Answer:
59%
Step-by-step explanation:
Which continent is estimated to have more than 5.31 billion people by 2050? To solve, find what percent 5.31 billion is of 9 billion. Write a ratio of part to whole. ? 100= 5.31 9Solve for ?. Change your answer for ? 100to a decimal and then to a percent.________ %
This is calculated as:
5.31 billion/9 billion × 100
= 0.59 × 100
= 59%
What is the distance between the points (-2, 4) and (7, -5)?
#3 A keyboarding instructor at a community college collected data comparing a student's age and their typing speed. The equation for the line of best fit is given as y = -1.4x + 117.8, where x is the "age in years" and y is the "typing speed. If you are 25 years of age, what is your typing speed?
Answer:
82.8
Step-by-step explanation:
In the above question, we are given the following information:
The equation for the line of best fit is given as y = -1.4x + 117.8, where
x is the "age in years"
y is the "typing speed. If you are 25 years of age, what is your typing speed?
This is calculated as:
y = -1.4x + 117.8
x = 25 years
y = -1.4(25) + 117.8
y = -35 + 117.8
y = 82.8
Hence, If you are 25 years of age, what is your typing speed is 82.8
HEPPPPPPPPPPPPPP MEEEEEEEEE
Find the area of the isosceles triangle. please help thanks
Answer:
1080 m^2 Don't submit m^2 in your answer.
Step-by-step explanation:
Givens
The catch is to find h
To do that, use a^2 + b^2 = c^2
a b and c are in the same 1/2 triangle.
a = 48/2 = 24 m
b = h = ?
c = 51 meters
Solution
a^2 + b^2 = 51^2 Substitute for b^2 = h^2
24^2 + h^2 = 51^2 Expand 24^2 and 51^2
576 + h^2 = 2601 Subtract 576 from both sides
h^2 = 2601 - 576
h^2 = 2025 Take the square root of both sides
h = 45
Area
Area = 1/2 b * h
Area = 1/2 48 * 45
Area = 1080
Remark
Notice that to find h you only use 1/2 of 48 because that is the base of the right triangle.
To find the area, you need to use all of 48 because 48 is the full length of the base.
When exercising, the maximum heart rate (r ) in beats per minute is modeled by the equation shown in the box, where (a ) represents the age of the person in years. r = 220 - a If Sanchez is 34 years old, what is his maximum heart rate?
Answer:
186 beats per minute
Step-by-step explanation:
The maximum heart rate (r ) in beats per minute is modeled by the equation :
r = 220 - a ...(1)
Where
a is age of the person in years
If Sanchez age is, a = 34 years
Put a = 34 in equation (1)
r = 220 - 34
= 186 beats per minute
Hence, the maximum heart rate is 186 beats per minute.
y - 4 × x - 6 is?
Answer:
y-4x-6
Step-by-step explanation:
I'm not 100% sure but I think this is correct!
Answer:
y - 4x - 6
Step-by-step explanation:
y - 4 • x - 6 = y - 4x - 6
When Ellen’s family had completed 70% of a trip, they had traveled 35 miles. How far is the trip overall? (I need a number sentence/A complete sentence)
Answer:
If Ellen traveled 35 miles and this was 70% of her trip, then 100% of her trip would be 50 miles.
Step-by-step explanation:
You can solve this by setting up a proportion. 35/70 = ?/100. To solve this, cross-multiply 35 and 100 to get 3,500. Divide this by 70 and get 50. This means that 35/70 = 50/100.
Can someone help me with this 7th-grade math problem it is ratios If it is correct I will give brainliest so make sure it is correct
Answer:
B
Step-by-step explanation:
denominators are related
40 x 2.5=100
48 x 2.5=120
so they are the same
hope this helps
take care
Find the slope of the line going through the points (0, -7) and (8, 1).
Answer:
8,1
Step-by-step explanation:
maybe i think this will help you
please help!!! ASAP
Answer:D
Step-by-step explanation:
It's on a computer
Answer:
simulation
Step-by-step explanation:
im in 8th grade
$12,000 at 2.2% for 5 years.
what’s the interest?
Answer:
264.
Step-by-step explanation:
12,000X2.2%=264.
Whose the best spiderman?
A. Tobey
B. Tobey
Or
C. Tobey?
Answer:
tobey duh
Step-by-step explanation:
Your father gave you $8.82 to buy a present. This covered 7/9 of the cost. How much did the present
cost?
Answer:
$6.86
Step-by-step explanation:
Answer:
$11.34
Step-by-step explanation:
8.82 x 9/7 = 11.34
This means 8.82 is 7/9 of 11.34
The present costs 11.34 dollars
Enter an inequality that represents the description, and then solve.
Dave has $11 to spend on an $8 book and two birthday cards (c) for his friends. How much can he spend
on each card if he buys the same card for each friend?
Answer:
$6
Step-by-step explanation:
which unite rate is the lowest price per ounce?
choice A: 25 ounces of potato chips for $3.49
choice B: 40 ounces of petato chips for $4.79
I need the answer to this, with the explanation
Investors buy a studio apartment for $140,000. Of this amount, they have a down payment of $21,000. Their down payment is what percent of the purchase price? What percent of the purchase price would a $7,000 down payment be?
Answer:
a. Down payment of $21,000
= 21,000 / 140,000
= 0.15
= 15%
b. Down payment of $7,000
= 7,000/ 140,000
= 0.05
= 5%
CAN ANYONE FIND THE SLOPE OF THIS LINE WITHIN THE NEXT COUPLE OF MINUTES PLSS
Answer:
Hello.
Slope= y=-0.5x + 1.5
Step-by-step explanation:
Solve for x: 7(9 + x) = 84
x= 3
x= 21
x=16
x=64
PLEASE HURRY WILL GIVE BRAINLIEST!!!
Answer:
my answer is 2 . 3 I think
Identify an equation in point-slope form for the line parallel to y =-2/3x+8 that
passes through (4,-5).
19. (3,5), (2,-2)
write an equation in slope-intercept form for the line that passes through each pair of points
Answer:
y=7x−16 the answer ;)
The scatter plot shows the amount of sleep Aria got the night before a test and her test scores. Which is the best prediction for Aria’s grade when she sleeps for 10 hours
A.75
B.83
C.92
D.99
Answer:
its d gee
Step-by-step explanation:
good luck my firesn
Solve the inequality.
4(x +3) -72x+3(x + 1)
O A. X<5
O B. X> 3
C.
no solution
D.
all real numbers
Pls help stuck on this question. Point-slope line
(11 points) pls show work
Answer:
Hope this can help u ;)
Step-by-step explanation:
Help please!
Bart had an income of $38,250 last year. If the inflation rate is 4.5%, what is his purchasing power?
A. $33,614.85
B. $34,543.75
C. $34,998.15
D. $36,528.75
Answer: D) $36,528.75
=======================================================
Explanation:
Positive inflation eats away at the purchasing power of money.
If inflation is 4.5%, then the purchasing power goes down by 4.5% meaning his purchasing power is 100% - 4.5% = 95.5% of what it used to be.
95.5% of $38,250 = 0.955*38250 = 36,528.75
So his purchasing power is $36,528.75
The purchasing power of Bart by the income of last year is option D. $36,528.75.
What is Inflation?Inflation can simply be defined as the increase in the rate of the prices over a period of time. In other words, inflation describes how much more expensive has a commodity or service becomes in a period of time.
It is clear that, inflation decreases the purchasing power of money.
Given that, the inflation rate is 4.5%.
Also, Bart had an income of $38,250 last year.
Purchasing power will get decreased by 4.5%.
Purchasing power = $38,250 - ($38,250 × 4.5%)
= $38,250 - (1721.25)
= $36,528.75
Hence the purchasing power of Bart is $36,528.75.
To learn more about Inflation, click on the link given below :
https://brainly.com/question/1869740
#SPJ6
What is the equation of the line that passes through the point (2,-5) and is perpendicular to the line y = -2x + 1? A y = 2x - 1 B y = -x-4 C y = { x - 4 D y = į x-6
Answer:
sorry
Step-by-step explanation:
im so sorry
help pleasee look the picture
Answer:
-19
Step-by-step explanation:
3^2= 9
(9-16)(4)= -28
-28+9= -19
Answer:
-19
Step-by-step explanation:
At the equation together then
Multiply 9-7 x 4
Calculate 9-28
That equals -19 so -19 is the answer
ASAP PLZZ Helllllpppp!!!! Figure N is the result of a transformation on Figure M. Which transformation would accomplish this?
Directions in the first screenshot.
Answer:
b
Step-by-step explanation:
what is the ratio for the volumes of two similar pyramids, given that the ratio of thier edge lengths is 8:3
Answer:
512:27
Step-by-step explanation:
We just cube the edge length ratio since a pyramid is a 3-dimensional figure and volume is 3-dimensional:
8:3 -> 8^3:3^3 -> 512:27
Therefore, the correct answer is 512:27
Answer:
512:27 the answers is that one.
please help me I have no idea
Answer:
where a is in the equation put 6.05 and where b is put 3.611
Step-by-step explanation:
-6.05 + (-3.611)
-6.05 - 3.611
-9.661
Answer:
-9.661
Step-by-step explanation:
First of you want to plug in a and b making the equation
-6.05 + (-3.611)
or
-6.05 - 3.611
*I hope your teacher will allow you to use a calculator because of the decimals
Then you will add -6.05 + (-3.611) together
to get a negative answer of...
-9.661