Sonia estimates that about 1 out of every 10 people is left-handed at her school. I f there are 160 students in her school, what is a reasonable number of left-handed students at Sonia's school?

Answer:

A

Step-by-step explanation:

Cuando se tienen dos exponencial una dentro y otra fuera del paréntesis se suman debido a esto la A es la única que cumple con la ecuación

Answer:

Step-by-step explanation:

the answer would be -9 only because the sum is all postive instead of negative

Answer:

4 9/10

Step-by-step explanation:

7/10×7=49/10= 4 9/10

Step-by-step explanation:

1. 48 decide by 16 = 3 per min

2. Decide by 7 you will get 5:2

3. 24 per hour so 3 hours is 3 times 24 which is 72

4. 5cm per hour

5. 175:326.

6.1080 decide by 9 you get 120

120 times 13 is 15607.

7. 2520 decide by 9 is 280

Sara got 560 while Hina got 19608.

8. Ali is the fastest. He can fold 8 in a minute

9. I dont understand your question

10. A is 3

Answer:

1/4

Step-by-step explanation:

Answer:6/20

Step-by-step explanation:

Answer:

38

Step-by-step explanation:

It is 4,10,6,6,6,6 feet so add it up and it is 38

Answer:

A and C

Step-by-step explanation:

2(6x-4+5x)

12x-8+10x

22x-8 / 2 = 11x-4

option A and C is answer

the given expression is

the given expression is 2(6x - 4 + 5x)

the given expression is 2(6x - 4 + 5x) now multiple it

the given expression is 2(6x - 4 + 5x) now multiple it 12x - 8 + 10x

the given expression is 2(6x - 4 + 5x) now multiple it 12x - 8 + 10x22x -8

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

Explanation:

We replace every copy of x with 5. Then we apply the order of operations PEMDAS to simplify.

f(x) = -2x+1

f(5) = -2(5)+1 ..... x replaced with 5

f(5) = -10+1

f(5) = -9

Answer:

x+y=900

x-y=300

2x=1200

x=600

Answer:

He needs to sell at least 12 boxes.

Answer:

MN=25

Step-by-step explanation:

mn=(ab+cd)/2 --> mn=(40+10)/2 --> mn=50/2 --> mn =25

(this is half an answer and this is what i could get)

Answer:

gvhgfcbvhgfc

Step-by-step explanation:

yee

Answer:

what u wanna do  we could zoom

Step-by-step explanation:

Answer:

11

Step-by-step explanation:

is very easy and nohard

Answer:

History of mathematics

Several civilizations — in China, India, Egypt, Central America and Mesopotamia — contributed to mathematics as we know it today. The Sumerians were the first people to develop a counting system. Mathematicians developed arithmetic, which includes basic operations, multiplication, fractions and square roots. The Sumerians’ system passed through the Akkadian Empire to the Babylonians around 300 B.C. Six hundred years later, in America, the Mayans developed elaborate calendar systems and were skilled astronomers. About this time, the concept of zero was developed.

Step-by-step explanation:which includes basic operations, multiplication, fractions and square roots. The Sumerians’ system passed through the Akkadian Empire to the Babylonians around 300 B.C. Six hundred years later, in America, the Mayans developed elaborate calendar systems and were skilled astronomers. About this time, the concept of zero was developed.

Answer:

b

Step-by-step explanation:

Answer:

[tex] y = \dfrac{w}{h - 5t^2} [/tex]

Step-by-step explanation:

w = yh − 5yt^2

There is a y in each term on the right side. We factor it out.

w = y(h - 5t^2)

Now we divide both sides by h - 5t^2 to isolate y.

[tex] \dfrac{w}{h - 5t^2} = y [/tex]

[tex] y = \dfrac{w}{h - 5t^2} [/tex]

Answer:

4.41

Step-by-step explanation:

a(3.15)

(1.4)(3.15)

1.4 x 3.15 = 4.41

Answer:

x = 1 and x = -3

Step-by-step explanation:

We need to solve the given equation.

[tex]3+x=x^2+3x[/tex]

Taking all terms together,

[tex]x^2+3x-3-x=0\\\\x^2+2x-3=0\\\\x^2+3x-x-3=0\\\\x(x+3)-1(x+3)=0\\\\(x-1)(x+3)=0\\\\x=1\ and\ x=-3[/tex]

So, the solution of the above equation is x = 1 and x = -3.

Answer:

[tex]4=(x+1)^{2}[/tex]

x= -1 ±2

Khan Academy

A ratio shows us the number of times a number contains another number. The width of the frame after enlargement is 5 inches.

A ratio shows us the number of times a number contains another number.

Given that the frame is 1 inch wide and 4 inches tall. Now, if the frame is enlarged, then the ratio of the corresponding sides will be equal.

Further, given that height after enlargement is 20 inches. Therefore, if the ratio of the height of the before enlargement and after enlargement is taken, then it will be,

Ratio = After Enlargement/ Before Enlargement

Ratio = 20 inches / 4 inches

Ratio = 5

Now, if we use the ratio to find the width of the frame after enlargement, then the frame width will be,

Ratio = After Enlargement/ Before Enlargement

5 = Width after Enlargement/ Width before Enlargement

5 = Width after Enlargement/ 1 inche

Width after Enlargement = 5 inches

Hence, the width of the frame after enlargement is 5 inches.

Learn more about Ratios:

https://brainly.com/question/1504221

#SPJ2

Answer:

answer is provided below

Step-by-step explanation:

5 ----> constant

+ ------> operator

2 ------> coefficient

2x ------> variable term

x --------> variable

Hope the above solution helps

Answer:

-33

Step-by-step explanation:

2/3(x+6)=18

Multiply by 3/2 on each side

3/2 *2/3(x+6)= -18*3/2

x+6=-27

subtract from each side

x+6-6=-27-6

x=-33

Answer:

B. -33

Step-by-step explanation:

Answer:

22

Step-by-step explanation:

Answer:

The answer is B and C

Step-by-step explanation:

Answer:

g(f(5)) = 6

Step-by-step explanation:

Obtain f(5) from the graph of y = f(x)

Locate x = 5 on the x- axis, go vertically up to meet the graph at (5, 4 )

Now evaluate g(4) from the graph of y = g(x)

Locate x = 4 0n the x- axis, go vertically up to meet the graph at (4, 6 )

Then the value of g(f(5)) = 6

Answer:

i not sure sorry ..........

Answer:

f(x)=-3/2x+1

Step-by-step explanation:

y=mx+b

m=slope

b=y intercept

y=f(x)