Answer:
7 penguins are in the water.
21 penguins in all.
Step-by-step explanation:
14 penguins on the rocks.
Half of them equals 7 are in the water swimming.
7 + 14 = 21
7 penguins are in the water.
21 penguins in all.
The number of penguins in water = 7 penguins
The total number of penguins = 21 penguins
Word problems in mathematics involve a crucial understanding of solving real-life cases with the use of arithmetic operations.
From the information given:
There are 14 penguins on the rock.Half as many are swimming implies that: 7 of them are swimmingThus, the number of penguins in water = 7 penguins
The total number of penguins overall = penguins in water + penguins on the rock
The total number of penguins overall = 7 + 14
The total number of penguins overall = 21 penguins
Learn more about word problems here:
https://brainly.com/question/25693822
what is the x-intercept of y=2x-1
Answer::::::::::
(1/2,0)
hii please help i’ll give brainliest!!
Answer:
first answer
Step-by-step explanation:
yeaaaaaaaaaa
Neck size, in inches, and number of teeth of 18 randomly selected puppies are compared. Which significance test should be used to see if neck size and number of teeth have a linear relationship? Assume all test conditions are met.
a
Two-sample z-test
b
Two-sample t-test
c
Two-proportion z-test
d
t-test for slope of regression line
e
One-proportion z-test
Answer:
D
Step-by-step explanation:
its just obvious
go bucs
help help help help help help help help help help help help
Answer: 25
Step-by-step explanation:
PLEASE HELP!! find the value of c
Step-by-step explanation:
step 1. so you want to convert a quadratic (ax^2 + bx + c) into a perfect square
step 2. therefore c is half of b then squared
step 3. (26/2)^2 = 169
step 4. (-22/2)^2 = 121
step 5. (-13/2)^2 = (-6.5)^2 = 169/4 = 42.25.
Of the tangent is 15/20 what’s the sine of the angle
Answer:
25
Step-by-step explanation:
Team A and team B play in a competition Team A has 12 more points than team B Team A has twice as many points as team B How many points does each team have
Answer:
A = 24 points
B = 12 Points
Step-by-step explanation:
Team A and team B play in a competition
Team A has 12 more points than team B
A = B + 12
Team A has twice as many points as team B
A = 2B
We substitute
2B = B + 12
2B - B = 12
B = 12 points
Solving for A
A = 2B
A = 2 × 12
A = 24 points
find the value of angle ABC A(3x)B(x+4) C 110
A 30.5 degrees
B 60 degrees
C 80.5 degrees
D 121.5 degrees
Calculate all of this please and you will get the brainlist
Answer:
4. 118 kg
w = 450 j , d = 3.8 m
w = mgh ⇒mg = w / h ⇒m = 450/3.8 = 118 kg
5. 9806.65 Joules
6. 25 J
What is the distance between the points (7, 8) and (-8, 0) on a coordinate grid?
Answer:
17 units
Step-by-step explanation:
Moving from (-8, 0) to (7, 8), we see x changing by 15 units from -8 to 7 and y changing by 8 units from 0 to 8.
Regard 15 units as the horizontal leg of a right triangle and 8 units as the vertical leg. We use the Pythagorean Theorem to determine the length of the hypotenuse of this right triangle and interpret the result as the distance between the points:
d = √(15² + 8²) = √289 = 17
The distance between the given points is 17 units.
Andrew buys 4 books for the same price, and also a video for $18. His total bill was $110. What was the cost of a book
In Circle F, determine the value(s) of x.
Answer:
since inscribed angle is half of the central angle
x²+22=2(x²+3)
x²+22=2x²+6
22-6=2x²-x²
16=x²
x=√16=±4
determine the value(s) of x=±4
If the number of hours you hours you work is proportional to the amount of money you earn per hour, which og tye following statements is true?
Answer:
it should be a
Step-by-step explanation:
if you work for $10 an hour, and work for 2 hours, you make $20 but if you double the hours worked, so 4 hours, you make $40, which is double the hours, and double the money
finish this anyone? number 8
Answer:
3) reflexive property
4) Side-Angle-Side
Step-by-step explanation:
The bids in an online auction are represented by the arithmetic sequence shown below. Write an explicit formula to represent the bids as an arithmetic sequence. What is the bid?
207,216,225,234
Answer:
aₙ = 207+9*(n-1)
Step-by-step explanation:
a1 = 207+9*(1-1) = 207
a2 = 207+9*(2-1) = 216
a3 = 207+9*(3-1) = 225
....
aₙ = 207+9*(n-1)
the price of coffee beans, b, fluctuates by 14% in both directions over a 4-month period. Which of the following expressions does not represent the possible cost of the coffee beans?
a. b - 0.86b
b. 1.14b
c. 0.86b
d. b + 0.14b
Answer:
I don't know but I need points, look it up on go0gle
I’m posting too many
Solve each equation 51/2=d +1/4 what is d?
Triangle ABC is similar to triangle DEF. What is the value of x in centimeters?
A. 17 cm
B. 16.5 cm
C. 15.4 cm
D. 18 cm
Answer:Triangle ABC is similar to triangle DEF. What is the value of x in centimeters?
Step-by-step explanation: it will be B
David has earned the following test
grades: 89, 96, 99, 85. What is the
grade David has to earn on his 5th test to maintain a test
average of 90?
Answer:
81
Step-by-step explanation:
Required average= 90
let the required grade be x
Average= Sum of n numbers
90= 89+96+99+85+x divide by 5
450= 369+x
x = 450-369
x=81
Write the slope intercept equation for this table
Answer:
y = 2x -4
Step-by-step explanation:
y2 - y1 / x2 - x1
-4 - (-6)/ 0 - (-1)
= 2
y = mx + b
y = -2x + b
-4 = -2(0) + b
-4 = 0 + b
-4 = b
So the equation is y = 2x -4
When Beth buys 4 chocolates, she gets 8 free game tokens. Write the equation for the relationship between x and y. *
Answer:
y= 2x
y= x+4
Step-by-step explanation:
I am confused here.
since one data is given, the equation could be any of the two.
PLEASE HELP ME PLEASE PLEASE PLEASE
Answer:
Step-by-step explanation:
l/100 km means liters per 100 Kilometre. How many liters a car need for traveling 100 km.
Km/l means liter per km
Please help Lia brought 21 shirts and plants. Her total was $357. Pants cost $25 each, and shirts cost $14.50 each. How many of each item did she buy? Show your work
Will give points!!!
Answer:
she brought 21 shirts and 2 pants
Step-by-step explanation:
shirts
21× 14.50 = $ 304.5
357- 304.5 = $ 52.5
pants
52.5÷ 25 = 2.1
what % of $4 = $1
Please hurry
Answer:
25%
Step-by-step explanation:
The answer is 25%
hope that is right..
WILL GIVE BRAINLIEST
Write a fraction on the blank to make the comparison true .Use the fractions form the box .Explain how you choose your number 3/5>3-4
Answer:
Explained
Step-by-step explanation:
So I'm not sure if you mean by 3/4 or 3-4. But I'm going to assume that its 3-4 because 3/4 is greater than 3/5
3/5 is equal to 0.6 -> you can also find 0.6 by multiplying 3/5 * 2 on both sides which will be 6/10 which is 0.6
and 3-4 is - 1 (which is negative)
since 3/5 is positive and 3-4 is negative. You would know that this is true.
may i get someone who can answer this question. Ruth has 12 feet of ribbon.
She uses 7 feet of it for a craft project and gives 28 inches of it to her sister.
How many inches of ribbon does she have left?
Answer:
2ft 8in
Step-by-step explanation:
Text if you want explanation. Welcome❤
The total surface area of a cube is 294cm^2.
Work out the volume of the cube.
Answer:
343 cm ^3
Step-by-step explanation:
A cube has 6 squares of equal sizes. 294/6 = 49
The area of one square is 49
Since the area is the length squared, the square root of 49 is 7.
Volume of a cube is area times height. 49 x 7 = 343 cm^3
What is the volume of the composite figure? Use 3.14 for π and round the answer to the nearest tenth of a cubic unit.
Answer:
V=1582.56 cubic cm
Step-by-step explanation:
Here’s a picture of it
Answer:
Scientific notation: 2.08×10∧2
Expanded form: 208