Answer:
the answer the question s=20
HELP ME PLEASE
A certain drug is made from only two ingredients: compound A and compound B. There are 4 milliliters of compound A used for every 7 milliliters of compound B. If a chemist wants to make 1012 milliliters of the drug, how many milliliters of compound A are needed?
These are proportions.
Answer:
368 milliliters.
Step-by-step explanation:
Compound A + Compound B = 1 drug
4 + 7 = 1 drug
11 milliliters = 1 drug, so 1012 milliliters = 92 drugs
Multiply the compounds by the amount of drugs, e.g.
4 x 92 = 368 ( Compound A )
7 x 92 = 644 ( Compound B )
368 + 644 = 1012
368 milliliters of Compound A are needed to make 1012 milliliters of the drug.
Hope this helps :)
HELP ASAP!!!!
Select the correct answer.
What is the complete factorization of x2 - 6x + 9?
Answer:
(−3)2
Step-by-step explanation:
Answer: (x-3)2
Step-by-step explanation:
Sarah is having people over for her birthday party. If she orders 4 pizzas for 15 people, how many should she order for 30 people?
Answer: 8
Step-by-step explanation:
Answer: 8 pizzas.
Step-by-step explanation:If she is ordering 4 pizzas for 15 people then that simply means that the fraction is 4/15, 15*2 is 30, so that means that our next fraction (Equivalent fraction) will be like this 4/15 = -/30. What ever. Happens to the numerator must happen to the denominator and vice versa. So 4*2 is 8. So the answer is 8.
A basketball player attempted 24 shots and made 13
Answer:
he missed 11 shots
Step-by-step explanation:
if you are trying to find how many the basketball player didnt make you will do this
24 - 13 = 11
he didnt make 11 shots
hope this helps!!!
Anyone know what to do? I'm confused on it.
Answer:
i believe it's 2 per mile could be wrong tho :)
Step-by-step explanation:
Help asap .. thank you
Answer:
x=-3
Step-by-step explanation:
[tex]-15x=45\\-x=3\\x=-3[/tex]
Eight more than seven times a number is -20
Answer: The number is 0
Step-by-step explanation:
8 = 7x + 8
Then we solve it:
8 = 7x + 8
8 - 8 = 7x
0 = 7x
0 ÷ 7 = x
x = 0
hope this helps have a nice day
Which value is less than the fraction 5/25? Convert to decimal and then compare. A. 0.025 B. 0.200 C. 0.25 D. 0.525
*Please help i dont know the answer.*
A box holds 20 red hats, 30 blue hats, 15 green hats, and 25 white hats.
Find P(not red).
2 power x+1 minus 2power X-2
3.A cuboid has a volume of 384 cm. If the base and height are both 8cm, what is the length of
the cuboid?
Answer:
l = 6 cm
Step-by-step explanation:
Given that,
The volume of a cuboid, V = 384 cm³
The base and height are 8 cm
We need to find the length of the cuboid. The formula for the volume of a cylinder is given by :
[tex]V=l\times b\times h\\\\l=\dfrac{V}{bh}\\\\l=\dfrac{384}{8\times 8}\\\\l=6\ cm[/tex]
So, the length of the cuboid is 6 cm.
1) What is the surface area?
1 ft
8 ft
4 ft
Answer:
88 ft^2
Step-by-step explanation:
For a rectangular prism with dimensions 1 ft by 8 ft by 4 ft, there are two opposite faces with dimensions
1 ft by 8 ft,
two opposite faces with dimensions
1 ft by 4 ft,
and two opposite faces with dimensions
4 ft by 8 ft.
We find their area and add them.
SA = 2 * 1 ft * 8 ft + 2 * 1 ft * 4 ft + 2 * 4 ft * 8 ft
SA = 16 ft^2 + 8 ft^2 + 64 ft^2
SA = 88 ft^2
Elena goes for a long walk this graph shows her time and distance traveled throughout the walk what was her fastest speed in miles per hour
I'LL GIVE BRAINLIEST IF YOU HELP ME
Answer:
she walked the fastest around the 2 hour mark and she walked 4 miles per hour
Step-by-step explanation:
This slope is the steepest if we count it, and it comes out to 4 miles per hour.
Thanks for Brianliest :D
Please can help me ?
Answer:
??????????????
Step-by-step explanation:
Find the value of x that makes m||n. (7x - 23) (11x + 23)
(7x - 23)° + (11x + 23)° = 180°
7x - 23° + 11x + 23° = 180°
18x = 180° / : 18
x = 10°
how to find mean absolute deviation
what is 5/8 x 4 thanks for helping me
Answer:
Answer is 2.5
Step-by-step explanation:
I hope it's helpful!
Answer:
2.5
Step-by-step explanation:
hope this helps ;)
(cough)(cough)(brainliests)(cough)(cough)
did u hear that????????????
2x+3y=15
x+y=6
wats the value of x and y?
Answer:
2x + 3y = 15
x + y = 6 --> 2x + 2y = 12
By elimination method
2x + 3y = 15
-2 - 2y= -12
y = 3
x + y = 6
--> x = 3
uhmm this is probably so wrong
1 5 ? whats the missing number?
_ + _= _
9 6 18
Answer:
17 / 18
Step-by-step explanation:
1/9 + 5/6 needs to be converted to a different equivalent fraction so that the denominators are the same, so;
1/9 = 2/18 and 5/6 = 15/18
2/18 + 15/18 = 17/18!
I need help with this problem I would appreciate it if someone helped me I will give brainliest!
Answer:
Yes It Does
Step-by-step explanation:
The Equation DOES represent 4 + (-7) + 5 Which = 2 The arrows represent this process from down to up.
Hope it helps!
(multiple choice)
a cube has a volume of 64cm^3. what is the length of the sides of the cube?
a.) 16 cm
b.) 32 cm
c.) 4cm
d.) 8
Answer:
Step-by-step explanation:
B
how do you know when the solution of equations is a precise answer and when it is an approximate answer?
Answer:
an answer is precise when it is an exact number like 10, 2, or 123.
An answer is approximate when the decimal numbers are so close that could round it, and the rounded number would be equivalent to the original number. ex: 10.98 = 11
Please help, I’ll mark you as brainliest, it would be much appreciated
Answer:
Step-by-step explanation:
Well, since 50,000 dollars is in the 5% tax range, then we would have to find 5% of 50,000 dollars. So, we would have:
[tex]50,000\cdot5\%=50,000\cdot\frac{1}{20}=\frac{50,000}{20}=2500.[/tex]
HOPE IT HELPS.
Help please I will give you the brainliest
Answer:
x=15 degrees
Step-by-step explanation:
You know that the right angle is split in half to 45 degrees and 3x degrees. Because a right angle is equal to 90 degrees, 3x has to be equal to 45. Therefore, the equation will be 3x=45. You want to make x equal one so you have to divide 3 by each side. The equation will be x=45/3. Simplify that to get x=15. Therefore, x=15 degrees.
If this has helped you, please mark this answer as the brainliest
need help asap will give brainliest
Answer:
2/10
Step-by-step explanation:
Answer:5/10or 4/10
Step-by-step explanation:
It would be almost 50-50 since there are 10 but 4 one clot and 6 the other
Part A The top of a table is in the shape of a circle and has a diameter of 32 inches. At the center of the table, there is a small circle made of marble that has a radius of 4 inches. The rest of the table is made of glass. What is the distance around the edge of the table? Use 3.14 for 1. O 25.12 inches O 50.24 inches O 100.48 inches 32 in. in. O 803.84 inches Part B What is the area of the glass part of the table top, not including the marble center? Use 3.14 for . Square inches
Answer:
Step-by-step explanation:
The system of equations y = -2x+4 and
y = -x - 3 is graphed below. What is the
solution to the system of equations?
Y
67
Nyh
Х
3-2
UN
-5
-6
Answer:
(3,-2)
Step-by-step explanation:
The solution is, there is no solution to the system.
What is equation?An equation is a mathematical statement that is made up of two expressions connected by an equal sign. In its simplest form in algebra, the definition of an equation is a mathematical statement that shows that two mathematical expressions are equal. For instance, 3x + 5 = 14 is an equation, in which 3x + 5 and 14 are two expressions separated by an 'equal' sign.
here, we have,
Given the equation y=-2x+1
and given another equation y=mx+b in order for us to have no solution we must guarantee that both lines do not intersect.
Recall that m is the slope of the second equation and b the y-intercept. To guarantee that both lines don't intersect, they must be parallel.
To have this result, we must have that they have the same slope but different y intercept.
That is take m = -2 and b any value different to +1. For example, the b = 6.
So, y = -2x+6 = -2(x-3) is another equation that gives no solution to the system.
To learn more on equation click:
brainly.com/question/24169758
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Adam and Judy own a painting company. To paint a particular house alone, Adam estimates that it would take him 8 days. Judy estimates that it would take her 6 days. If these estimates are accurate, how long should it take the two of them to paint the house if they work together?
Answer:
It should take 3.43 days for the two of them to paint the house if they work together.
Step-by-step explanation:
The together rate is the sum of each separate rate.
In this problem:
Together rate: 1/x
Adam's rate: 1/8
Judy's rate: 1/6.
So
Together rate = Adam's rate + Judy's rate
[tex]\frac{1}{x} = \frac{1}{8} + \frac{1}{6}[/tex]
[tex]\frac{1}{x} = \frac{3 + 4}{24}[/tex]
[tex]\frac{1}{x} = \frac{7}{24}[/tex]
[tex]7x = 24[/tex]
[tex]x = \frac{24}{7}[/tex]
[tex]x = 3.43[/tex]
It should take 3.43 days for the two of them to paint the house if they work together.
I need help with this
Answer:
they're all wrong, it should be [3,4,7,9]
help me please this will help my grade !
Answer:
the answers B and D are correct
Answer:
B & D
Step-by-step explanation:
It can-t be A, because that would mean 20², which equals 400, would equal 20.
B is correct because even though it's negative, negative times negative = positive, which would mean that (-sqrt of 20)(-sqrt of 20)=20.
C is wrong because sqrt -20 is an imaginary number,which is a completely different topic.
D is correct because it's the same thing as B, but without the 2 negaties cancelling each other out.
E is the same as A, except it's '-20' x '-20', whcih is still 400, which is still wrong
Hope this helps :)