Answer:
225
Step-by-step explanation:
Mary = 3x (3 times Carey)
Carey = x
Barry = x/2 (Because Carey read twice as many as Barry, it means he read half the amount Carey did)
3x + x + x/2 = 405
4x + x/2 = 405
8x/2 + x/2 (treat these as fractions) = 405
9x/2 = 405
9x = 810 (cross multiply)
x = 90
Mary = 3(90) 270
Carey = 90
Barry = 90/2 45
Mary - Barry
270 - 45 = 225
Hope this helps! :)
Select all ratios equivalent to 14:4.
Answer:
the first option
Step-by-step explanation:
21:6=7:2
14:4=7:2
Answer:
Only option a is equivalent to the given ratio.
I hope it helped U
stay safe stay happy
Select all ratios equivalent to 1:2.
Answer:
10:20 and 4:8 I think .........
Answer:
The answer is the last 2
Step-by-step explanation:
10:20 can simplify to 1:2. 4:8 can also simplify to 1:2. 24:12 simplifies to 2:1, so that isn't the same.
If this helped, please mark me as brainliest. Thank you! ;)
PLEASSEEE HELPPPPPPPPP I WILL GIVE BRAINLIEST
Answer:
The answer's below :)
Hope this helps <3
Select all ratios equivalent to 3:6.
Step-by-step explanation:
3:6=3/6=1/2
28:36=28/36=7/8
4:9=4/9
8:16=8/16=1/2
Hence, 8:16 is equivalent to 3:6.
I hope it helped U
stay safe stay happy
Answer:
3:6=3/6=1/2
28:36=28/36=7/8
4:9=4/9
8:16=8/16=1/2
Step-by-step explanation:
I WILL MARK AS BRAINLIEST! Simplify
a) | -21 -17| = | - 38 | = 38
b) | 39 - 26 | = | 13 | = 13
c) | -17 -79 | = | - 96 | = 96
d) | -9+25 |= | 16 | = 16
e) | -21 -61 |= | - 82 | = 82
f) | 61-74 |= | - 13 | = 13
g) | -31 -79 |= | - 110 | = 110
h) | -12 +55 | =| 43 | = 43
I hope I helped you^_^
A car factory made 8 cars with a sunroof and 18 cars without a sunroof what is the ratio of the number of cars without a sunroof to the total number of cars?
Answer:
No of cars without sunroof=18
Total no of cars=18+8=26
Now,the ratio of cars without sunroof to total no of cars=18÷26
= 9÷13
Please can you answer these Alegbra questions.
30 POINTS ON THE LINE AND BRAINLIEST
(Please answer in step by step)
please help it would mean a lot thanks ! :)
How does this graph change between (2.5, 2) and (4.5, 0.25)?
increases
decreases
or
no change
I have a question that says: Sound is used to measure ocean depth. Sound travels 1.5 km per second through water. If it takes 3.7 seconds for a sound to reach the bottom of the ocean, how deep is the water? It is not that I can't solve the problem, I don't know the problem is asking. The only thing I know is that it multiplication. Please help me.
Hey there!
All you need to do to answer this question is to do 3.7 x 1.5 = 5.55 km. I hope this helps you out. Have a good day :).
I WILL MARK AS BRAINLIEST! Find the area and perimeter of the following figures
Step-by-step explanation:
it is really not complicated. we only need to type the numbers into the calculator.
so, what's the problem ? you don't know what a perimeter is ? it is the circumference, the total way you have to go when waking all around the figure.
you don't know the formulas for the areas of specific figures ?
let's start :
a)
the area of a rectangle is length×width. I hope you know this at least since first grade.
the important thing here is : the result is in² and not just in. it means an area counts the little squares that fill that area.
A = 30×8 = 240 in²
the perimeter, as explained, is the whole way around it. so, in the end, as you can easily see, we would have to go 2 times the long side and 2 times the short side.
the result is in (just a length, a distance not an area, not a cube, ...).
P = 2×30 + 2×8 = 60 + 16 = 76 in
b)
the area of a triangle is
baseline × height / 2
in this case (a right-angled triangle) we can assume one of the sides enclosing the 90 degree angle as baseline and the other as height (since there is already a 90 degree angle between them).
and again, the result is ft². we could express it also e.g. as in², but since the basic measures are in ft, it makes it better understandable to use ft².
A = 12×5/2 = 6×5 = 30 ft²
the perimeter is even easier than for the rectangle, as we have one side less to count.
and as before, we stay with ft.
P = 12 + 13 + 5 = 30 ft
c)
this is the only more special case.
but it is still easy.
the area is baseline × height.
and our unit of measurement here is cm, so the result will be cm².
A = 10×2 = 20 cm²
the perimeter is the same principle as with a regular rectangle, as the angles don't matter. only the side lengths matter.
so, again, while waking around it, we have to pass 2 times the long side and 2 times the short side.
and the result is a length, a distance again, so, it is cm.
P = 2×10 + 2×4 = 20 + 8 = 28 cm
Please help! Greatly appreciated. Thank you!
Answer: Q(7,-2), S(-3,6)
Step-by-step explanation:
Translate into a phrase 2x+9
Step-by-step explanation:
2x is added with 9
OR
sum of 2x and 9.
Given the line below.
please help! I will greatly appreciate it
Answer:
(1 1/4, -3/4)
Step-by-step explanation:
The x value, it is 1 and 1/4 units to the right of 0 so its 1 1/4
The y value, it is 3/4 units below 0 so -3/4
Coordinates = (x,y) so it is (1 1/4, -3/4)
If my answer is incorrect, pls correct me!
If you like my answer and explanation, mark me as brainliest!
-Chetan K
Answer:
A
Step-by-step explanation:
I need help on this question.
Answer:
answer for your question is 2) 5 and 7
-7/8 - ( -3/16 ) write your answer in simplest from
Answer:
-7/8 - ( -3/16 )
-7/8 + 3/16
Answer:
-11/16 or -0.6875
Step-by-step explanation:
-7/8-(-3/16)=
-7/8+3/16=
-11/16
or -0.6875
Does the expression 30 + (-23) represent the temperature at night?
Can someone help me with questions 22, 23, and 24 please I’ll appreciate it!
Answer:
for 24 Q it is 1/4
Step-by-step explanation:
Its so simple!
please help, thank u :)
Answer:
answer is 4√10x^2Step-by-step explanation:
4√10x^2
Find the number that makes the ratio equivalent to 3:2.
:24
Answer:
36:24
Step-by-step explanation:
24 divided by 2 which is 12 then 12x3 which is 36
I might be wrong but i think this is the answer.
Answer: 36 : 24
Step-by-step explanation:
3 / 2 = 12 * 3 / 12 * 2
= 36 / 24
= 36 : 24
Hope it helps !!
Find the unit rate.
56 newspapers in 2 piles =
newspapers per pile
Answer: The answer is 28 per pile
Help me Guess just help please
you would try all becauseyou all try you are intilligent mare than other
cole and rose are compairing their heights. cole is 7.1 meters tall. Rose is 20 centimeters shorter than cole
what is coles height
Answer:
150 meters is your answer hun.
Hello everyone, I have one more question. What is the formula for dividing decimals again? I reviewed this yesterday but continued to forget anyway.
Answer:
multiply the divisor by as many tens as necessary until we get a whole number, and remember to multiply the dividend by the same number of tens.
Step-by-step explanation:
Write 5/8 as a percent
A. 0.625
B. 62.5
C. 625%
D. 6.25
Question:- Write ⅝ as a percent
Answer:-
[tex] \frac{5}{8} [/tex]
For making it in percentage we need to multiple the fraction with 100
[tex] \frac{5}{8} \times 100\% \\ \frac{5}{ \cancel{8} {}^{ \: \: \: 2} } \times \cancel{100} {}^{ \: \: \: 25} \\ \frac{5 \times 25}{2} [/tex]
Now we will multiple and divide the above equation with 5 for easy solution. Or you can just divide the equation upto decimal for your answer
[tex] \frac{125}{2} \times \frac{5}{5} \\ \frac{625}{10} \\ 62.5 \: \% \: \: ans[/tex]
So your options (B) 62.5% is correct
How far was Zane from the edge of the volcano when he started climbing?
Answer:
Hope this helps
accoding to the web "He started out 25 meters below the edge of the volcano. It takes him 6.25 seconds to reach the edge."
Answer:
25 meters below the edge; 6.25 seconds
Step-by-step explanation:
We can represent this with a linear function in slope-intercept form.
We know the rate of change is 4 since he climbs up at 4 meters per second. We do not know the value of b, the y-intercept.
This gives us
y = 4x + b
We know that he is 13 meters below the edge after 3 seconds. Using -13 for y and 3 for x,
-13 = 4(3) + b
-13 = 12 + b
Subtract 12 from each side:
-13-12 = 12+b-12
-25 = b
This gives us the equation
y = 4x - 25
He started out 25 meters below the edge of the volcano.
To find how long it took him to reach the edge, substitute 0 in for y:
0 = 4x - 25
Add 25 to each side:
0+25 = 4x-25+25
25 = 4x
Divide both sides by 4:
25/4 = 4x/4
6.25 = x
It takes him 6.25 seconds to reach the edge.
I WILL MARK BRAINLIEST! Graph each coordinate pair on the graph and then indicate which quadrant or axis the point lies on.
Answer:
Shown in order of table.
quadrant 3
quadrant 3
quadrant 2
quadrant 2
quadrant 4
quadrant 1
quadrant 4
quadrant 3
Step-by-step explanation:
The quadrants left to right on an x and y standard form graph are
quadrant 2 , then quadrant 1
quadrant 3 then quadrant 4
On an xyz graph they do not change the z line becomes y line and diagonal acending axes becomes y in example.
Find all the angles in each of the following triangles (image
attached)
Answer:
1.
solution :
x+2x+2x=180degree(sum of angle of triangle )
5x=180degree
x=180/5
x=36
therefore, x= 36
2x=2*36
=72#
Find the unit rate.
10 minutes for 2 songs
=
minutes per song
Hi ;-)
10 minutes for 2 songs = 5 minutes per song
10 : 2 = 5
Answer:
5
Not to sure if it's correct
Step-by-step explanation:
10 ÷2= 5
how do you rewrite 2^-2
Answer:
[tex]2 ^{ - 2} \\ \frac{1}{2 ^{2} } \\ ( \frac{1}{2} ) ^{2} [/tex]
I hope it helped U
stay safe stay happy
Answer:
1/2^2
Step-by-step explanation:
When you have a number to a negative power, you can rewrite it inverting it's fraction and changing the signal of the power. 2 can be wrote as a fraction like 2/1, so you have 2^-2, it's like 2^-2/1, so you invert the fraction and the signal of the power, and have 1/2^2