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
Verizon [17]
3 years ago
8

the ratio of girls to boys at a school dance was 5:2 if there were 70 girls at the dance, How many boys were at he dance? "use p

roportion and either and equivalent fraction to solve
Mathematics
2 answers:
11Alexandr11 [23.1K]3 years ago
7 0
This is saying that 5/2=70/x in order to solve you make the equation x=70/(5/2) which would be 140/5 or 28 boys
QveST [7]3 years ago
6 0
The answer is 67 because
5-2=3
70:67
67+3=70
You might be interested in
Jermaine is ordering a piece of glass in the shape of a trapezoid to create a patio table top. Each square
galben [10]

Answer:

$400

Step-by-step explanation:

1) we need to find area of trapezoid first

area of trap formula:( (b1+b2)/2)h

b1=5

b2=3

h=4

(5+3)/2=4

4*4=16

there are 16 square feet in thtat trapezoid

hence, 25*16= $400

the glass cost $400

5 0
3 years ago
Find the size of the angle marked a and b on the diagram
Lana71 [14]

Answer:

Step-by-step explanation:

we know that the total angles around the big triangle are 180° so,  we know the right angle is 90° and we are told that one of the angles is 52° so just find the last angle by

180 = 90 + 52 + X

180 - 90 - 52 = X

38 = X

b = 38°

a = 52°

5 0
2 years ago
Read 2 more answers
P(A)=0.36P(B)=0.37P(AandB)=
Simora [160]

Answer:

For the following event probabilities: P(A)=0.36, P(B)=0.37, P(C)=0.27, P(D|A)=0.069, P(D|B)=0.090, P(D|C)=0.076, calculate P(C|D).

Step-by-step explanation:

7 0
2 years ago
A certain forest covers an area of 3600km^2. Suppose that each year this area decreases by 6%. What will the area be after 8 yea
timama [110]

Answer:

= 1728km2

Step-by-step explanation:

From the formula A = PRT/100%

Where; A is final

P is initial

T is time taken

R is the rate

Therefore A = 3600 × (6/100) × 8

= 1728km2

6 0
3 years ago
In a class, 60% of the students are boys and the rest are girls. If the number of boys is 30, how many students are there? ​
irga5000 [103]

50 total students

  • 20 girls

Explanation:

total students: 100%

----------------

  • 60% → 30
  • 1% → 30/60
  • 1% → 0.5
  • 100% → (0.5 * 100)
  • 100% → 50

number of girls:

  • total students - number of boys
  • 50 - 30
  • 20
5 0
2 years ago
Other questions:
  • Consider the matrix
    15·1 answer
  • Which of the following numbers is the smallest
    5·2 answers
  • 2.0 hours and travels 5.0 km what's the average of speed?
    10·1 answer
  • Help with 8!!!!! Plz
    6·1 answer
  • PLEASE HELP DO NOT WASTE ANSWERS FOR GEOMETRY URGENT WILL MARK BRAINLIEST
    7·1 answer
  • Which is NOT a common denominator for 23 and 12 ?<br><br> A. 18<br> B. 12<br> C. 6<br> D. 3
    8·1 answer
  • Please help me <br> 5(-9+1)
    15·2 answers
  • PLEASE HELP!!! DUE TODAY
    10·1 answer
  • The purchase price of a camcorder is ​$648. What is the total price if the sales tax rate is 6.5​%?
    14·1 answer
  • Omg please help! NO LINKS NO FILES PLEASE!
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!