Answer:
13°C
Step-by-step explanation:
The number of hours that the temperature fluctuates is irrelevant to the problem.
This problem is asking how many degrees did the temperature increase in order to go back to 30°C after being decreased by 13°C.
Find the new temperature after it decreased:
30°C - 13°C = 17°CIf the temperature after decreasing is 17°C, it needs the same amount it was decreased by to go back to 30°C.
Therefore, the temperature subsequently increased by 13°C to go back to 30°C after being decreased by 13°C.
Need help with this question
Answer:
Correct answer is no. 1
Step-by-step explanation:
Answer:
Choice A, or the first choice, should be the answer
Step-by-step explanation:
By using the process of elimination, you can cross out choices B and C because the speed limit is 30.
The speed limit is 30, thus your speed can be at 30 mi/h.
Choice A is the last and the correct answer.
An 80% confidence interval is found to be (26, 38). What is the margin of
error?
A. 9.6
B. 12
C. 6
D. 4.8
Answer:
C : 6
Step-by-step explanation:
Velma is analyzing spending habits of the gang. She find a mean monthly discretionary expense of $70 spent on having meals out with friends. The standard deviation of the distribution is 5. Give the range of amounts within 1 standard deviation of the mean and explain what percent of friends will have be within 1 standard deviation if it is a normal distribution.
Answer:
im here for the points
Step-by-step explanation:
first come first serve
1+1 equals what
you will get 40 points
Answer: 1+1 = 2 :)
Step-by-step explanation:
Answer:
1+1=2
this is a very simple question
Two rectangles are similar. The
ratio of the length of rectangle A
to the length of rectangle B
is 1:4. If the length of rectangle
B is 14 meters, what is the
length of rectangle A?
Write the coordinates of each image. Use the graph to help you out.
whats 43.6 rouded to the nest tenth
Answer:
43.6
Rounded to the nearest 0.1 or
the Tenths Place.
what is the rate of change for the function y= 5x+ 25
Answer:
5
Step-by-step explanation:
rate of change = slope = 5
HELP MEEEE!
7th gradeeee
Answer:
0=0
Step-by-step explanation:
Add zero
0+2=2
2=2
Subtract 2 from both sides of the equation
2=2
2−2=2−2
Simplify
Combine like terms
2−2=2−2
0=2-2s
or
0=2s-2
0=0
Answer 0=0
Solve: a + 4 = 48
a = 43
a = 51
a = 44
a = 52
Answer:
a = 44 is correct
Step-by-step explanation:
a + 4 = 48
plug in the #'s 1 at a time
43 + 4 = 48
47 = 48 FALSE
51 + 4 = 48
55 = 48 FALSE
44 + 4 = 48 TRUE
52 + 4 = 48 FALSE
Hope this Helps!!!
Answer:
Your answer would be a= 44
Step-by-step explanation:
44+4=48
To check: 48-4=44
Therefore, your answer is 44
A gray crayon is made with 5\text{ mL}5 mL5, start text, space, m, L, end text of black wax for every 6\text{ mL}6 mL6, start text, space, m, L, end text of white wax.
Step-by-step explanation:
Given that,
A gray crayon is made with 5 mL of black wax for every 6 mL of white wax.
We need to find the mixture will create the same shade of gray.
For this we need to make the ratio same.
If we multiply 5 mL and 6 mL by 3 to make the ratio same.
5 mL × 3 = 15 mL
6 mL × 3 = 18 mL
Hence, 15 mL of black wax mixed with 18 mL of white wax is mixed so as to make the ratio same.
Answer:
15ml of black wax mixed with 18ml of white wax
35ml of black wax mixed with 42ml of white wax
Step-by-step explanation: Khan Academy
A number, rounded to 1 significant figure, is equal to 300.
Write down the lower and upper bounds of the number.
Answer:
lower bound is 299.5, upper bound is 300.5
Step-by-step explanation:
Explain and Show the equation of line perpendicular to y=-1x+2 going through the point (6, 3)
Answer:
y = x-3 is the equation
Step-by-step explanation:
If two lines are perpendicular, the product of their slopes is -1
The general equation form of a straight line is;
y = mx + b
Fro the equation;
y = -1x + 2
The slope is -1
So the equation of the perpendicular line is as follows;
-1 * m = -1
m = 1
so we can use the point-slope equation form
That would be:
y-y1 = m(x-x1)
y-3 = 1(x-6)
y-3 = x-6
y = x-6+3
y = x-3
Solve 37+z≤54
then graph the solution
37.
An express train travelled at a certain average speed from Town X to Town Y which was
150 km away. It then continued its journey to Town Z at an average speed 20 km/h faster than
its initial average speed. Town Ywas 200 km from Town Z. If it took the same time to travel for
both parts of the journey, what was the train's average speed for the first part of the journey?
Answer:
60 km/hr
Step-by-step explanation:
Let the speed at the initial average speed from Town X to Town Y be a.
We are told that it journeyed to Town Z at an average speed 20 km/h faster than its initial average speed. Thus, its average speed here is (a + 20) km/hr.
Town Y was 200 km from Town Z.
Thus, time spent here is;
t_2 = 200/(a + 20)
Time from X to Y is; t_1 = 150/a
We are told that it took the same time to travel for both parts of the journey.
Thus; t_1 = t_2
150/a = 200/(a + 20)
Cross multiply to get;
150(a + 20) = 200a
150a + 3000 = 200a
200a - 150a = 3000
50a = 3000
a = 3000/50
a = 60 km/hr
What does 8×9 equals?
1. 72
2.85
3.34
4.56
Answer:
8x9=72
Step-by-step explanation:
I hope that this helps u out..there is not really any explanation
Answer:
72
Step-by-step explanation:
8 Times Table
8 × 1 = 8
8 × 2 = 16
8 × 3 = 24
8 × 4 = 32
8 × 5 = 40
8 × 6 = 48
8 × 7 = 56
8 × 8 = 64
8 × 9 = 72
8 × 10 = 80
8 × 11 = 88
8 × 12 = 96
Find the area of the triangle
Answer:
I believe the answer would be 12
Step-by-step explanation:
Which expressions are equal to 105?
Answer:
2•2²×100+5.
Step-by-step explanation:
Do y’all know the answer to this !?
Answer:
Step-by-step explanation:
set jk and kl equal to each other bc they are the same length (we know this bc of the midpoint)
3x - 1 = 2x + 8
x = 9
substitute 9 in an equation
2(9) = 8 = KL
18 + 8
26 = KL
since KL is the same length as JK we can just multiply 26 * 2
JL = 52
hope this helps <3
Someone help me find the roots that this function have in common please
Answer:
B
Step-by-step explanation:
Carlotta has a blue sweater, a red sweater, a pink sweater, and a white sweater. She also has a pair of black pants
and a pair of brown pants. Which of the following shows how many different ways she can wear a sweater and pair of
pants together?
!!!!!!WILL MARK BRAINLIEST!!!!!!
Answer:
The answer is D.
Step-by-step explanation:
A rectangle has a height of 5 and a width of 4x^2-2x-6
Which statements are true about the function f(x) = –|x| – 2? Check all that apply.
The parent function and this function open in the same direction.
The parent function and this function have the same range.
The parent function and this function have the same domain.
The range of the function is all real numbers less than or equal to –2.
The domain of the function is all real numbers greater than or equal to –2.
There are no values from the domain of the parent function that are also in the domain of this function.
Answer:
a c d f
Step-by-step explanation:
Answer:
its (c) and (d)
Step-by-step explanation:
Find the value of x
?????
Answer:
2x+57°+x=180 ( angle sum property of triangle)
3x=123
x=41
What is a simplified expression term for -10f + -9f + 7
Answer:
-19f + 7
Step-by-step explanation:
group the fs
-19f + 7
is the simple expression
write an equivalent expression for 8x + 9
Answer:
8+8+8+8+8+8+8+8+8.
Step-by-step explanation:
Just add 8 nine times.
Answer:
9 + 8x
Step-by-step explanation:
it's the same but backwards
it's called a Palindrome
Hope this helped a little!
The wildflowers began blooming by my house at the beginning of March. The first week there were 72 blooms. After week two, there were 144 flowers in bloom. If the flowers continue to bloom at the same rate each week, how many flowers will there be after 7 weeks?
Answer:
answer: 504 blooms <3
Step-by-step explanation:
if you add 72 and 72 then you get 144 so that means 72 blooms each week so if you multiply 72 x 7 you get 504!
Tasha believes that she can rewrite the differences 48-36 as a product of the GCF of the two numbers and another difference. Is she correct?
Answer:
Tasha is correct
Step-by-step explanation:
Answer:
Yes she is correct.
Step-by-step explanation:
Given the equation kx – 17 = 51 + x, where k=1, solve for X.
Answer:
No solution for x, when k = 1x = 68/(k - 1), when k≠ 1Step-by-step explanation:
Given the equation
kx – 17 = 51 + x, where k = 1,Solve for x:
1*x - 17 = 51 + xx - 17 = x + 51x - x = 51 + 170 = 68,Incorrect equation, no solution for x when k=1
Solving for x when k ≠ 1
kx - 17 = 51 + xkx - x = 51 + 17x(k - 1) = 68x = 68/(k - 1)I need help please help me number 3 and 4
3. is 10 add 5 or round 5 its 10 4. is 28 and i just added sorry if 4 is wrong
