Answer:
He sold 10 hangers and 10 neclesses
Step-by-step explanation:
Given data
Let the number of door hanger be x
and the number of neckless be y
so
x+y= 20---------1
also,
2.25x+3.75y= 60---------2
Solve 1 and 2 together
From 1
x= 20-y
put this in place of x in 2
2.25(20-y)+3.75y= 60
45-2.25y+3.75y= 60
1.5y= 60-45
1.5y= 15
y= 15/1.5
y= 10
Put y= 10 in 1
x+10= 20
x= 20-10
x= 10
What’s the answer? To this I don’t get it help
Answer:
2
Step-by-step explanation:
Hey There!
When it ask for the scale factor its asking for what did you have to multiply the side length by of figure a to get the similar side length of figure b
for example in figure A the base length is 7
to get the the base length of figure B (14) they multiplied the base length of figure A by 2
7x2=14
therefore the scale factor is 2
Given the following exponential function, identify whether the change represents growth or decay, and determine the percentage rate of increase or decrease. y=38(1.108)^x
Step-by-step explanation:
We are given this function:
y=8700* (1.04)^{4}y=8700∗(1.04)
4
8700 is the initial amount.
1.04 shows the change of original amount. This is decimal form of percentage. We need to transform it into regular percentage.
1.04 * 100% = 104%
Now we observe this number. If it is greater than 100% we have growth, if it is lower than 100% it is decay, and if it is equal to 100% than there is no change.
In our case this number is greater than 100% so we have growth. To determine the percentage rate we must substract 100% as it represents the original amount.
104% - 100% = 4%
This would be our solution if we don't have an exponent.
We have exponent so first step is to calculate the number and then we repeat the steps from above.
1.04^{4} = 1,169858561.04
4
=1,16985856
1,16985856 * 100% ≈ 116,99%
116.99% - 100% = 16.99%
So, final solution is growth of 16.99%
We are given this function:
y=8700* (1.04)^{4}y=8700∗(1.04)
4
8700 is the initial amount.
1.04 shows the change of original amount. This is decimal form of percentage. We need to transform it into regular percentage.
1.04 * 100% = 104%
Now we observe this number. If it is greater than 100% we have growth, if it is lower than 100% it is decay, and if it is equal to 100% than there is no change.
In our case this number is greater than 100% so we have growth. To determine the percentage rate we must substract 100% as it represents the original amount.
104% - 100% = 4
This would be our solution if we don't have an exponent.
We have exponent so first step is to calculate the number and then we repeat the steps from above.
1.04^{4} = 1,169858561.04
4
=1,16985856
1,16985856 * 100% ≈ 116,99%
116.99% - 100% = 16.99%
So, final solution is growth of 16.99%
What is the value of x in the figure?
Answer:
x = 27
Step-by-step explanation:
The little square at the bottom of the figure means that that angle is a right angle, or 90°. Knowing that it's a 90° angle and that one section of the adjacent angle is 63°, we just calculate 90-63 to get 27, the value of x.
A line passes through the points (0, 2) and (1, 6). What is its equation in slope-intercept form?
Answer:
y=4x+2
Step-by-step explanation:
m=(y2-y1)/(x2-x1)
m=(6-2)/(1-0)
m=4/1
m=4
y-y1=m(x-x1)
y-2=4(x-0)
y-2=4x
y=4x+2
Please s helppppppo!!!!
Answer:
22
Step-by-step explanation:
Hey There!
So if you didn't know angle H is a right angle. So we are given two angles and they want us to find the missing angle
Remember all of the angles of a triangle add up to equal 180
so we subtract the given angles from 180 to find the missing angle
180-90-68=22
so we can conclude that angle G = 22
HELP ME PLZZ I NEED HELP WITH THIS
Answer:
25 + 11 hope this helps
Step-by-step explanation:
answer is the third one
Which graph represents the system of equations?
y = 2.2
y=x2 + 1
n is an integer
write the values of n such that -15<3n<_6
-15<3n<-6 ÷3 → -5<n<-2
n = -4 , -3
3/4 (x +21) = 10 1/2
What does x equal?
Answer:
[tex] \huge \boxed{ \boxed{ \red{x = - 7}}}[/tex]
Step-by-step explanation:
to understand thisyou need to know about:equationPEMDASlet's solve:[tex] \sf distribute : \\ \frac{3 x+ 63}{4} = 10\frac{1}{2} [/tex][tex] \sf simplify \: mixed \: fraction : \\ \frac{3x + 63}{4} = \frac{21}{2} [/tex][tex] \sf cross \: multipication : \\ 2(3x + 63) = 84[/tex][tex] \sf distribute \: 2 : \\ 6x + 126 = 84[/tex][tex] \sf cancel \: 126 \: from \: both \: sides : \\ 6x + 126 - 126 = 84 - 126 \\ 6x = - 42[/tex][tex] \sf divide \: both \: sides \: by \: 6 : \\ \frac{6x}{6} = \frac{ - 42}{6} \\ \bcancel{\frac{6x}{6} } = \frac{ \cancel{ - 42} \: ^{ - 7} }{ \cancel{ \: 6}} \\ \therefore \: x = - 7[/tex]Step-by-step explanation:
Solution given;
[tex] \frac{3}{4} (x + 21) = 10 \frac{1}{2 } \\ 3x + 63 = \frac{21}{2} \times 4 \\ 3x = 42 - 63 \\ x = \frac{ - 21}{3} \\ x = - 7[/tex]
:.x=-7 is your answer.
12= 3x X 6 what is the valu of the x ?
Answer:
x = 2/3
Step-by-step explanation:
I could not type the answer out but I took a picture of it.
Hope this helps you!
5m^2+17m+15 factor the trinomial completely
Help. Best=brainliest
Please, if anyone knows help me, I need a lot of help in this activity.
Answer:
Step-by-step explanation:
Perimeter of the given polygon = n + 2 + 3 + 4 + n + 2 + 3 + 4
= 2(n + 2 + 3 + 4)
= 2(n + 9) units
Area of the composite figure = Area of rectangle A + Area of rectangle B + Area of rectangle C
= (3 × 4) + (n ×2) + (2 × 3)
= 12 + 2n + 6
= 2n + 18
= 2(n + 9) units²
Therefore, perimeter of the given figure = Area of the figure
Trista needed x number of cups
of flour to bake cupcakes. If she
triples her recipe she will need
6 cups of flour.
Answer:
x = 2
Step-by-step explanation:
x * 3 = 6 → is your equation to solve for x
x = [tex]\frac{6}{3}[/tex]
x = 2
Dragonflies today have a wingspan of 6 inches. The ancestors of the dragonfly had a wingpan 5 times greater. How long was the wingspan of the dragonfly's ancestors?
Each side of the square base is 5 inches long and the height of the pyramid is 5 inches. Approximately how much wood is in the pyramid?
Answer: [tex]41.67\ in.^3[/tex]
Step-by-step explanation:
Given
The side of the square base is 5 inches
height of the pyramid is 5 inches
The volume of a square pyramid is
[tex]V=\dfrac{1}{3}a^2h[/tex]
Putting the values
[tex]\Rightarrow V=\dfrac{1}{3}\times 5^2\times 5\\\\\Rightarrow V=41.67\ in.^3[/tex]
The pyramid contains [tex]41.67\ in.^3[/tex] of wood
the table shows the results of a class survey About pets. suppose 53 students were surveyed. about how many students have one pet? Justify your answer.
Answer:
26.5
Step-by-step explanation:
The table shows that 1/2 of all the students surveyed have one pet.
[tex]53 \times \frac{1}{2} = 26.5[/tex]
Help me please this is too hard for me
Answer:
look at the picture i sent please
How do I solve this problem? Thank you.
i really really need your help asap due today
Answer:
25
Step-by-step explanation:
Estimate the quotient 488.8 ÷ 48
A school committee needs 2 more students. How many ways can the committee be selected from a group of 10 students? 45 90 20 100
Answer:
45 ways
Step-by-step explanation:
The number of ways the committee of 2 can be selected from a group of 10 may be found using the combination theory.
10 C 2
Recall that n C r = n!/(n-r)!r!
Hence
10 C 2 = 10!/(10 -2)!2!
= 10!/8!*2!
= 10 *9 *8!/8!* 2!
= 10 *9/2 * 1
= 90/2
= 45
Answer:
45
Step-by-step explanation:
got it right on test
Note: Enter your answer and show all the steps that you use to solve this problem in the space provided.
The diagram below shows the contents of a jar from which you select marbles at random.
An illustration of a jar of marbles is shown. Four of the marbles are labeled with an upper R, seven of the marbles are labeled with an upper B, and five of the marbles are labeled with an upper G. The key identifies upper R to represent red marbles, upper B to represent blue marbles, and upper G to represent green marbles.
What is the probability of selecting a red marble, replacing it, and then selecting a blue marble? Show your work.
What is the probability of selecting a red marble, setting it aside, and then selecting a blue marble? Show your work.
Are the answers to parts (a) and (b) the same? Why or why not?
Answer:
A:
probability of red = 4/16 = 1/4
prob(blue) = 7/16
probability of red, then blue is (1/4)(7/16) = 7/64
B:
probability red = 1/4
probability blue = 7/15
probability of red, then blue = (1/4)(7/15) = 7/60
c) your decision
Step-by-step explanation:
i took the test
The solution is,
A. 7/64 is the probability of selecting a red marble, replacing it, and then selecting a blue marble.
B. 7/60 is the probability of selecting a red marble, setting it aside, and then selecting a blue marble.
C. the answer is no.
What is probability?Probability can be defined as the ratio of the number of favorable outcomes to the total number of outcomes of an event.
here, we have,
given,
There are 4 red marbles.
There are 7 blue marbles.
There are 5 green marbles.
There are 16 marbles in total.
A:
Answer = (probability of selecting a red marble)(probability of selecting a blue marble)
First, the probability of selecting a red marble.
probability of red = 4/16 = 1/4
probability(blue) = 7/16
probability of red, then blue is (1/4)(7/16) = 7/64
B:
Answer = (probability of selecting a red marble)(probability of selecting a blue marble)
First, the probability of selecting a red marble.
probability red = 1/4
probability blue = 7/15
probability of red, then blue = (1/4)(7/15) = 7/60
c) obviously,
7/64 ≠ 7/60
So the answer is no.
To learn more on probability click:
brainly.com/question/11234923
#SPJ3
What is the area of this shape please answer now.
Answer:
118 cm
Step-by-step explanation:
13 x 11 = 143
5 x 5 = 25
143 - 25 = 118
|x-2| if x >5
Plz help
Answer:
3
Step-by-step explanation:
find the inequality represented by the graph
Answer: y>(1/3)x-3
Step-by-step explanation: The slope is 1/3. The dotted line means it is not inclusive, and the value of k means it is going down three units.
The price of a house increased from $500,000 to $600,000 in one year. what is the percent increase?
I don’t understand this. Help me please
we want to find the zeros for this polynomial: p(x) = 5x^3 - 5x^2 - 10x
Answer:
x= 0, 2, -1
Step-by-step explanation:
In ΔQRS, the measure of ∠S=90°, the measure of ∠Q=31°, and RS = 27 feet. Find the length of SQ to the nearest tenth of a foot.
Answer:
44.9
Step-by-step explanation:
