1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
trasher [3.6K]
3 years ago
12

the seventh and eighth grade bands held a joint concert. together there was 188 band members. if the eight grade band is 3 times

as big as the seventh grade band, how big is the eight grade
Mathematics
2 answers:
Montano1993 [528]3 years ago
4 0
8th grade = 3x = 3(47) = 141 band members.

7th + 8th = 188

7th = x
8th = 3x

x + 3x = 188    ; x = 47 ;  47 + 3(47) = 47 + 141 = 188
4x = 188
4x / 4 = 188 / 4
x = 47 --> 7th grade

8th grade = 3x = 3(47) = 141

To check:
x + 3x = 188    ; x = 47 ;
47 + 3(47) = 188
47 + 141 = 188
188 = 188



Ipatiy [6.2K]3 years ago
4 0
Let the size of the seventh grade band be s
That means the size of the eighth grade band must be 3s because it is 3 times as big as the seventh grade band.
Combined, the two bands have 188 members.
3s and s combined is 4s. Thus 4s must equal 188.

4s = 188
s= 47
3s = 141

The eighth grade band has 141 members.
You might be interested in
Activity
hodyreva [135]

Answer:

The answers to each part are:

Part A.

  • <u>The quantity of apples is one-third of the quantity of grapes</u>.

Part B.

  • <u>The quantity of apples is a quarter of the quantity of strawberries</u>.

Part C.

  • <u>The number of cherries is two-elevenths of the total fruit</u>.

Step-by-step explanation:

To identify the answer in each case, you must remember that all the parts are equal, then:

Part A.

The parts of apples are 1 and the parts grapes are 3, so if you divide the first quantity with the second quantity you obtain:

  • 1 / 3 = 1/3 (one-third)

So, <u>the quantity of apples is one-third of the quantity of grapes</u> or the quantity of apples is three times smaller than the quantity of grapes.

Part B.

The parts of apples are 1 and the parts of strawberries are 4, then you must divide the first quantity with the second quantity:

  • 1 / 4 = 1/4 (a quarter)

In this case, <u>the quantity of apples is a quarter of the quantity of strawberries</u> or the quantity of apples is four times smaller than the quantity of strawberries.

Part C.

First, you must add all the part of fruit:

  • <em>1 part apple</em>
  • <em>1 part orange</em>
  • <em>4 parts strawberry</em>
  • <em>2 parts cherry </em>
  • <em>3 parts grape</em>

The total of fruits is 11 parts, taking into account the quantity of cherries is 2, now you can divide the number of cherries with the total parts of fruit:

  • 2 / 11 = 2/11 (two-elevenths)

Now, you can see <u>the number of cherries is two-elevenths of the total fruit</u>.

3 0
3 years ago
Given a function where one x-intercept of a parabola is (-4,0), what will be the new x-intercept if h is increased by 6?
Ilia_Sergeevich [38]

the answer to your question is 2


5 0
3 years ago
This is important please help
Leya [2.2K]

Answer: C

<u>Step-by-step explanation:</u>

∑ 8(\frac{7}{3})⁽ⁿ⁻¹⁾ from n = 1 to n = 5

n = 1 → 8(\frac{7}{3})⁽¹⁻¹⁾

        = 8                                         = \frac{648}{81}

n = 2 → 8(\frac{7}{3})⁽²⁻¹⁾

         = \frac{56}{3}                                         = \frac{1512}{81}    

n = 3 → 8(\frac{7}{3})⁽³⁻¹⁾

          = \frac{392}{9}                                     = \frac{3528}{81}

n = 4 → 8(\frac{7}{3})⁽⁴⁻¹⁾

          = \frac{2744}{27}                                 = \frac{8232}{81}

n = 5 → 8(\frac{7}{3})⁽⁵⁻¹⁾

          = \frac{19208}{81}                                = \frac{19208}{81}

                                                                            Sum = \frac{33128}{81}

                                                                                    = 408.99

     

6 0
3 years ago
Ahh I’m dumb, but I need help please!
andreev551 [17]

Answer:

Derik finished first

Step-by-step explanation:

Derik = 35 1/6 = 35.10

other girl = 35.25

3 0
3 years ago
Read 2 more answers
you eat one slice of a pizza that is cut into 8 even slices. What is the amount you ate written as a decimal
4vir4ik [10]
In order to change a fraction into a decimal you must divide the numerator by the decimal so divide 1 by 8 and so as you go through the equation you get a decimal number because 8 cannot go into 1 of course. 

Answer: 0.125 is the amount you ate in decimal form 
4 0
3 years ago
Read 2 more answers
Other questions:
  • What is the answer to 6(x+1)-5x=8+2(x-1)
    15·1 answer
  • Please help w qn 4,, thankyou
    5·1 answer
  • The net of a cube is made up of five squares. true or false
    9·1 answer
  • Ax^2+bx+c=0, where a,b,and c are rational numbers and the quadratic has two distinct zeros
    9·1 answer
  • Write equations for the vertical and horizontal lines passing through the point (8,-9)
    8·1 answer
  • A bag of 12 ounces of popcorn costs $4.80. What is the unit rate? (in others words what is the cost for one ounce) *​
    11·2 answers
  • Last year, Emma's scout troop sold 504 boxes of cookies. This year, her troop set a goal to sell more boxes than last year.
    11·1 answer
  • 2x + y = -8<br> 3x - 5y = -25<br><br> It’s substitution
    11·1 answer
  • In a long-jump competition, Connor jumped 160 centimetres.
    11·1 answer
  • Show how to compute 3+5 using a number line
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!