A car made a 60-mile trip at an average speed of 20 mph. On the return trip, the car's average speed was 30mph. What was the average speed of the car for the entire two-way trip?
A) 30 mph
B) 26.5 mph
C) 26 mph
d) 24 mph
Answer:26
Step-by-step explanation:
Solve: 1(3/5) + -2(4/5) =
Answer:
-1
Step-by-step explanation:
I had this question on my test and I got it right with this answer so duh its right!
:D
Answer:
-1
Step-by-step explanation:
(1-(3 divided by 5)) + ((-2)x(4 divided by 5))=
What does the point (0, 35) represent?
Answer:
the students read 35 pages in class to start the book
Step-by-step explanation:
that would only make sence, because 35 starts at 0, not 1, so your starting at 35, in class
Solve this equation y=bd-6, for b
Answer: [tex]b = \frac{y+6}{d}[/tex]
Step-by-step explanation: To isolate b, begin by adding 6 to both sides
y=bd-6
y + 6 = bd - 6 +6 This "cancels" 6 on the right leaving
y + 6 = bd Divide both sides by d
(y + 6)/d = bd/d This cancels d on the right leaving
(y + 6)/d = b To neaten this up rewrite (using the equations tool below)
[tex]b = \frac{y+6}{d}[/tex]
what is 20 times 30 divided by 65
Answer:
Step-by-step explanation:
20 times 30 =600
then you take 600 divided by 600
witch equals 1 the answer is 1
can someone help me out?
Answer:
5500 miles
Step-by-step explanation:
Since each hour is 550 miles, and we are solving how many miles in 10 hours, we just have to multiply 550 and 10
550 x 10 = 5500
Plss help me with this guys pls help I really need it can u help me with all of them plss
Answer:
11) 4
12) 11
13) 1
14) -2
15) 7
16) 79
17) -23
18) -68
Sorry if any are wrong
Answer:
9= -21 10= 33 ,11= 4 ,12= -11 , 13= 1 , 14= -2 , 15= 7 , 16= 79 , 17= -23 , 18= -68
Step-by-step explanation:
Help please ASAP please!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
b please mark me as barinlest
Step-by-step explanation:
If A. is a negative rational number and B. is a positive rational number, which of the following must be true? Give an example for the statements that are true and a COUNTEREXAMPLE for the statements that are false.
A. a - b is a positive
____________________________________
B. b - a is a positive
____________________________________
C. b + (-a) is a negative
____________________________________
COUNTEREXAMPLE : its a theory HELP MEEEEE PLES
Answer:
B,b‒a is a positive.
Step-by-step explanation:
if a=‒x x=rational number
b=x
let's see these by examples
A,a‒b is a positive, ‒x‒x=‒2x (the answer is negative) so this is wrong
B,b‒a is a positive, x‒(‒x)=x+x=2x (the answer is positive)so this is correct answer
C,b+(‒a) is a negative,x+‒(‒x)=x‒(‒x)=x+x=2x(the answer is positive)so this is also wrong
i hope it helps you
(15 PTS) Help me plz.
Answer:first one is 3x-4 cuz there’s all ready 2 x you just add another one and for the 2nd question x-5 3rd 15x+7
Step-by-step explanation:sorry I didn’t explain the whole thing I’m really tired
Answer:
See below
Step-by-step explanation:
1. Perimeter is the sum of all sides.
(x+4)+(x+4)+(2x-8)+(2x-8)
(x+4)+(x+4) = 2x+8
(2x-8)+(2x-8) = 4x-16
2x+8 + 4x-16 =
6x-8
2.
4x-5 Sat
3x-10 Sun
(4x-5)-(3x-10)
4x-3x = x
-5--10 = 5
x+5
3. Total, so add
8x+16 Sat
7x-9 Sun
(8x+16) + 7x-9
8x+7x=15x
16-9=7
15x+7
What is the surface area?
Answer:
the second option
Step-by-step explanation:
I hope this helps you!
Answer:
Step-by-step explanation:
It is indeed the second option i took the exact exam =)
9. What number belongs in the blank shown below to demonstrate the distributive property? 7(12+18) = (7 x 12) + ( ___ x 18) *
1 point
B. 30
C. 84
D. 7
A. 14
Pls help me with this it's due tonight... T^T
Proportional or not?
Answer:
non proportional
Step-by-step explanation:
Answer:
non proportional
Step-by-step explanation:
proportional graph is a straight line that always goes through the origin. A non-proportional graph is a straight line that does not go through the origin.
If Sara ran 34 km in 300 minutes, what was her speed in km/hr?
Answer:
6.8 km/hr
Step-by-step explanation:
If Sara ran 34 km in 300 minutes, then, in one hour, she would run
=> 34 : 300
=> ? : 60
=> 300 / 5 : 34 / 5
=> 60 : 6.8
So, if she travels 6.8 km in 60 minutes, her speed is 6.8 km/hr
If my answer helped, kindly mark me as the brainliest!!
Thank You!!
How many solutions does this system of equations have?
Exactly one
None
Infinitely many
Exactly two
Answer:
it has infinite solutions
Step-by-step explanation:
two paralel lines go forever
Write the slope-intercept form of the equation of the line through the given point with the given slope.
through: (3, -3), slope = -1
Compare the linear functions. Which function has the largest y-intercept?
Answer:
the one where it passes -2
Step-by-step explanation:
-2 > -3
72.3 + (-39.1)______33.2 rearrange using the Commutative Property.
Answer:
70 + 2 + 0.3 + (-30) + (-9) + (-0.1) = 70 + (-30) + 2 + (-9) + 0.3 + (-0.1)
Step-by-step explanation:
PLZ HELP I NEED WORK PLZ FAST Write the given equations in STANDARD FORM.
1) y + 4 = ½ (x – 4)
2) y = 2x + 3/7
(Just in case: Ax + By = C
A is positive
A and B are not 0
B can be negative
A, B, and C are integers)
Find each percent change to the nearest percent.
State if it is an increase or a decrease
1. From 74 hours to 85 hours
2.From 24 grams to 96 grams
Answer:
1 is a increase
2 is decrease
Step-by-step explanation:
Answer:
1 increase 2 decrease
Step-by-step explanation:
hope this helps
BRAINLIST and POINTS help
Answer:
58
Step-by-step explanation:
9*a=63-b=58
because a=7 and b=5
brainliest?
Whats the answer anybody???????
Answer:
17/50
Step-by-step explanation:
you just put the number over one hundred and if it can be simplified do it
Answer:
The answer is 17/50
For a beverage, Lisa mixes cups of lemonade to cups of iced tea in a ratio of 3:7. Which of the following best describes the amount of lemonade to iced tea? (4 points)
Group of answer choices
For every 3 cups of lemonade, there are 7 cups of iced tea.
For every 3 cups of lemonade, there are 4 cups of iced tea.
For every 7 cups of lemonade, there are 4 cups of iced tea.
For every 7 cups of lemonade, there are 3 cups of iced tea
Answer:
For every 3 cups of lemonade, there are 7 cups of iced tea.
Step-by-step explanation:
hope it helps give person below brainliest plz
Complete the multiplication problems and order them from least to greatest according to their products. 6.5x2.5 0.6x2.5 6.0x2.5
Please help!!
God bless! :)
Answer:
Step-by-step explanation:
Answer:
1.5 15 6.25
Step-by-step explanation:
Negative numbers are just like positive numbers, but they always have a factor of ___ built into them.
0
1
-1
Answer:
-1
Step-by-step explanation:
Kevin walked Three-fourths of a mile in 12 minutes. Assuming he walked at a constant speed the entire time, which expression can be used to determine the distance he walked each minute?
12 divided by three-fourths
12 times three-fourths
Three-fourths divided by 12
Four-thirds divided by 12
Answer:
Your answer would be C.
Step-by-step explanation:
The expression that can be used to determine the distance he walked each minute is x = 12/(3/4) miles option (A) is correct.
What is a fraction?Fraction number consists of two parts, one is the top of the fraction number which is called the numerator and the second is the bottom of the fraction number which is called the denominator.
It is given that:
Kevin walked Three-fourths of a mile in 12 minutes. Assuming he walked at a constant speed the entire time.
As we know,
The distance = speed x time
Speed is constant
distance ∝ time
3/4 ∝ 12
1 ∝ x
Here x is the distance traveled each minute
3/4 = 12/x
Or
x = 12/(3/4)
1/4 = 4/x
x = 16 miles
Thus, the expression that can be used to determine the distance he walked each minute is x = 12/(3/4) miles option (A) is correct.
Learn more about the fraction here:
brainly.com/question/1301963
#SPJ6
so uh....its like 3 different questions but you can put it like...
i.e.:
1:
2:
3:
yea like that but.... please help..i'll give brainliest too..
Answer:
1. 9;19
2. 7;16
3. B and D
Write an equation in standard form of the line that passes through (−6,−10) and has the slope m=1/6.
Step-by-step explanation:
y-b=m(x-a)
y--10=1/6(x--6)
y+10=1/6(x+6)
6y+60=1(x+6)
6y+60=1x+6
6y=1x-54
y=1/6x-54/6
y=1/6x-9
The equation of line is y= 1/6x - 9.
What is Slope?A line's slope is determined by how its y coordinate changes in relation to how its x coordinate changes. y and x are the net changes in the y and x coordinates, respectively. Therefore, it is possible to write the
change in y coordinate with respect to the change in x coordinate as,
m = Δy/Δx
where, m is the slope
Given:
slope= 1/6
and, passes through (−6,−10)
Now, using slope intercept form
y- a =m (x- b)
y - (-10)= 1/6(x -(-6))
y + 10= 1/6( x + 6)
y + 10 = 1/6x + 1
y= 1/6x - 9
Hence, the equation of line is y= 1/6x - 9.
Learn more about slope here:
https://brainly.com/question/3605446
#SPJ2
-5 5/8 ÷ 5
A) -1 1/8
B) -5/8
C) 5/8
D) 1 1/8
Raul is performing an experiment. He pours water into a glass and measures the temperature of the water at 72.3°F. Then he adds a few ice cubes to the glass of water. He measures the temperature of the water again and finds that it has changed by -39.1°F.
Simplify the expression in (-30) + 70 + (-9) + 2 +(-0.1) + 0.3 = 2 + (-9) + 70 + (-0.1) + 0.3 + 70
Answer:
When you add the left side of the equation, you get 33.2 because 70-30 is 40, 40+2 is 42, 42-9 is 33, 33+0.3 is 33.03, 33.3-0.1 is 33.2.
Step-by-step explanation:
Answer:
[70 + (-30)] + [2 +(-9)] + [0.3 + (-0.1)]
=
40 + (-7) + 0.2
=
33 + 0.2
=
33.2°F
The temperature of the water dropped to 33.2°F after Raul added the ice cubes.
Step-by-step explanation: