 2/7 dollars per hour

the answer is 2/7 if you work out the problem

Show three ways to
quarter a circle.
OOO

Answers

Answer:

um i.....

dont know

Step-by-step explanation:

a chord subtends an angle of 34 at the center of a circle of radius 4cm find the length of the chord (take =22/7)​

Answers

Answer:

2.34 cm

Step-by-step explanation:

From the question given above, the following data were obtained:

Angle at the centre (θ) = 34°

Radius (r) = 4 cm

Length of chord (C) =?

The length of the chord can be obtained as follow:

C = 2rSine(θ/2)

C = 2 × 4 × Sine(34/2)

C = 8 × Sine 17

C = 8 × 0.2924

C = 2.34 cm

Therefore, the lenght of the chord is 2.34 cm.

Which expression is equivalent to (8x - 1) (4x + 3) ?

Answers

Answer:

A

Step-by-step explanation:

multiplying both the equation

HELP IMMIDIATELY MY TEACHER IS TIMING ME! 30 POINTS

Answers

Answer:

27 and 23

Step-by-step explanation:

How many division facts can you write to represent the factors of 15?

Answers

Answer:

4 division facts

John began his job making $125 the first week. After that he ws paid $6.25 per hour. Write the equation in slope intercept form to represent the situation.

Answers

Answer:

y=6.25x+125

Step-by-step explanation:

Given that,

John began his job making $125 the first week. After that he was paid $6.25 per hour.

Here $125 is fixed and $6.25 increase per hour. It means we can write the equation as follows :

y = 125 + 6.25 x

The general equation for the slope-intercept form is given by :

y = mx+x

m is slope

So, the equation in slope intercept form is given by :

y=6.25x+125

Hence, this is the required solution.

a)  y= 0.05x + 16

b)  y= 6.25x + 125

c)  y= 2x + 10

d)  y= 3x + 5

Answer: B) y = 6.25x + 125

Which one is the answer.

Answers

Minus 1 on both sides
Divide by 3 on both sides
C 5 > 7/3

Help plxzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzxzxfde

Answers

Answer:

18 boxes lol

Step-by-step explanation:

the answer is 18 boxes

410÷24=17.083...

he needs to pack all of them so the answer is 18.

hope that helped.

60÷(63÷7)=
I don't understand plz help​

Answers

Answer:

answer is simple

first we will solve the bracket

(63÷7)

it is 9

and then 60÷ 9

which gives 6.67

(WILL GIVE BRAINLIEST)

Suppose that IJK is isosceles with base IJ.
Suppose also that m<1 = (3x +18) and m Find the degree measure of each angle in the triangle.

Answers

Answer:

m<I=57

m<J=57

m<K=66

Step-by-step explanation:

All the angles in a triangle add up to 180 degrees.

m<I= 3x+18

m<K= 5x+1

m<I is congruent to m<J.

We can plug the information we already know into the equation.

3x+18+3x+18+5x+1=180

11x+37=180

Subtract 37 from both sides.

11x=143

x=13

Now, we can find out what the angles are.

m<I= 3x+18

m<I=3(13)+18

m<I=39+18

m<I=57

We know that m<I=m<J, so they are both equal to 57 degrees.

m<J=57

Now for m<K:

m<K=5x+1

m<K=5(13)+1

m<K=65+1

m<K=66

We know this is correct because 57+57+66=180.

Please help im confused

Answers

Answer:

RST

Step-by-step explanation:

The question is asking you to complete the congruence statement. In a congruence statement, the corresponding angles must be in the same order they are in, in the first half of the statement. In the first triangle <M=79, <N=60, and <O=42. So the other half must be in this same order. In the other triangle <R=79, <S=60, and <T=52, which is why the answer is RST.

A school luncheon made $630. Adult tickets cost $11 each and child tickets cost eight dollars each. The number of children was half the number of adults. How many of each ticket were sold?

Answers

Hello! Lets first start with defining our variables:
a = adult tickets
c = child tickets
Now let’s set up a system of equations:
11a + 8c = 630
c = 1/2a (this can be confusing to some people but the CHILDREN TICKETS = HALF THE ADULT TICKETS)
Ok now we have to solve this:
11a + 8c = 630
c= 1/2a [you can solve this system of equations using substitution!]
11a + 8(1/2a) = 630
11a + 4a = 630
15a = 630
a = 42 (now we know our a value and we can plug that in to find c!)
c = 1/2a
c = 1/2(42)
c = 21
you can check this by plugging in your c and a value into both equations! I hope this helps! :)
Answer: a=42, c=21

Consider the following statement. If n is divisible by 6, then n is divisible by 2 and n is divisible by 3.

Negation

a. n is divisible by 6 and either n is not divisible by 2 or n is not divisible by 3.
b. If n is not divisible by 2 or n is not divisible by 3, then n is not divisible by 6.
c. If n is divisible by 2 and n is divisible by 3, then n is divisible by 6.
d. If n is not divisible by 6, then n is not divisible by 2 or n is not divisible by 3.
e. If n is not divisible by 6, then n is divisible by 2 and n is divisible by 3.

Answers

Answer:

b. If n is not divisible by 2 or n is not divisible by 3, then n is not divisible by 6.

Step-by-step explanation:

Division by Six

A number is divisible by six if it is divisible by both 2 and 3.

Negation:

If the number is not divisible by either 2 or 3, it is not by 6. So the answer is given by option b.

b.

Step-by-step explanation:

Division by Six

A number is divisible by six if it is divisible by both 2 and 3.

Negation:

If the number is not divisible by either 2 or 3, it is not by 6. So the answer is given by option b.

If the simple interest on $7,000 for 5 years is $2,800, then what is the interest rate?

Answers

Answer:

8%

Step-by-step explanation:

Solving our equation

r = 2800 / ( 7000 × 5 ) = 0.08

r = 0.08

converting r decimal to a percentage

R = 0.08 * 100 = 8%/year

The interest rate required to

accumulate simple interest of $ 2,800.00

from a principal of $ 7,000.00

over 5 years is 8% per year.

Place the numbers +14/3 -4 -3.95 -13/3 and -4.25 from least to greatest

Answers

-4.25 ,-13/3 ,-4 ,14/3

Hope this helps

1. Solve for x in the following problem.

Answers

Answer:

X=36

Step-by-step explanation:

Tawanna is asked to find the GCF of each term in the expression 2 a b + 8 b

Answers

2b
Hope this helps!!!!;)

Ally collects stickers as a hobby. She gives her sisters of her stickers.
She then gives her cousin of the remainder.
Ally says that she has 3/5 of the stickers in the end because 1-1/5-1/5=3/5
• Explain why Ally's reasoning is incorrect.
What should the correct answer be?
Explain how you arrived at your answer.

Answers

Answer:

[tex]\frac{16}{25}[/tex]

Step-by-step explanation:

Ally gives her sister = 1/5 stickers

Ally gives her cousin = 1/5 of the remainder stickers

Assume Number of sticker Ali has = 1

Remainder after giving stickers to her sister = 1 - 1/5 = 4/5

Number of stickers she gave her sister = [tex]\frac{1}{5}\times\frac{4}{5}[/tex]

         =[tex]\frac{4}{25}[/tex]

Sticker she has = [tex]1-\frac{1}{5}-\frac{4}{25}[/tex]

=[tex]\frac{25-5-4}{25}[/tex]

=[tex]\frac{16}{25}[/tex]

Sticker left with Ally is equal to [tex]\frac{16}{25}[/tex].

Samuel exercises everyday. She spends 40% of his exercise on the treadmill. If he uses the treadmill 40 minutes each day, how many minutes does he exercise each day?

Answers

Samuel exercises for 100 minutes each day. Or in other words, 1 hour and 40 minutes.

which solution makes the equation true

6d=8(12-6)​

Answers

Answer:

d = 8

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right  

Equality Properties

Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtraction Property of Equality

Step-by-step explanation:

Step 1: Define

6d = 8(12 - 6)

Step 2: Solve for d

(Parenthesis) Subtract:                                                                                     6d = 8(6)Multiply:                                                                                                             6d = 48[Division Property of Equality] Divide 6 on both sides:                                  d = 8

In a probability experiment Eric flipped a coin 30 times the coin landed on heads 20 times what is the ratio of heads to tails in the experiment

Answers

Answer:

it would 600

Step-by-step explanation:

Answer:

It's 2/1 i promise !!

Step-by-step explanation:

First, find the number of times the coin landed on tails.

30 - 20 = 10

The ratio of heads to tails can be expressed in three ways.

1. 20 to 10

2. 20:10

3. 20/10

The fraction 20/10 can be simplified to . 2/1

1. Simplify the following expression. *
11/15 - 1/6

Answers

11/15= 11/15 - 1/6= 1/6
The answer is to this question is 17\30
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