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
neonofarm [45]
3 years ago
11

the ratio of boys to girls in a classroom is 7:5 4 boys are added to the class the ratio is now 1:1 find the total number of gir

ls in the class
Mathematics
1 answer:
OLEGan [10]3 years ago
7 0

Answer:

14

Step-by-step explanation:

7/5. = x/ x- 4 (the ratio to each other is the same)

cross multiply

7x-28 = 5x

simplified: -2x = -28

divide x and -28 by -2

x= 14

x= # of girls

You might be interested in
2−6(−5t+1) <br><br><br><br><br> PLEASE HELP!
kotykmax [81]

Answer:

-4+30t

Step-by-step explanation:

2-6(-5t+1)

2+6*5t-6

2+30t-6

-4+30t

7 0
3 years ago
You lend out S5500 at 10% compounded monthly. If the debt is repaid in 18 months, what is the total owed at the time of repaymen
GrogVix [38]

Answer:

$6386.1140

Step-by-step explanation:

Using the compound interest formula :

A = P(1 + r/n) ^nt

P 5500 ; rate, r = 10% = 0.10 ; t = 18 months = 18/12 = 1.5 years,

Compounding times per period = 12 (monthly)

A = 5500(1 + 0.1/12)^12*1.5

A = 5500(1 + 0.0083333)^18

A = 5500(1.0083333)^18

A = 5500 * 1.1611116

A = 6386.1140

Hence, amount to be repaid = $6386.1140

8 0
3 years ago
How do i solve (x+3)^1/2=(3x+7)^1/4
deff fn [24]
Step 1: Cross-multiply.
(x+3)^1/2=(3x+7)^1/4
Step 2: Subtract 6x from both sides.
4x+12−6x=6x+14−6x
−2x+12=14
Step 3: Subtract 12 from both sides.
−2x+12−12=14−12
−2x=2
Step 4: Divide both sides by -2.
−2x/−2=2/−2

Answer:
x=−1
6 0
4 years ago
Assume that a simple random sample has been selected from a normally distributed population and test the given claim. Use either
Brrunno [24]

Answer:

i think its B or C most likely C

Step-by-step explanation:

5 0
2 years ago
When comparing functions, such as Seth’s scenarios for travelling to school, will the function with the greatest initial value c
True [87]

Answer:

It will depend whether is function time dependent or not.

Step-by-step explanation:

If the function is time dependent, the function with greatest initial values continue to be greatest as time increases.

4 0
4 years ago
Read 2 more answers
Other questions:
  • What is the value of p in the equation p−18=38 ?
    7·2 answers
  • Help wanted pls math
    5·2 answers
  • Represent the given condition using a single​ variable, x. Three consecutive odd integers.
    13·1 answer
  • Help meh fvghdbskjwdjcbhfvdcbjskalm
    15·1 answer
  • Geometry Angles question 4, Thanks if you help
    12·1 answer
  • I'm stuck in this question and need some help for this. Thank you
    12·2 answers
  • Explain your answer !! <br> Have a nice day <br><br> Will give braisnlt
    14·1 answer
  • Maria has a business designing and making custom T-shirts. Her cost for materials, in thousands of dollars, is given by M(t)=−3
    7·1 answer
  • F(x) = 3. 7 – 2x g(x) = 0. 25x – 5 What is f(x) g(x)? h(x) = 3. 95x – 7 h(x) = 8. 7 – 2. 25x h(x) = –1. 3 – 1. 75x h(x) = 3. 95
    8·1 answer
  • At a concert for the band Algal Rhythms, 75% of the tickets were sold at the full price of 30. The remaining 25% of tickets were
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!