Answer:
A chemical change
Step-by-step explanation:
Since in the question it is mentioned that the Miriam wants to paint her room green so she makes a mixture of yellow paint 50% and the blue paint 50% so here the change that arise at the time when she mixed the paint is the chemical change as the two paints are mix together that means chemical together to develop a chemical change
So the first option is correct
Almost done pls help
Answer:
No
Step-by-step explanation:
Because, the radius on AI is 2" while LD is 3".
.Write in standard form. 4h - 6(5+7h)
Answer:
-38h-30
4h+(−6)(5)+(−6)(7h)
=4h+−30+−42h
=(4h+−42h)+(−30)
=−38h+−30
Pipe A can fill a tank in 5 hours. Pipe B can fill it in 2 hours less time than it takes pipe C, a draining pipe, to empty the tank. With all 3 pipes open, it takes 3 hours to fill the tank. How long will it take pipe C to empty it?
Answer: Time taken by pipe C to empty the tank = 5 hours.
Step-by-step explanation:
Pipe A can fill a tank in 5 hours.
Let time taken by Pipe C = x ( hours)
Time taken by Pipe B = x-2 ( hours)
Now, with all 3 pipes open, it takes 3 hours to fill the tank, it can be represented as
[tex]\dfrac15+\dfrac1{x-2}-\dfrac1x=\dfrac 13\\\\\Rightarrow\ \dfrac{x-(x-2)}{x(x-2)}=\dfrac13-\dfrac15\\\\\Rightarrow\ \dfrac{x-x+2}{x^2-2x}=\dfrac{5-3}{15}\\\\\Rightarrow \dfrac{2}{x^2-2x}=\dfrac2{15}\\\\\Rightarrow\ x^2-2x=15\\\\\Rightarrow\ x^2-2x-15=0\\\\\Rightarrrow\ x^2-5x+3x-15=0\\\\\Rightarrow\ x(x-5)+3(x-5)=0\\\\\Rightarrow\ (x-5)(x+3)=0\\\\\Rightarrow\ x=5, -3[/tex]
Time cannot be negative,
So, x=5
Thus, Time taken by pipe C to empty the tank = 5 hours.
If EC=13, find BD
find m
find m
20 pts for the first answer
Answer:
BD = 26
The measure of angle ADB = 59 degrees
The measure of angle DEC = 118 degrees
Step-by-step explanation:
BD = 2 * EC = 2 * 13 = 26
The measure of angle ADB = 90 - 31 = 59 degrees
The measure of angle DEC = 180 - 2(31) = 180-62 = 118 degrees
HELP PLZ DUE IN 30 MIN
x =
Answer:
x=4
Step-by-step explanation:
20x+5+24x-1=180
44x+4=180
- 4 -4
44x=176
/44 /44
x=4
9514 1404 393
Answer:
x = 4
Step-by-step explanation:
The two marked angles are supplementary when the lines are parallel.
(20x +5)° +(24x -1)° = 180°
44x +4 = 180 . . . . . . simplify
44x = 176 . . . . . . . . . subtract 4
x = 4 . . . . . . . divide by 44
__
The two angles are ...
(20·4 +5)° = 85°
(24·4 -1)° = 95°
What is the value of fraction 1/2*x*4 + 5.2y, when x = 2 and y = 3
19.6
*i think*
1/2 times 2 is 1;1 times 4 is 4;4 plus 5.2(3)= 4 plus 15.6 = 19.6
Jason agreed to make 12 payments of $38.50 to buy a new TV so far he has made Seven payments how much more money does Jason owe
Answer:
$192.50
Step-by-step explanation:
12*38.50=462
7*38.50=269.5
462-269.50=192.50
help pls pls!!! i need help
Plzzzzzzzzzzz helpp ASAP
Answer:
the answer a
Step-by-step explanation:
i had it
Solve the equation
2x^2 + 8x - 1 = 0
by completing the square.
Give your answers correct to 2 decimal places.
Step-by-step explanation:
2x² + 8x - 1 = 0
2(x + 2)² - 9 = 0
2(x + 2)² = 9
(x + 2)² = 4.5
x = √4.5 - 2 or x = -√4.5 - 2
x = 0.12 or x = -4.12.
Which equation shows one way to find the value of 45 × 4? 45 × 4 = (9 × 5) × (2 × 2) = (9 × 2) × (5 × 2) = 18 × 10 = ? 45 × 4 = (9 × 5) × (2 × 2) = (9 + 5) × (2 + 2) = 14 × 4 = ? 45 × 4 = (9 × 5) × (2 × 2) = (9 + 2) × (5 + 2) = 11 × 7 = ? 45 × 4 = (9 × 5) × (2 × 2) = (18 × 2) × (10 × 9) = 36 × 90 = ?
Answer:
45 × 4 = (9 × 5) × (2 × 2) = (9 × 2) × (5 × 2) = 18 × 10 = ?
Step-by-step explanation:
Which equation shows one way to find the value of 45 × 4?
45 × 4
Splitting each number into factors of each other
45 = 9 × 5
4 = 2 × 2
45 × 4 = (9 × 5) × (2 × 2)
45 × 4 = (9 × 2) × (5 × 2)
45 × 4 = 18 × 10
Option A is the correct option
1.5:4=9:(2y+5)
Solve for y
Answer:
y = 9.5
Step-by-step explanation:
Express the ratios in fractional form, that is
[tex]\frac{1.5}{4}[/tex] = [tex]\frac{9}{2y+5}[/tex] ( cross- multiply )
1.5(2y + 5) = 36 ( divide both sides by 1.5 )
2y + 5 = 24 ( subtract 5 from both sides )
2y = 19 ( divide both sides by 2 )
y = [tex]\frac{19}{2}[/tex] = 9.5
slope and y intercept of 5x + 8y = 8
Answer:
Slope: -5/8
y intercept: (0,1)
Step-by-step explanation:
The slope of the line will be {m} = -5/8 and the y - intercept will be 1.
What is direct variation?Direct variation of a quantity {y} with respect quantity {x} means that the value of {y} increases as the the value of {x} increases. Mathematically -
y = Kx
K = y/x
where -
{K} is scale factor. It also tells by how many times is {y} greater than {x}.
Given is the equation of a straight line as -
5x + 8y = 8
We can rewrite the equation as -
5x + 8y = 8
8y = - 5x + 8
y = -(5/8)x + 1
So the slope will be -
m = -(5/8)
c = 1
Therefore, the slope of the line will be {m} = -5/8 and the y - intercept will be 1.
To solve more questions on direct variation, visit the link below -
brainly.com/question/14254277
#SPJ2
Which equation has infinitely many solutions?
Answer:
The equation 2 x + 3 = x + x + 3 is an example of an equation that has an infinite number of solutions.
This my question on the photo can you help me
Answer:
45 degree..................................
2) Pranavi can hike 1/3 mile in 7 1/2 minutes. How long would it take her to hike
a mile?
HELP PLS ITS DUE IN A FEW MINS
Answer: 22.5 minutes
Step-by-step explanation:
Answer:
22.5
Step-by-step explanation:
7 1/2 = 15/2
15/2 minutes per 1/3 mile
1/3 x 3 = 1
15/2 x 3 = 22.5
22.5 minutes per mile
Give Nitroprusside 5 mcg/kg/minute via continuous infusion for a patient weighing 205 lbs. Nitroprusside is available in a solution of 200 mg in 250 mL D5W. What rate on the infusion pump will deliver the correct dose?
Answer:
35 ml/hr
Step-by-step explanation:
Convert lbs to kg
205 ÷ 2.2 = 93.18 = 93.2 kg
Calculate the minute rate
93.2 kg x 5 mcg/kg/min = 466 mcg/min
Calculate hourly rate
466 mcg/min x 60 mins/hr = 27,960 mcg/hr
Drug is expressed in mg, so convert mcg to mg
27,960 mcg = 27.96 mg
Jade has 100 to spend on shoes and socks. She buys a pair of shoes for 75 and wants to wants to spend the rest of the money on socks. Each of socks cost $3.50. let n represent the number of the pair of socks that jade can buy. Which inequality represents her situation?
Answer:
75 + 3.5n ≤ 100
Step-by-step explanation:
Given that:
Total amount = $100
Cost of shoe = $75
Cost per socks = $3.50
n = number of socks pairs
Cost of shoe + (cost per pair of socks * number of socks) ≤ total amount
75 + (3.50 * n) ≤ 100
75 + 3.5n ≤ 100
what is thr y-intercept shown in the graph
Answer:
It’s 0,0
Step-by-step explanation: it only crosses the origin once and on the 0 so.
Answer:
0
Step-by-step explanation:
The line crosses at the origin.
The line AB is shown on the grid.
a) Find the gradient of a line
perpendicular to AB.
b) Find the equation of the line
perpendicular to AB and passing
through the midpoint of AB.
Answer:a=-2
Step-by-step explanation:
Name at least two independent variables that could result in a change in the price of a basket of apples.
Answer:
In an experimental study looking at classical music exposure and reading ability in children, the researcher divided the children into two groups (Groups A and B
Salaries, Wages, and Environment are the independent variables that could result in a change in the price of a basket of apples.
What are Independent variables?Generally, Independent variables are variables that are not dependent on the price of any item indirectly.
We have to Name at least two independent variables that could result in a change in the price of a basket of apples.
Therefore,
We have that
Salaries
Wages
Environment
People Can affect the price of a basket of apples indirectly.
For more information on Independent variables visit
https://brainly.com/question/17364204
HELPPPPP PLZZZZZZZ PLLLZZZ BRANLIESTTTT look THAT THE PICTURE
Answer:
y is equal to or greater to one
y > 1 (BUT THE > HAS A DASH UNDER IT)
Step-by-step explanation:
it's a colored in circle and i was taught that that's when the point is included (that's why a dashed should be under the >)
Answer:
[tex]y \geqslant 1[/tex]
Step-by-step explanation:
the coloured dot means it is equal to or more than 1
as the arrow moves toward bigger numbers than 1
HELP PLS ILL MARK BRAINLIEST PLEASEEEEEEEEE
Answer: A
Step-by-step explanation: because I had that same test last year
Write a linear equation with a slope of -9/5 and passes through the point (10,-2).
Answers + explanations please!
1/4 as a decimal rounded to one significant figure
Answer:
0.2
Step-by-step explanation:
Answer:
The correct answer is 0.25
Convert the fraction to a decimal by dividing the numerator by the denominator.
0.25
"The difference between four-fifths of
a number and 11 is -46."
Answer:
The number is -43.75.
Step-by-step explanation:
4x/5 - 11 = -46
4x/5 = -35
x = -43.75
Answer:
-43.75
Step-by-step explanation:
This is the answer because:
1) We know that 4/5 of a number has to equal -35 since -46 + 11 = -35.
2) 4/5x = -35 (solve for x): -35 ÷ 4/5 = -43.75
3) 4/5 x -43.75 = -35, I got this by solving for x (look at step 2)
Therefore, the answer is -43.75
Hope this helps! :D
julie has 3 1/3 yards of fabric to make doll outfits each outfit requires 5/6yard of fabric what is the max number of outfits she can make
Answer: 4
Step-by-step explanation:
From the question, we are informed that julie has 3 1/3 yards of fabric to make doll outfits and that each outfit requires 5/6yard of fabric
The number of outfits she can make would e:
= 3 1/3 ÷ 5/6
= 10/3 × 6/5
= 4
Grayson bought snacks for his team's practice. He bought a bag of oranges for $3.11
and a 24-pack of juice bottles. The total cost before tax was $50.15. How much was
each bottle of juice?
Answer:
so he bought oranges of 3.11 and a 24 pack of juice bottles the total cost before tax was 50.15 how much was each bottle of juice what you have to do is....
2
Step-by-step
its 2 dollars each or 2.10 dollars each
7th-grade math slope problem.
Answer: It should be C. (0,2)
Step-by-step explanation:
Since you are in 7th grade and have not learned about the slope-intercept form yet, I won’t write the explanation for it, since my explanation uses the slope-intercept form. (Sorry)
Find the slope given the equation below:
y = 8/3x - 5
Answer:
Slope: 8/3
Step-by-step explanation: