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?

Answers

Answer 1

Answer:

16

Step-by-step explanation:

So turn it into a percent, 1/10 is .1 or 10% so .1 x 160 = 16

Or you can divide 160/10 = 16, either way, there would be 16 left-handed students out of 160.


Related Questions

SOMEONE HELPPPPPPP please.

Answers

Answer:

150ft²

Step-by-step explanation:

Front facing rectangle: lw=6*5=30

Back facing rectangle: lw=6*5=30

Top facing rectangle: lw=2*6=12

Bottom facing triangle: lw=10*6=60

Trapezoid: (h(a+b))/2=(3(2+10))/2=3(12)/2=36/2=18

Total surface area = 30+30+12+60+18=150ft²

7 more than twice z ..............................................................

Answers

Answer:

2z+7

Step-by-step explanation:

2*z+7

2z+7

Write the equation 3x+2y=8 in general form. SHOW YOUR WORK PLEASE

Answers

Answer:

3x+2y-8=0

Step-by-step explanation:

The equation 3x+2y=8 in general form is 3x + 2y - 8 = 0 respectively.

What is a numerical expression?

A numerical expression is an algebraic information stated in the form of numbers and variables that are unknown. Information can is used to generate numerical expressions.

We are given that  the equation 3x+2y=8.

The equation of straight line is written as y = mx + c

3x+2y=8.

2y = 8 - 3x

y = 8/2 - 3/2x

y = 4 - 3x/2

Hence, the general form is 3x + 2y - 8 = 0.

To know more about an expression follow;

brainly.com/question/19876186

#SPJ2

As an estimate we are told 5miles is 8km convert 68 km to miles ?

Answers

Answer:

42.5miles

Step-by-step explanation:

68÷8= 8.5

8.5×5= 42.5 miles

we use the numbers given to us because we are finding the estimate.

our estimate is correct because 68km= 42.3 miles

Answer:

The exact answer is 42.25 miles

Step-by-step explanation:

divide 68 by 8 and get 8.5. Multiply 8.5 by the 5 so you get 42.5. Which is a super close estimate.

A rectangular park is 5/6 miles wide and 1. 5/6 miles long what is the area of the park enter your anwer as a mixed number in simplest form

Answers

Answer: 1 19/36

multiply 5/6 by 1 5/6


3 pencils cost $0.45. What is the cost per pencil?

Answers

Answer:

$0.15

Step-by-step explanation:

You have

3 pencils: $0.45

divide both numbers by 3

3 pencils / 3: $0.45 / 3

1 pencil: $0.15

Answer:

0.15

Step-by-step explanation:

3÷.45=.15

HELPPP IT'S DUE IN 30 MINUTES I"LL MARK YOU THE BRAINLIEST!!!

You are a wedding planner who is filling small pouches with biodegradable confetti for a wedding reception. You want to fill each pouch with of a cup of confetti, and you have a total of 210 fluid ounces of confetti. You need enough pouches for 120 guests.

Which equation can you use to determine whether you have enough pouches for 120 guests?

number of pouches = 210 +
number of pouches = 210 –
number of pouches = 210 × 8 ×
number of pouches = 210 ÷ 8 ×
number of pouches = 210 ÷ 8 ÷

Answers

Answer:

you have 26 cups so i think its the 4th one or the 5th one

Step-by-step explanation:

Hope this helps!

200/160 as a percentage (200 over 160)

Answers

Answer:

80%

Step-by-step explanation:

Please brainlist me

Answer:

80%

Step-by-step explanation:

160 ÷ 200 =  0.8

0.8 x 100 = 80

add percentage sign 80%

Hope that helps

50,60,72 find the 8th term airthmetic and geometric sequence

Answers

Answer:

8th term is 179.15904

Step-by-step explanation:

The sequence is geometric with a common ration = 6/5

r = 60/50 = 72/60 = 6/5

Use the formula

[tex]a_{n} = ar^{n - 1}[/tex]

In your case a = 50, r = 6/5 and n = 8

[tex]a_{8} = 50(6/5)^{8 - 1} \\ = 50(6/5)^{7} \\ = 50(279936/78125)\\ = 179.15904[/tex]

A spinner is divided into sections of equal size, some of which are red, some are blue, and the remaining are green. The probability of the arrow landing on a red section is 40%. The probability of the arrow landing on a blue section is 25%.

What is the probability of the arrow landing on a green section?

Group of answer choices

35%

65%

25%

50%

Answers

Answer:

35%

Step-by-step explanation:

X=the probability of the arrow landing on a green section.

Equation:

40+25+ x = 100

65 +x = 100

(65-65) + x = 100-65

X= 35

Hope this helps!

y = -63 y = 8x + 6
Use Substitution to solve​

Answers

9514 1404 393

Answer:

  (x, y) = (-8.625, -63)

Step-by-step explanation:

Substitute for y.

  -63 = 8x +6

  -69 = 8x . . . . . subtract 6

  -69/8 = x = -8.625

The solution is (x, y) = (-8.625, -63).

The scatter plot shows the weight of a child each month.
The birth weight of the child is ?
kilograms. The child gains an average of
? per month

The first ? options
-0
-3
-3.5

The second ? options
-0.5
-1
-1.5

Answers

Answer:

3.5

0.5

Step-by-step explanation:

................

A biologist estimates that the human body contains 90 pounds of water for every 100 pounds of body weight. At the rate estimate the number of pounds of water in a child who weighs 80 pounds

Answers

Answer:

72 lb

Step-by-step explanation:

Write and solve an equation of ratios:

80 pounds             x

----------------- = ------------------

100 pounds      90 pounds

Cross multiplying, we get (100 pounds)x = 7200, or x = 72 pounds.

The 80 pound child's weight includes 72 pounds of water.

17 POINTS! I will also give Brainliest!
Find the perimeter of the coordinates below:
Figure PQRST is shown. P is at negative 2, 11. Q is at negative 4, 5. R is at 2, 0. S is at 1, 7. T is at 8, 7.



37 units


38 units


39 units


40 units

Answers

Answer:

c 39

Step-by-step explanation:

Parameter is the sum of the lengths of all sides of a polygon. The sides of the polygon are PT, TS, SR, RQ, and QP. To get the length of a side, we use the distance formula: Each vertex in the polygon has its corresponding points:\

So to get the length of side PT, we use the distance formula and the vertices of side PT:

The length of PT is

The same procedure is done for the other 4 sides and the following are the answers:

And by adding all the sides, you get the perimeter:

By rounding off, the answer is 39 units.

have a nice day

f(x) = x2 – x + 11
g(x) = -x – 4
Find: (gof)(x)

Answers

Answer:

g(f(x)) = -x^2 + x - 15

Step-by-step explanation:

g(f(x^2 - x + 11) = -1 * (x^2 - x + 11) - 4 = -x^2 + x - 11 - 4 = -x^2 + x - 15

(6b+9)–(6b+5)

.

.

.

.

.

.

.

.

Answers

Answer:

4

Step-by-step explanation:

distribute the negative to remove the parenthesis
6b+9-6b-5
combine like terms
6b-6b=0
9-5=4
0+4=4

answer: 4

What is the least common multiple of 12, 18, and 45?

Answers

Answer:

180

Step-by-step explanation:

Hi could you help pls it is due tonight at 11:59 and its 10:47

Answers

your answer is: y = 2/5x

Answer:

The slope is 1 or 1/1

Step-by-step explanation:

Solve it by using rise over run.

Hope this helps! :)

Directions: Read the instructions for this self-checked activity. Type in your response to each question, and check your answers. At the end of the activity, write a brief evaluation of your work

Activity: You will use the GeoGebra geometry tool to explore how a line parallel to one side of a triangle divides the other two sides of the triangle. Go to
segments parallel to sides of a triangle e, and complete each step below. If you need help, follow these instructions for using GeoGebra.

Question 1: Check the box labeled Show Segment Parallel to BC. Notice that DE intersects two sides of AABC creating a smaller triangle. AADE. How is
AADE related to AABC? How do you know?

Answers

Angle D and angle B are congruent because they are corresponding angles. Angle E and C are also congruent because they are corresponding angles.

This is taking forever to find out

Answers

Answer:

What is

Step-by-step explanation:

6 miles, 9 miles, then 13 miles

help help help its baby work

Answers

Answer:

the volume of the larger cube is 512

Step-by-step explanation:

we plug in the value of the side into the equation

so we get

8 x 8 x 8= 512

hope this helps <3

Virginia needed some batteries for her flashlights. She bought 4 batteries for $6.80. At that rate, how much would 10 batteries cost?

Answers

Answer:

$17

Step-by-step explanation:

First find the cost of 1 battery.

$6.80 ÷ 4 = $1.70

Then multiply the cost of one battery by 10.

$1.70 x 10 = $17

Answer:

10 batteries would cost $17

What is the total cost of a dress if the regular price is $65
and the sales tax is 3.25%?

Answers

Answer:

$67.11

Step-by-step explanation:

3.25/100=0.0325

65*0.0325=2.1125=2.11

65+2.11=67.11

Solve each equation. Leave the answer as an improper fraction. 16x^2 = 49​

Answers

Answer:

7/4

Step-by-step explanation:

Answer:

The Answer would be 7/4 as an Improper fraction

Step-by-step explanation:

find x and y!!!!!!!!!!

Answers

Answer:

x = 8

y = 8√3

Step-by-step explanation:

sin(30) = 1/2

cos(30) = √3/2

They are rule!!!

sin = opposite / hypotenuse


sin 30° = x / 16

16 sin 30° = x

x = 16 sin 30°

x = 8



sin 60° = y / 16

16 sin 60° = y

y = 16 sin 60°

y = 13.85640....

y = 13.9 (nearest tenth)

find the value of (a+b)^2 if a^2+b^2=10 and ab=3

Answers

Answer:

(a+b)^2 if a©+2b

Step-by-step explanation:

i not sure

Answer:

16

Step-by-step explanation:

.

PLEASEE HELP I NEED HELP PROBLEM
Melinda takes readings of the depth of water in a
pond every day for 1 week. Here are her results in
meters:
6.5, 6.8, 7.2, 6.8, 6.6, 6.3, 6.4
What are the mean, median, and mode water levels
for the week, rounded to the nearest tenth?
Answer with supporting work:

Answers

Answer:

a) The Mean of the water levels for the week (μ) = 6.657

b) The Median of the water levels for the week = 6.6

c) Mode = 6.8

Step-by-step explanation:

Step(i):-

Given that the data per one week

6.5,  6.8 , 7.2  ,6.8  ,6.6  ,6.3 , 6.4

we have to find the mean of the given data

Solution:-

Mean = ∑x /n

[tex]Mean = \frac{6.5+6.8+7.2+6.8+6.6+6.3+6.4}{7}[/tex]

Mean = [tex]\frac{46.6}{7}[/tex]

Mean(μ) = 6.657

The Mean of the water levels for the week (μ) = 6.657

Step(ii):-

Given that the data per one week

6.5,  6.8 , 7.2  ,6.8  ,6.6  ,6.3 , 6.4

we have to find the Median of the given data

A median is the center value of a  given  data when arranged in an order

6.3  6.4  6.5 6.6  6.8  6.8 7.2

The Median = middle of the given data

The Median = 6.6

Step(iii):-

Given that the data per one week

6.5,  6.8 , 7.2  ,6.8  ,6.6  ,6.3 , 6.4

we have to find the Mode of the given data

Mode = Value repeated the most number of times

The value 6.8 repeated two times

Mode = 6.8

13) What is the surface area of the figure below?
6 ft
3 ft
3 ft

Answers

Answer:

54

Step-by-step explanation:

multiply all of them

Answer:

54

Step-by-step explanation:

I have a big brain.... trust me.

simple math true and false. not that hard. 11th grade math though

Answers

Answer:

True

Step-by-step explanation:

If my eyes don’t fail me, it‘s true.

Sorry in advance if it’s wrong :<

Answer: True

Step-by-step explanation:

10 of 14
A car travels 37 km in 22 minutes.
What is its average speed in km/h?
Give your answer rounded to 1 decimal place.
km/h

Answers

100.9 kilometers per hour
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