Answer:
yes you can simplify it because both the denominators have common denominator of 15.
Answer:
Yes
Step-by-step explanation:
If the denominators are not the same, then you have to use equivalent fractions which do have a common denominator . To do this, you need to find the least common multiple (LCM) of the two denominators. To add fractions with unlike denominators, rename the fractions with a common denominator. Then add and simplify.
A dance student wants to know the favorite type of dance class for students at The Dance Academy. She surveys each student in her ballet class. In which way could the results of her survey be most improved?
She could sample an equal number of students in each type of dance class.
She could sample a proportional number of students in each type of dance class.
She could sample one student in each type of dance class.
She could sample one teacher from each type of dance class.
Mark this and return
Answer:
A. She could sample an equal number of students in each type of dance class.
Step-by-step explanation:
The answer is A. because all the other ones are not equal, and some are leaned more towards one side.
Hope this helps! :)
Answer:
a
Step-by-step explanation:
test
If x+2y=3 and xy=2 show that x³+8y³+9=0
Step-by-step explanation:
Given
x + 2y = 3 and xy = 2 show that x³ + 8y³ + 9 = 0Solution in steps:
(x + 2y)³ = 3³x³ + 3x²(2y) + 3x(2y)² + (2y)³ = 27x³ + 6x(xy) + 12y(xy) + 8y³ = 27x³ + 8y³ + 6(x + 2y)xy = 27 ⇒ Substitute valuesx³ + 8y³ + 6*3*2 = 27x³ + 8y³ + 36 - 27 = 0x³ + 8y³ + 9 = 0Done
answers for the 2 boxes please :)
Step-by-step explanation:
2x - 3y = 25
+ (5x + 3y = 10)
=> 7x = 35, x = 5.
Therefore 2(5) - 3y = 25, 3y = -15, y = -5.
The solution pair is (5,-5).
Answer:
x = 5
y = -5
so values in boxes = (5, -5)
PLEASE HELP!!! PLZ GEOMETRY
For what value of x would these two equations have the same value? y = 45 + 20x y = 30 + 26x
Answer:
x=2.5 For both equations to be equal.
Step-by-step explanation:
45+20x=30+26x
Subtract 45 from each sides.
20x=-15+26x
Subtract 26x
-6x=-15
x=2.5
Check:
45+20(2.5)=30+26(2.5)
45+50=30+65
95=95 Correct!
Irene is making 30 sundaes with mint, chocolate, and vanilla ice cream. 1 5 of the sundaes are mint ice cream and 1 2 of the remaining sundaes are chocolate. The rest will be vanilla. How many sundaes will be vanilla?
Answer:
3 sundaes will be vanilla.
Step-by-step explanation:
30 - 15 = 15 mint
15 - 12 = 3 vanilla
how to do this helppp ! i need this for my finals
Answer:
9. 168
10.
[tex]3 {x}^{2} - 14x - 24[/tex]
Step-by-step explanation:
on the picture
if it's helpful ❤❤❤
THANK YOU.
What effect did the Balance of Congress have between the free and slave states before the Civil War?
A
The southern states encouraged the new territories to become free states.
B
The southern states were concerned that they would be outnumbered in Congress.
C
Everyone agreed that there should be more representation in Congress for the free states.
Answer:
a:The southern states encouraged the new territories to become free state.
Step-by-step explanation:
A sixth-grade science club needs $180 to pay for the tickets to a science museum. All tickets cost the same amount.
What could 180/15 mean in this context? Describe two interpretations of the expression. Then, find the quotient and explain what it means in each interpretation.
Answer: $12
Step-by-step explanation: Since all the tickets cost the same amount, then 180 which is the dividend means the total amount of money needed by the sixth grade science club
15 is the divisor and it represents the total number of tickets needed
The quotient is $12
So the cost of one ticket is $12.
The new iPhone is originally $1,200.00. For Memorial Day, they have a 35% discount. A sales tax of
8% was applied after the discount. What is the final price of the phone?
Original price of the iPhone = $1200.00
Percentage of discount given for memorial day = 35%
Cost of the iPhone after the discount :
[tex]= 1200 - 35\% \: \: of \: \: 1200[/tex]
[tex] = 1200 - \frac{35}{100} \times 1200[/tex]
[tex] = 1200 - \frac{42000}{100} [/tex]
[tex] = 1200 - 420[/tex]
[tex] =\color{hotpink} \$ \: 680[/tex]
Thus, the price of the iPhone after the discount = $680
Percentage of sales tax applied on the discounted price = 8%
Sales tax :
[tex]= 8\% \: \: of \: \: 1200[/tex]
[tex] = \frac{8}{100} \times 1200[/tex]
[tex] = \frac{9600}{100} [/tex]
[tex] = \color{hotpink}\$ \: 96[/tex]
Sales tax = $96
Price of iPhone after sales tax :
[tex] = 680 - 96[/tex]
[tex] =\bold\color{hotpink} \$ \: 584[/tex]
Therefore, the final price of the phone = $584
What quadrilateral fits the description: side by side angles are supplementary, opposite angles are supplementary, and the measures of two adjacent sides are both 5 inches?
Answer:
10in
Step-by-step explanation:
t multiplied 3/4 for t= 8/9
Answer: 2/3 or 0.6
Step-by-step explanation:
PLEASE HELP THIS IS DUE REALLY SOON!!
Hold on, our servers are swamped. Wait for your answer to fully load
Step-by-step explanation:
Last week Amy ran 23.5 miles less thanEduardo. Amy ran 12.3 miles. Howmany miles did Eduardo run?
Answer:
Eduardo ran 35.8 miles
Step-by-step explanation:
Help plz :(
The relationship between the number of cups of water, w, and the number of cups of
lemon juice, j, used in a recipe is described by the equation shown.
j = 2w
How many cups of water are needed for each cup of lemon juice?
Show your work.
Answer:
Step-by-step explanation:
The relationship between the number of cups of water, w, and the number of cups of
lemon juice, j, used in a recipe is described by the equation shown.
j = 2w
To evaluate the number of cups pr cup of juice, find the value of w given j=1
1=2w
w=1/2
iHalf a cup of water is needed for each cup of lemeonce ju
Which of the following represents the equation of a line with a slope of -3 and a y-intercept of 3? Group of answer choices y = 3x -3 y = 3x +3 y = -3x+3 y = -3x-3
Answer:
y = 3x +3 y
Step-by-step explanation:
is 2 for the price of one better than 3 for the price of two?
Step-by-step explanation: 2 for the price of 1 because if you did that x3 it would be 6 for the price of 3 but if you did 3 for the price of 2 it would be 4 for the price of 6.
can someone help me with this question?
Answer:
The answer is D
Hope this helps :)
Your answer would be D. 6/11
does anyone know how to do this ?
Answer: D) 32
Step-by-step explanation:
The area of a parallelogram equals its base times its height. Substitute the base and area into this formula to solve for the height:
A=bh
40=(5)(h)
h=8
If ABCD is a parallelogram, opposite sides are parallel, so AB is parallel to DC. If AB is parallel to DC, EB is parallel to DC. Since EB is parallel to DC, quadrilateral EBCD has at least one pair of parallel sides, making it a trapezoid. The area of a trapezoid is equal to [tex]\frac{h(b_{1}+b_{2}) }{2}[/tex] where h is the height, [tex]b_{1}[/tex] is one base, and [tex]b_{2}[/tex] is the other base. Plug the necessary values into the formula:
A=[tex]\frac{h(b_{1}+b_{2}) }{2}[/tex]
[tex]b_{1} =AB-AE\\DC=AB\\b_{1} =DC-AE\\b_{1} =5-2\\b_{1} =3[/tex]
[tex]b_{2} =5[/tex]
h=8
A=[tex]\frac{8(3+5)}{2}[/tex]
A=32
The answer is D) 32.
What is the 5th term in the geometric sequence described by this explicit
formula?
an = 40 • (-2)(n-1)
A. -1280
O B. -640
C. 1280
O
D. 640
Answer:
C.
Step-by-step explanation:
gn... plz mark brainliest
Answer:
D. 640Step-by-step explanation:
Given GP:
aₙ = 40 * (-2)ⁿ⁻¹Finding the 5th term:
a₅ = 40* (-2)⁵⁻¹ = 40 * (-2)⁴ = 40*16 = 640Correct option is D
Louis has three more quarters than dimes for a total of $1.80. What equation can you use to determine how many dimes,x, in his pocket.
0.10x + 0.25(x + 3) = 1.80
Answer:
He has 6 quarters equaling $1.50 and 3 dimes equaling $0.30 which totals $1.80 altogether. Also explains the 3 more quarters than dimes
Question 13 40 of the cats at the pet store are black, which is 25% of all of the cats. How many cats are there at the pet store?
Answer:
There is a You tube video explaining step by step how to do this
Step-by-step explanation:
Answer:
its 10
Step-by-step explanation:
What is the slope of the line represented by the equation y=-1/2x + 1/4
3) Two of these numbers are the same value, which ones are
they? 40%, .44, 14, .04, 4/10?
Answer:
40% and 4/10
Step-by-step explanation:
If you convert them into decimals, they will both give the same decimals which gives 0.4
AC = AD, AC = 5x + 1, AD = 7x - 27, CD = 3x - 4, find x and the measure of each side.
Answer:
x = 14
m∠A = 38°
m∠C = 71°
m∠D = 71°
Step-by-step explanation:
Answer:
AC=AD=71, CD=38
Step-by-step explanation:
AC=AD
5x+1=7x-27
2x=28
x=14
AC=5*14+1=71=AD
CD=3*14-4=38
Based on the figure below, select all statements that apply.
a
b
B
A
с
tan A = tan C
sin A = cos B
sin A = cos C
sin C = cos A
a
sin A = -
с
sin C
Answer:
sinA=a/c
is only a required answer
PLEASEEE FAST ASAP!!
10 is a factor and 40 is a multiple of 20 . similarly, 8 is a factor and 96 is a multiple of another number . which of these could be the number ?
a. 4
b.40
c.32
d.192
Answer:C is the answer
Step-by-step explanation:
It's 4 because 96 is equal to 4 if you x's 4 x 24 you get 96 I hope this helps
1 can you give me brainiest only need 3 to level up... whats the answer to 2*4*8-21
43 is you answer
Step-by-step explanation:
2x4 is 8. 8x8 is 64 and 64-21 is 43
Can someone please explain how simplify (step by step)[tex]\sqrt[3]{-162}[/tex]
Answer:
-5.451
Step-by-step explanation:
[tex]\sqrt[3]{-162}[/tex] This problem is asking for the cube root of (-162). The cube root function is, what number times itself 3 times equals the number under the radical sign. The answer to this is, approximately -5.451 .
Plz help me with my homework plz
Answer:
16 oz, 15.3 oz, 9oz
Step-by-step explanation:
these are the highest to lowest in price write in the form of oz.
