Answer: 18 sixth graders
Step-by-step explanation:
Let
x-----> the number of sixth graders in the band
y-----> the number of seventh graders in the band
we know that
-----> equation A
------> isolate the variable y
-----> equation B
Substitute equation B in equation A
x+ (1.5x) = 45
2.5x=45
x=45/25= 18 sixth graders
Answer: A. 9/14 B. 8/25.
Step-by-step explanation: 9/14=0.642857143 and 8/25=0.32 it is 0.32 because that is 0.64 cut in half.
Triangle XYZ has vertices X: (0,2) Y: (3,8), and Z: (6,2). Show that the triangle is isosceles by determining the length of each side.
Please help!!!!
Answer:
given below
Step-by-step explanation:
formula used= [tex]\sqrt{(x2-x1)^2+(y2-y1)^2}[/tex]
XY= [tex]\sqrt{(3-0)^2+(8-2)^2}[/tex] = [tex]\sqrt{9+36} =\sqrt{45}[/tex] (here x1=0, x2=3, y1=2, y2=8)
YZ= [tex]\sqrt{(6-3)^2+(2-8)^2}[/tex] = [tex]\sqrt{9+36} = \sqrt{45}[/tex]
ZX= [tex]\sqrt{(6-0)^2+(2-2)^2}[/tex] = [tex]\sqrt{36+0} = \sqrt{36}[/tex]
as you can see side XY=YZ=45
so triangle XYZ is an isosceles triangle
hope this helps :)
At a restaurant, hot chocolate can be purchased in two different cup sizes. A 12-ounce cup costs $4.80 and a 16-ounce cup costs $6.40.
Is the linear relationship between cup size and cost also proportional? Why or why not?
Yes, there is no constant of proportionality.
Yes, the constant of proportionality is 0.4.
No, the constant of proportionality is 0.4.
No, there is no constant of proportionality.
Answer:
Yes, the constant of proportionality is 0.4.
Step-by-step explanation:
[tex] \frac{4.80}{12} = \frac{48}{120} = \frac{2}{5} = .4[/tex]
[tex] \frac{6.40}{16} = \frac{64}{160} = \frac{2}{5} = .4[/tex]
Yes, the given relation is proportional with a constant of proportionality is 0.4 thus option (B) is correct.
What are the ratio and proportion?The ratio is the division of the two numbers.
For example, a/b, where a will be the numerator and b will be the denominator.
Proportion is the relation of a variable with another. It could be direct or inverse.
As per the given,
A 12-ounce cup costs $4.80.
The ratio of cost to ounce = 4.80/12 = 0.4
A 16-ounce cup costs $6.40.
The ratio of cost to ounce = 6.40/16 = 0.4
So constant of proportionality is 2.5.
Hence "Yes, the given relation is proportional with a constant of proportionality is 0.4".
For more information about ratios and proportions,
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ANSWER QUICKK
Divide 4 11/16 by 1 1/4
Answer:
411/44 or 9.340909091
Which of the following does not represent the shaded part below?
Answer:
c
Step-by-step explanation:
0.06=6/100
PLEASE ANSWER!!!
....
Answer:
-3(8+2)
Step-by-step explanation:
since they are both being multiplied by -3 we can make it look like this
-3(8+2)
Hopes this helps please mark brainliest
The person that is the most kind gets a brainiest award
P.S: evaluate this function: f(x) = 3x^2+5x+6
Explanation:
This is unable to be evaluated due to the function not being stated. X has to be a number for us to be able to solve the equation and for It to be evaluated. 3x to the second power is gonna stay that since there isn't another power integer on 5x and 6 is staying like that since there is nothing for it to be added or subtracted to.
So the answer is simply:
3x^2+5x+6
A salesperson works 40 hours per week at a job where she has two options for being paid. Option A is an hourly wage of $18. Option B is a commission rate of 8% on weekly sales. How much does she need to sell this week to earn the same amount with the two options?
Joelle can read 3 pages in 4 minutes, 4.5 pages in 6 minutes, and 6 pages in 8 minutes. Paxton can read 3 times as fast as Joelle. Which is the equation for the number of pages y that Paxton can read in x minutes?
A. y = 9/4x
B. y = 6/5x
C. y = 3/4x
D. y = 1/4x
Please show work
Answer:
C. y = 3/4x
Step-by-step explanation:
3 pages = 4 min
4.5 pages = 6 min
Paxton = Joelle×3
3/4 = 0.75 (Joelle reads 0.75 pages in 1 min)
Paxton = 0.75×3
C. y = 3/4x
for example if y=3 and x=4 than
3 = 3/4×4 3 = 0.75×4 (which equals to 3)
Evaluate and solve for the variable and graph the resulting solution set, showing ALL work.
a) x/4 > 10
-------|--------|-----------|--------|
b) -5g < 15
---|-------|--------|---------|---------|
c) t - 4 ≤ -3
--------|---------|-----|------|
d) 4d > -12
------|--------|--------|------
e) u + 12 ≤ 5
-------|---------|-------|----
f) j - 4 ≥ - 4
-------|--------|------|-------
Which property is 1/4(24 x5)
Which number line represents 30%?
Answer:
C
Step-by-step explanation:
30%=
30/100=
3/10=0.3
0.3<1, and is 3/10 of 1.
An indoor soccer field can be rented for personal use. The total cost for renting the field can be found by using the equation y = 225x + 200. The x-variable is the number of hours the field is being rented, the constant is the flat rate for renting the field, and the y-variable is the total cost, in dollars.
Which statement is true based on the given equation?
The equation shows a linear relationship, but not a proportional relationship.
The equation shows a linear relationship and a proportional relationship.
The equation does not show a linear relationship or a proportional relationship.
The equation shows a proportional relationship, but not a linear relationship.
The statement that is true based on the given equation is (c) The equation does not show a linear relationship or a proportional relationship.
How to determine the true statement?
The equation of the function is given as:
y = 25x^2 + 60
Linear equations can take any of the following forms
Ax + By = C
y = mx + c
y - y1 = m(x - x1)
Any equation that takes a form different from the above forms is not a linear equation
Hence, the statement that is true based on the given equation is (c) The equation does not show a linear relationship or a proportional relationship.
Answer:
425 is the answer.
Step-by-step explanation:
Write as the opposite of a square root
-2√3
-3√5
-7√a
-0.2√b
Answer:
[tex] \sqrt[6]{512} [/tex]
help on 16 and 17 please
Answer:
16) 30 units squared
17) 28 units squared
Step-by-step explanation:
To find the area you need to multiply length times width.
Answer:
16.=30
17.=32
Step-by-step explanation:5*6=30 and 4*8=32
someone please answer this for me before 2:20!! ty ^^
Which equation applies the associative property of multiplication?
Answer:
a c d
Step-by-step explanation:
At the beginning of spring, Sophia planted a small sunflower in her backyard. When it was first planted, the sunflower was 25 inches tall. The sunflower then began to grow at a rate of 3 inches per week. How tall would the sunflower be after 9 weeks? How tall would the sunflower be after
w
w
w weeks?
ONLY SOLVE FOR W NOT THE 9 WEEKS
Answer:
25+3w
Step-by-step explanation:
Since it started at 25 inches, you put 25.
And since every week it grows 3 inches it would be 3w.
So 25+3w
This is a science question but I can't find science so yeah the article needs to be annotated and the questions on the sides answered ( I am asking for help because I am dyslexic and struggle reading and writing )
This assignment is due soon! If someone can help me answer this it would be amazing. It is about Transversals of Parallel lines: name angle pairs.
Why did the spelling and grammar checkers in Word miss the errors highlighted in yellow?
3-5 sentence
Answer:
Spelling and grammar missed them because the highlighted errors are actually words that are not in the right place and when you misspelled them, it turned into a word in the incorrect place.
Step-by-step explanation:
How many sides do 4 nonagons and 4 triangles have in all?
Answer:
Sorry for the late answer!
Step-by-step explanation:
A nonagon has 9 sides so 9 * 4 = 36
and a triangle has 3 sides so 3 * 4 = 12
add them together (36 + 12 = 48)
Your final answer will be 12, Hope this helps, and have a great day!
Find the missing number so that the equation has infinitely many solutions.
x – 14 + (Blank)x =4x – 14
Answer:
3
Step-by-step explanation:
for this to have infinite amount of solutions both sides should equal each other and be the same
X-14+ blank x=4x-14
+14. +14
x+blank x=4x
-x. -x
Blank x=3x
/x. /x
Blank=3
Hopes this helps please mark brainliest
Please help me im desperate
Hey! This assignment is due soon. It is about transversals of parallel lines: name angle pairs. If someone could help that would be great!
Answer:
<HGE and <IJL
Step-by-step explanation:
They are on the outside (exterior) and are alternate angles (form a Z shape).
subtract Mixed Numbers For 100 Points!
Answer:
I think its b
Step-by-step explanation:
The table shows the ratio between the pounds of apples and the total cost:
5 pounds of apples equals 15 dollars, 6 pounds of apples equals 18 dollars, and 7 pounds equals 21 dollars.
Find equivalent ratios when the pounds of apples are 1, 2, and 3. Explain how to plot the equivalent ratios on a coordinate grid from the origin.
The figure shows two lines cut by a transversal. What value of x shows that the lines are parallel? Explain your answer.
Answer-
X=24
Step-by-step explanation-
2x+4 is an alternate angle to the angle opposite on the top left to 5x+8
Which means (2x+4)+(5x+8)=180
So add both together to get
7x+12= 180
Then subtract 12 from 180
7x=168
then divide 168 by 7 to get
X= 24
Eli ran 3/4 of a mile. Every 1/8 of a mile, he jumped over a hurdle. There was a final (extra) hurdle at the end of the 3/4 mile. How many hurdles did he jump over.
Answer:
7
Step-by-step explanation:
3/4 is equivalent to 6/8. He jumped once for every 1/8 mile and there was an extra hurdle at the end.
This assignment is due soon so if someone can help it would be wonderful! It is about triangle Angle-Sun Theorem.
HELP MEEEEE <3
Rewrite 17/40 as a decimal number.
Round 10 7/25 to the nearest whole number.
Rewrite 0.84 as a fraction in lowest terms.
Rewrite 11 5/12 as a decimal number.
Rewrite 5.75 as a mixed number in lowest terms.
Which of the following is closest to?
1
0
1/2
Rewrite 0.007 as a fraction in lowest terms.
Round each mixed number to the nearest whole number and then estimate the difference.
9 5/12 - 3 4/5
Find the elapsed time between 1:28 p.m. and 4:05 p.m.
Find the elapsed time between 7:13 p.m. and 3:45 a.m.
Answer: 0.425 is a decimal number of 17/40 7.25 to the nearest thousands is 0 7.25 to the nearest hundreds is 0 7.25 to the nearest tens is 10 Check and cancel the factors of 84 and 100 if any factors in the numerator and denominator can be cancelled each other:
=(21 x 4)
(25 x 4)
84/100
=21/25
0.84 as a fraction is equal to 21/25
First things first, if you don't know what a numerator and a denominator are in a fraction, we need to recap that: Here's the little secret you can use to instantly transform any fraction to a decimal: Simply divide the numerator by the denominator: That's literally all there is to it! 5/12 as a decimal is 0.41666666666667, but just write 0.4. Next 5.75=
5 75/100
divide top and bottom by 25
5 3/4
0.007 as a Fraction Result: 0.007 as a Fraction equals 7 / 1000. Scroll down for detailed steps on how to convert 0.007 into a fraction.
in simplified form is 18.81. This when rounded to whole number becomes 19.
Similarly, in simplified form is 8.375 and when rounded to nearest whole number, it becomes 8.
Now, the difference will be 19-8=11
Answer: PLEASE GIVE ME BRAINLIEST I WORKED SO HARD ON IT
1. [tex]\frac{17}{40}[/tex] = 0.425
2. [tex]10\frac{7}{25}[/tex] = [tex]\frac{257}{25}[/tex] = 10.28 = 10 (rounded)
3. 0.84 → [tex]\frac{0.84*100}{1*100} = \frac{84}{100}[/tex] = [tex]\frac{21}{25}[/tex] (lowest terms/simplest form)
4. [tex]11\frac{5}{12} = \frac{137}{12}[/tex] = 11.41
5. 5.75 → [tex]\frac{5.75*100}{1*100} = \frac{575}{100}[/tex] = [tex]\frac{23}{4}[/tex] (lowest terms/simplest form)
7. 0.007 → [tex]\frac{0.007*1000}{1*1000} = \frac{7}{1000}[/tex] (lowest terms/simplest form)
8. [tex]9\frac{5}{12}[/tex] - [tex]3\frac{4}{5}[/tex] → [tex]\frac{113}{12} - \frac{19}{5}[/tex] → 9.41 - 3.8 → 9-4 = 5 (the difference)
9. The elapsed time between 1:28 p.m. and 4:05 p.m is 2 hrs & 37 min.
10. The elapsed time between 7:13 p.m. and 3:45 a.m is 8 hrs & 32 min.
In 2020, Forest A had an area of about 4000 acres and Forest B had an area of about 3600 acres. Researchers expect deforestation to cause the area of Forest A to decrease at a rate of 105 acres per decade and the area of Forest B to decrease at a rate of 30 acres per decade. In what year do they expect the areas of the forests to be the same?
Answer:
In about 2073, 3440 acres
Step-by-step explanation:
Determine the equation for each forest. Forest A: y=-105x+4000 Forest B: y=-30x+3600There are a number of ways to solve a system of equations, but for this we are first going to solve for x when -105x+4000=-30x+3600. In this case, x=5 1/3.Then, we are going to plug 5 1/3 in as x into one of our equations. To double check you have this right, you may do both. If our equation is y=-30(5 1/3)+3600, then y=3440.Add 5 1/3 decades or about 53 years to 2020.Therefore, they expect the area of the forests to be the same in about 2073. At this time, both will have an area of about 3440 acres.
In 2073 the areas of the forests to be the same.
What is Equation?Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides. LHS = RHS is a common mathematical formula.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given:
Forest A had an area of about 4000 acres and Forest B had an area of about 3600 acres.
If Forest A to decrease at a rate of 105 acres per decade and the area of Forest B to decrease at a rate of 30 acres per decade.
let the number of decades occur be x
So, the equation is
4000 - 105x= 3600 - 30x
400 = 75 x
x= 5.33
x= 53.3 years
Hence, In 2073 the areas of the forests to be the same.
Learn more about equation here:
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