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
yawa3891 [41]
3 years ago
10

Some friends decide to go to the aquarium together.Each person pays $7.50 to get in.They spend a total of $40 for the shark exhi

bit.The total cost is $70.Solve 7.5x+40=70 to find how many people went to the aquarium.
Mathematics
1 answer:
lilavasa [31]3 years ago
6 0
7.5x+40=70=> 7.5x=30=>x=30/7.5 so x = 4 people
You might be interested in
Simplify the following: <br> 8h – 4g + 5g + 2h
Talja [164]

8h - 4g + 5g + 2h \\  \\ (8h + 2h) -(4g - 5g) \\  \\ 10h - ( - g) \\  \\ 10h + g
5 0
4 years ago
For the choir concert, the choir director has asked that everyone wear either black pants or blue jeans. Three times as many stu
Katyanochek1 [597]

Answer: 33 students wore blue jeans .

Step-by-step explanation:

Let x be the number of black pants.

Given : For the choir concert, the choir director has asked that everyone wear either black pants or blue jeans.

Three times as many students wore black pants as blue jeans.

i.e. Number of blue pants = 4x

If there are forty-four students in the choir, then we have

x+3x=44\\\\\Rightarrow\ 4x=44

Divide both sides by 4 , we get

x=11

Thus , the number of black pants = 11

Then , the number of blue pants = 3\times11=33

Therefore, 33 students wore blue jeans .

6 0
4 years ago
In triangle A B D , the measure of angle A is 10 degree less than the measure of angle B . The measure of angle D is 20 degree m
elixir [45]

Answer:

<u><em>Measure of angle A is 27 7/9 degrees.</em></u>

Step-by-step explanation:

Lets call measure of angle A is <em><u>X-10</u></em>

Lets call measure of angle B is X

Lets call measure of angle D is 2.5X+20

We know that the sum of triangles add up to 180 degrees

X+X-10+2.5X+20=180

X=37 7/9

So measure of angle A is 27 7/9 degrees.

I hope this is right. :)

8 0
3 years ago
Write the explicit formula for the geometric sequence.
netineya [11]
We are given the series of <span>a1 = -5 a2 = 20 a3 = -80. In this case, we can see that this is a geometric sequence with a geometric ratio equal to 20/-5 = -80/ 20 or equal to 4. Hence, r is equal to 4, a1 is equal to -5. 

The geometric sequence formula is an = a1*r^(n-1) = -5 * (-4)^ (n-1) where n is an integer. Answer is B.</span>
8 0
3 years ago
Find how many terms of the following series are needed to make the given sum: 5+8+11+14+...=670?
Fynjy0 [20]
You need 16 more terms not 17 because you already have 4 terms in the series so if you add those 4 terms to the other 16 terms to the series you get a total of 20 terms in total. I hope this helped.
7 0
4 years ago
Read 2 more answers
Other questions:
  • Which of the following side lengths can form a triangle?
    15·2 answers
  • Given the data set (10,45) (25,70) (46,105) what equation represents line of best fit?
    10·1 answer
  • Translate the following phrase below into an algebraic expression:
    6·2 answers
  • What are the measures of ∠1, ∠2, and ∠3? Enter your answers in the boxes.
    13·1 answer
  • How do you write words to match the expression 24-(6+3)
    9·1 answer
  • Which two numbers have an absolute value of 50
    11·1 answer
  • Use the net to find the surface area of the square pyramid
    9·2 answers
  • A figure rests entirely in Quadrant 4. It is rotated 270° counterclockwise about the origin. In which quadrant does its resultin
    13·1 answer
  • Find f (3)for f () = 5* - 12.<br> 3<br> 57<br> 113<br> 125
    9·1 answer
  • Help with this question
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!