Answer:
D.) The average height temperature in Antarctica in January is 15° F below zero
Step-by-step explanation:
Please help please...
first part: put them equal to each other
6x - 25 + 4x = 45 + 3x - 7
10x - 25 = 38 + 3x
7x - 25 = 38
7x = 63
x = 9
second part: plugin
6x - 25 + 4x
6(9) - 25 + 4(9)
54 - 25 + 36
29 + 36
= 65
-- plugging this in one of the equation is enough, since both are the same.
final answer for the second part: 65
Please I really need help
Show workings!
what is the value of 5/6 ÷ 3/4?
Answer:
1 1/9
Step-by-step explanation:
5/6 ÷ 3/4 = ?
5/6 x 4/3
5 x 4
------- = 20/18 = 1 2/18 = 1 1/9
6 x 3
What is 1 2/5 divided by 2 1/3
Answer:
9/14
Step-by-step explanation:
Solve the system using the substitution method.
y=4
x+y=7
Demonstrate how you substituted to write an equation in one variable.
Answer:
x=3
Step-by-step explanation:
x+4=7
x=7-4
x=3
since y=4, we can substitute that value into the second equation. now x+y=7 becomes x+4=7. when we subtract three from both sides, we get that x=3. the ordered pair is (3,4)
The image of RST in the graph shown below is rotated 90°counterclockwise around the origin to form R'S'T'.
Answer:
Please check the explanation.
Step-by-step explanation:
Let suppose we have a point P(x, y) if we rotate our point 90 degrees counterclockwise about the origin, the new coordinates of the image of the point P can be obtained by switching 'x' and 'y' and making 'y' negative.
In other words,
P(x, y) → P'(-y, x)
From the given triangle ΔRST,
The coordinates of the point S is:
S(10, 1)According to the rule, if we have a point S(10, 1), after rotations of 90 degrees counterclockwise about the origin, the new coordinates of the image of the point S(10, 1) will be:
S(10, 1) → S'(-1, 10)
Here,
S'(-1, 10) is the image of the original point or pre-image point S(10, 1).
Therefore, the y-coordinate of the point S' is: 10
Solve the equation for 2.
.
Answer:
x = 5 a/b - 3/b
Step-by-step explanation:
Pls heeelp plsss plsss
consider the line y=-5/4x+4. What is the slope of a line parallel to this line? What is the slope of a line perpendicular to this line?
m = 4/5 for the perpendicular line
m = -5/4 for the parallel line
y = -5/4x + 3
for the line above, m = -5/4
The line parallel to this line would have exactly the same slope m = -5/4
The line perpendicular to this line would have a slope equal the inverse with the opposite sign
m = -5/4
So m = (1/(5/4)) is the slope of the m for the perpendicular line
m = 4/5
A small town in north Texas is in the middle of quite a scandal. It turns out that 15 years ago, three babies
were born within three minutes, and each was sent home randomly with the wrong family. In order to
determine which children are actually related to the parents involved, the blood type of each individual was
analyzed. Use the results shown below to answer the question.
Children
X. A
Y. O
Z. A
Parents
1. The Wheelers/ A and AB
II. The Byers/ AB and O
Ill. The Hendersons/ O and B
Answer:
X is parent 1
z is parent 2
y is parent 3
*30 POINTS* Last month you spent $30 on clothing. This month you spent 140% of what you spent last month. Set up a proportion to model this situation. How much did you spend this month?
You spent $__ this month.
Answer:
42$
Step-by-step explanation:
Flared sides smoothly connect the ramp to the sidewalk. The guidelines say the flared sides must be no more than 5.7 degrees ( ratio of vertical to horizontal). What is the horizontal distance for flared sides with a 4 inch vertical distance?
Answer:
[tex]40\ \text{inches}[/tex]
Step-by-step explanation:
[tex]\theta[/tex] = Angle = [tex]5.7^{\circ}[/tex]
Let the vertical distance be is [tex]y=4\ \text{inches}[/tex]
horizontal distance be [tex]x[/tex]
So, slope is the tangent of the angle between the vertical and horizontal
[tex]\dfrac{y}{x}=\tan\theta\\\Rightarrow \tan5.7^{\circ}=\dfrac{4}{x}\\\Rightarrow x=\dfrac{4}{\tan5.7^{\circ}}\\\Rightarrow x=40.07\approx 40\ \text{inches}[/tex]
The horizontal distance for flared sides is [tex]40\ \text{inches}[/tex].
The horizontal distance for flared sides with a 4 inch vertical distance is 40.1 inches
Represent the horizontal distance with h, and the vertical distance with v.
The ratio of the vertical to the horizontal distance is given as: 5.7 degrees.
This means that:
[tex]\tan(5.7) = \frac{v}{h}[/tex]
Make h the subject
[tex]h = \frac{v}{\tan(5.7)}[/tex]
The vertical distance is given as 4 inches.
So, we have:
[tex]h = \frac{4}{\tan(5.7)}[/tex]
Evaluate tan(5.7)
[tex]h = \frac{4}{0.0998}[/tex]
Divide
[tex]h = 40.1[/tex]
Hence, the horizontal distance is 40.1 inches
Read more about vertical and horizontal distances at:
https://brainly.com/question/11956731
PLEASE ANSWER ALL QUESTIONS. PLEASE SHOW FULL SOLUTIONS. I WILL BE GIVING BRAINLIEST TO THE PERSON I THINK HAS THE BEST ANSWER. THANK YOU AND GOD BLESS.
I NEED A NICE DETAILED ANSWERED WITH A DETAILED EXPLAINATION!!!!!
9514 1404 393
Answer:
1) see below
2) 2.5 inches per day
3) the seed was planted below ground level
4) h = 2.5d -3
Step-by-step explanation:
1) We note that the seedling grew 12-7 = 5 inches in the 2 days between day 4 and day 6. This lets us fill in the numbers for even days by adding or subtracting 5 inches:
day 8 will be 5 inches more than day 6, 17 inches.
day 2 will be 5 inches less than day 4, 2 inches.
day 0 will be 5 inches less than that, -3 inches.
The value for day 3 will be halfway between day 2 and day 4, so will be (2+7)/2 = 4.5 inches.
See the attachment for the complete table.
__
2) In one day, the plant grows in/day = 5/2 = 2.5 inches.
__
3) If the plant grows at the steady rate of 5 inches in 2 days, it must have been planted 3 inches below ground on day 0.
__
4) In question 2, we found the rate per day (slope) to be 2.5. In question 3, we found the "y-intercept" to be -3. Then the slope-intercept equation with independent variable d and dependent variable h is ...
h = 2.5d -3
y is greater than or equal to 3 and less than 7
Select the inequality that represents this.
A B C D
need help again ...these questions are hard
Answer:
Number 1 and 4
Step-by-step explanation:
To do this substitute the different values of x and y into the equations and see if they come out true or not.
1. (4, -3)
Put x = 4 and y = -3 into both equations:
2x + y = 5 --> 2(4) - 3 = 5 --> 8 - 3 = 5 --> 5=5 (true)
6x + 3y = 15 --> 6(4) + 3(-3) = 15 --> 24 - 9 = 15 --> 15 = 15 (true
So number 1 works
2. (2, 4)
Put x = 2 and y = 4 into both equations:
2x + y = 5 --> 2(2) + 4 = 5 --> 4 + 4 = 5 --> 8 = 5 (NOT true)
Number 2 does not work
3. (1, 3)
Put x = 1 and y = 3 into both equations:
2x + y = 5 --> 2(1) + 3 = 5 --> 2+ 3 = 5 --> 5 = 5 (true)
6x + 3y = 15 --> 6(1) + 3(9) = 15 --> 6 + 27 = 15 --> 33 = 15 (not true)
Number 3 does not work
4. (0, 5)
Put x = 0 and y = 5 into both equations:
2x + y = 5 --> 2(0) + 5 = 5 --> 5 = 5 (true)
6x + 3y = 15 --> 6(0) + 3(5) = 15 --> 15 = 15 (true)
Number 4 does work
Number 1 and number 4 are the answers.
M
IF THE VOLUME OF THE BOX BELOW IS
x3 + 6x2 + 9x + 4
AND THE WIDTH OF THE BOX IS x + 4,
THEN FIND THE LENGTH AND HEIGHT OF
THE BOX
Answer:
The length of the box is (x + 1)
The height of the box is (x + 1)
Step-by-step explanation:
The given function representing the volume of the box is presented as follows;
V = x³ + 6·x² + 9·x + 4
The function representing the width of the box, W = x + 4
Therefore, we have;
(x³ + 6·x² + 9·x + 4)/(x + 4) = x² + 2·x + 1
x³ + 4·x²
[tex]{}[/tex] 2·x² + 9·x + 4
[tex]{}[/tex] 2·x² + 8·x
[tex]{}[/tex] x + 4
Therefore, we have;
(x³ + 6·x² + 9·x + 4) = (x + 4) × (x² + 2·x + 1) = (x + 4) × (x + 1) × (x + 1)
(x³ + 6·x² + 9·x + 4) = (x + 4) × (x + 1) × (x + 1)
The width of the box = (x + 4)
The length of the box = (x + 1)
The height of the box = (x + 1).
An airplane moves at a constant speed of 120 miles per hour for 3 hours. How many miles does it go?
Answer:
120 miles per hour
total time 3 hours
120 x 3= 360
the plane travels 360 miles
Step-by-step explanation:
Answer:
Someone calculated his or her average speed to 7.46 Miles per hour (mph) This calculation will help you calculate your average speed when you have covered a certain distance over a certain time.
Step-by-step explanation:
The re sults your produce from the speed calculator input will come out in a variety of forms You can also find a report on your speed in terms of kilometres per hour, meters per minute and metres per second. There is also a report on the time it takes you to travel certain distances. This report shows you min:sec per kilometre, seconds per 100 .
20/8 simplified to a fraction, then turned into a decimal. (2 different answers, 1 simplified fraction, then that simplified fraction to a decimal...)
Answer:
Simplified fraction: 5/2 Decimal: 2.5
Step-by-step explanation:
20/8 simplified is 5/2 which can also be said as 2 1/2 or 2.5.
(hope this helps)
Answer:
the anwser is 2.5
Step-by-step explanation:
Please help please please help me please
Answer:
12.68
Step-by-step explanation:
With reference angle 45°
perpendicular (p) = 9
hypotenuse (h) = c
Now
sin 45 ° = p/ h
0.71 = 9 / c
c = 9 / 0.71
c = 12.68
Hope it will help :)
What is an Integer
Answer:
A integer is number that can be written without a fractional or decimal component
Step-by-step explanation:
Answer:
An integer is a whole number. It doesn't matter whether it's positive or negative as long as its a whole number
(sorry if this doesn't make sense but I hope it helped)
collin invests £11180 into his bank account. he receives 4.3% per year simple interest. how much will collin have after 3 years?
Answer:
Step-by-step explanation:
To calculate simple interest use the following formula
Presentvalue(1+it)
where i=interest
t=time
We can easily plug in our values and solve for the answer
11180(1+0.043*3)
Put this into a calculator and get £12622.22
answer both correctly for brainliest
Answer:
8) y = x/2 + 6
9) x = -(7/4)
Step-by-step explanation:
for (8), start with point-slope form and enter -2, 5, and 1/2 into the appropriate places:
y-5 = (1/2)(x- -2)
simplify by distributing (1/2)
y-5 = x/2 + 1
add 5 to both sides to get yourself in slope-intercept form
y = x/2 + 6
for 9, start by distributing the 3 and the 2
6x-12 = 10x-8+3
combine like terms
6x-12 = 10x-5
subtract 6x from both sides
-12 = 4x-5
add 5 to both sides
-7=4x
divide both sides by 4
-(7/4) = x
PLEASEEE HELP: 20 points with step by step
Answer: hopefully, this is right i think its 5.873
Step-by-step explanation:
Combine like terms.
(-3x - 2) + (4y + 8x) + (3 + 7y)
(-3x – 2) +(4y +8x) + (3 + 7y) = (Simplify your answer.)
Answer:
5x+1+11y
Step-by-step explanation:
When Mariana does 19 push-ups and 6 sit-ups, it takes a total of 75 seconds. In comparison,
she needs 72 seconds to do 18 push-ups and 6 sit-ups. How long does it take Mariana to do
each kind of exercise?
HELP
Answer: It takes 3 seconds to do one of both i think
Step-by-step explanation:
19 and 6 was 75 and 18 and 6 was 72 which means 1 push up is 3 seconds multiply 3 by 18 that is 54 then subtract 72 by 54 which gives you 18 then divide 18 by 6 which is 3
what is 1/5 +2/4?the simplest form
Answer:
7 /10 0.7
Step-by-step explanation:
To add fractions, find the LCD and then combine.
Answer:
7/10
Step-by-step explanation:
First, find the smallest possible denominator between the two fractions. The smallest one is 20.
Now, both denominators need to become 20. To get the 5 in 1/5 to become 20, it needs to be multiplied by 4. Whatever you do to the denominator, you must do to the numerator.
1 x 4 = 4
The first fraction is now 4/20.
To get the 4 in 2/4 to become 20, you must multiply it by 5. Whatever you do to the denominator, you must do to the numerator.
2 x 5 = 10
The second fraction is now 10/20.
Add the fractions. Keep the denominators the same and add the numerators.
4/20 + 10/20 = 14/20
Simplify by dividing both numbers by 2
7/10
Sophie pays m dollars to rent a car for the weekend on the drive home she buys $45 worth of gasoline her friend melody pays for one half the cost of the car rental only.
Complete Question
Sophie pays m dollars to rent a car for the weekend. On the drive home, she buys $45 worth of gasoline. Her friend Melody pays for one-half the cost of the car rental only. Write an expression you could use to determine how much Sophie spent.
Answer:
1/2m + 45
Step-by-step explanation:
We are told in the question that:
On the drive home, she buys $45 worth of gasoline.
Her friend Melody pays for one-half the cost of the car rental only.
Sophie pays m dollars to rent a car for the weekend.
The amount sophie pays for car rental = m - 1/2m
= 1/2m
Therefore, the expression used to determine how much sophie spent is written as:
1/2 × $m + $45
1/2m + 45
x3+15=x9-3 pls answer
id-k but here we go
have you seen things of circles and triangles and squares? This problem is just like this. You would probably identify the squares circles and triagnles as...well....traingles circles and squares. Well, we do that but with the variables.
The numbers with 'x' is one group. And the one without it is another group. So....take 'x3' and take the x9. Because they have the same variable.
x3 + x9. (why we are adding is because it has nothing to drag with it and both of these numbers are positive)
x12!
Now do teh same with 15 and 3. Bring the plus and the subtraction sign with 3 and 15. We cant just leave them there. 15-3=12.
we have 12. this must equal 12!!!!!
Can someone help me
Meredith has 8 pages of homework to do. If she can finish of a page in one hour, how
many hours will her homework take?
Answer: 8 Hours to finish her homework.
Step-by-step explanation: We know each page, or 1 page takes 1 hour to finish. We want to know how many hours it would take to take finish 8 pages of homework. To find this, simply multiply 1 by 8. (1 hour per page, or 1 hour for each of the 8 pages.)
1 x 8 = 8.
So it will take Meredith 8 hours to finish her homework.
Answer:
it will take 8 hours if you mean one page an hour
Step-by-step explanation:
mark me brainliest pls