The Chemistry Club is experimenting with different mixtures of water with a
certain chemical to make fake snow.
To make each mixture, the students start with some amount of water, and then add
1/7 of that amount of the chemical, and then 9 more grams of the chemical. The
chemical is expensive, so there can't be more than a certain number of grams of the
chemical in any one mixture. How much water can you start with so that you don't
use up too much of the chemical?
a. 1/7x + 9 < 26.25
b. 9x + 1/7 s 26.25
26.25x + 9 = 1/7
C.
d. 1/7x + 26.25 39
Answer:
Suppose we have with x, the amount of water we use (in grams).
1/7 of this will be the chemical, then we have (1/7)*x grams of chemical.
Then we add another 9g of the chemical, then we have in total:
(1/7)*x + 9g of the chemical.
And we know that the chemical is expensive, so there can't be more than a given number of grams of the chemical, because of the phrase:
"...There can't be more than..."
We will have a relation like:
(1/7)*x + 9g ≤ something.
By looking at the options, we can see that "something" = 26.25 grams
then we will have the inequality:
(1/7)*x + 9g ≤ 26.25 g
Now we can solve this for x, the amount of water used:
(1/7)*x ≤ 26.25 g - 9g
x ≤ (26.25 g - 9g)*7
x ≤ 120.75 grams
This means that the maximum amount of water we can use is 120.75 grams of water.
A rectangular room is 9 feet long and 14 feet wide. The perimeter of the room is
feet.
Answer:
48 ft
Step-by-step explanation:
this is because the perimeter of the room is its sides so first you 9x2=18
then 14x 2= 28 and then 28 + 18 and you get 48 ft
To decorate 6 dozen cupcakes with red hot candies, Nan needs about 550 red hots. Which two sacks of candy would be the best buy?plsss help me asap giving brainless and explain whay is that the answer. (353, 177, 255, 379)
Answer:
If the numbers at the bottom are the sack size, then the 255 and the 353.
They give enough candy but not excessive given the sizes.
If this isn't right I will continue to try to help you but ill need more info
I need help ASAP please
Answer:
x = 12.4
Step-by-step explanation:
[tex] \tan(54) = \frac{x}{9} \\ x = \tan(54) \times 9 \\ x = 12.3874 \\ to \: the \: nearest \: tenth \\ x = 12.4[/tex]
I hope that is useful for you
Slope -7 and y-intercept (0,9)
Answer:
y=-7x+9
Step-by-step explanation:
the volume of a rectangular prism is 10 cubic feet. what could the dimensions of the prism be
We need 3 numbers that equal 10 when multiplied. 1, 5, and 2 are what come to mind for me.
1x5=5
5x2=10
---
hope it helps
Is (3,6) a solution of the system of linear equations below? Justify your response. Use of the graph is optional.
-6x + y= -12
X + y= -3
Answer:
No.
Step-by-step explanation:
The given system of equations are :
-6x + y= -12 ......(1)
x + y= -3 ......(2)
Put x = 3 and y = 6 in both equations i.e.
-6(3) + (6) = -12
And
3 + 6 = 9 ≠ -3
Hence, (3,6) is not the solution of the given system of equations.
B
280
D
C
What is the measure of angle ADB?
A. 17°
Answer:
C. 62
Step-by-step explanation:
ADC is 90 degrees. 90 - 28 = 62
Pls answer and show work!!
Marcos can eat 9 redhots in 15
seconds. At this rate, how
many red hots can he eat in 90
seconds?
Answer:
54
Step-by-step explanation:
90 divided by 15 is 6
9 times 6 is 54
Mark me as brainliest if this helps!
A BAG CONTAINS 10 RED BALLS AND FIVE BLUE BALLS WHAT IS TGE CHANCE OF PICKING A BLUE BALL.PLEASE EXPLAIN HOW TO SOLVE IT
Answer:
5/15
Step-by-step explanation:
there are 15 balls altogether, 5 of which are blue meaning there is a 5/15 chance of picking a blue ball which as a percentage is 33.33% chance
6x^2 - 37x + 13 = 6
Show why this quadratic trinomial cannot be factored with an explanation.
i have been struggling with this please help
What is the area of a quarter circle with a radius of 40 cm?
Answer:
A≈5026.55cm²
Brainliest please
A candy store in the mall orders 1000 boxes a month each box of candy weighs 45.9 grams . What is the total weight in grams of the candy in the store
Answer:
45900 grams
Step-by-step explanation:
All you need to do is multiply 45.9 grams by 1000 for the total combined weight of every box combined to get.
45.9 x 1000 = 45900
Pls someone help me with this question pls
What is the length of side s of the square shown below?
45
8
90°
S
O A. 413
B. 2
O C. 1
D. 6
E. 4
O F. 8-12
Answer:
A. 4√2..........................
The slope of a line is 1, and the y-intercept is -1. What is the equation of the line written in slope-intercept form?
Answer:
slope = 1
y-intercept - 1
slope intercept form: y = x - 1
Step-by-step explanation:
A line has a slope of
–
1
4
and passes through the point (
–
3,4). What is its equation in point-slope form?
Rosaria filled some cups with different amounts of water, as shown below.Red cup: 0.046 liters
Blue cup: 0.05 liters
Green cup: 0.20 liters
Yellow cup: 0.6 liters witch one
Answer:
Green cup: 0.20 liters
Step-by-step explanation:
Find the missing side. Round to the nearest tenth.
Answer:
Step-by-step explanation:
Use SOH CAH TOA to recall how the trig functions fit on a triangle
SOH: Sin(Ф)= Opp / Hyp
CAH: Cos(Ф)= Adj / Hyp
TOA: Tan(Ф) = Opp / Adj
1)
Hyp =40
∠48
x = Adj
use CAH since it's got these pieces in it
Cos(48) = x / 40
40* Cos(48) = x
26.76522 = x
x = 26.8 ( rounded to nearest 10th)
2)
∠29
Hyp = 35
Opp = x
use SOH since this problem has those pieces in it
Sin(29) = x / 35
35*Sin(29) = x
16.9683 = x
x = 17.0 (rounded to nearest 10th)
3)
40 = Adj
∠16
Hyp = x
use CAH again
Cos(16) = 40 / x
x = 40 / Cos(16)
x = 41.611
x = 41.6 (rounded to nearest 10th )
4)
∠55
Opp = 35
x = Adj
use TOA
Tan(55) =35/x
x = 35/Tan(55)
x = 24.5072
X = 24.5 ( rounded to nearest 10th)
ASAP I WILL GIVE BRAINIEST IF ANSWERED ASAP!! PLEASE PLEASE HELP
Answer:
2x + 3 =84
Step-by-step explanation:
Answer:
2x + 3 = 84
Step-by-step explanation:
Find the area of sector with a radius of 4 and a central angle of 30 degrees.
Answer:
Step-by-step explanation:
[angle of sector]/360 x π x radius ² [formula to find area of a sector]
30/360 x π x 4²
Type into a calculator
4.18879
Plzzz help I will mark Brainlyest
Answer:
6
Explanation:
the sum of all four angles in a quadrilateral is 360°. thus, to find the angle ∠JML, we need to subtract the values of the other angles from 360° as such:
360° - 66° - 74° - 110° = 110°
the total value of angle ∠JML is 110°.
now, since ∠JML is equal to 17x + 8, we can subtract 8° from 110° to get 102°. following that, we can divide 102° by 17 which yields us the result of 6. hence, we now know that x = 6.
Elmer has a collection of 300 fossils. Of these, 21% are fossilized snail shells. How many fossilized snail shells does Elmer have?
Answer:
63
Step-by-step explanation:
300 x 0.21 = 63
Solve for x.
4x - 6 = 30
Answer:
x = 9
Step-by-step explanation:
Move all terms that don't contain x to the right side and solve.
The solution to the equation 4x - 6 = 30 is x = 9.
What is the solution to the equation?Given the equation in the question:
4x - 6 = 30
To solve the equation 4x - 6 = 30, first, isolate the term with the variable:
4x - 6 = 30
Add 6 to both sides of the equation to isolate the term with the variable:
4x - 6 + 6 = 30 + 6
Add -6 and 6
4x + 0 = 30 + 6
4x = 30 + 6
Add 30 and 6
4x = 36
Divide both sides of the equation by 4 to solve for x:
(4x)/4 = 36/4
x = 36/4
x = 9
Therefore, the value of x is 9.
Learn more about equations here: brainly.com/question/14686792
#SPJ6
7. The complement of
Answer:
love
salvation
Step-by-step explanation:
Answer:
Hey!
Step-by-step explanation:
If A and B are sets, then the relative complement of A in B, also termed the set difference of B and A, is the set of elements in B but not in A.
Two Angles are Supplementary when they add up to 180 degrees. These two angles (140° and 40°) are Supplementary Angles, because they add up to 180°: Notice that together they make a straight angle.
What is 54.77 rounded to the nearest tenth ?
Please answer quick and just write explanation quick pls hurry quick for brainlessly ee
A line has a slope of 6 and passes through the point (0,0)
Answer:
y=6x
Step-by-step explanation:
y-y1=m(x-x1)
y-0=6(x-0)
y=6(x)
y=6x
Which in equality represents all possible solutions of -6n< -12
Answer:
n>2
Step-by-step explanation:
What is the degree of the following polynomial x²y³ + z