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
k0ka [10]
3 years ago
15

The ratio of boys to girls in my class is 3:4. If there are 12 boys, how many girls are

Mathematics
2 answers:
Scorpion4ik [409]3 years ago
8 0

Answer: 16 girls

Step-by-step explanation:

Number of girls = x

3:4 = 12:x

= 3/4 = 12/x

cross multiply:

4 x 12 / 3 = 16

so there are 16 girls in the class.

Hope this helps :)

bija089 [108]3 years ago
6 0

Answer:

9 girls

Step-by-step explanation:

12/4=3 boys

Multiple 3x3 to get the 9 girls

You might be interested in
Use the model to solve for x.
nadezda [96]
Your answer is C) x=8
4 0
2 years ago
Ben and winston ade both selling cookie dough for a fundraiser. Although ben has already sold 10tubs, Winston 
gulaghasi [49]

Answer:

Step-by-step explanation:

On the first day, Ben (B) starts with 10 tubs and Winston (W) starts with 0 tubs.

After the first day, Ben sells 8 tubs per day while Winston sells 9 tubs per day.

Therefore we can write the following equation:  (Where d = number of days)

B = 10 + 8d

W = 0 + 9d = 9d

We are told that eventually they will sell the same amount which means

B = W

This means we can say,

10 + 8d = 9d

If we subtract 8d from both sides we get

10 = d

Therefore it will take 10 days for them to sell the same amount of cookie dough.

5 0
2 years ago
Read 2 more answers
Francesca bought a rectangular piece of fabric that is 2/3 yard long and 3/4 yard wide. What is the area, in square yards, of th
ollegr [7]

Answer:

area \:  = length  \times width \\  =  \frac{2}{3} \times  \frac{3}{4}  \\  =  \frac{(2 \times 3)}{(3 \times 4)}   \\ =  \frac{6}{12}  \\ area =  \frac{1}{2} square \: yards

6 0
3 years ago
The National Science Organization is monitoring the continuous exponential decline of an insect species due to deforestation. Th
kakasveta [241]

Answer:

P\geq 26e^{-0.079t}

P\geq 2

Step-by-step explanation:

We are given that there is an exponential decay.

Also, the decrease is of constant rate 7.9% i.e. 0.079 each year.

Since, the initial amount of the species is atleast 26 million.

Thus, the inequality for the corresponding model will be, P\geq 26e^{-0.079t},

where t is the time period for the decay and P is the population.

Moreover, is is given that the population cannot be less than 2 million.

So, we get, P\geq 2.

Hence, the inequalities to determine the possible number of insects over time are given by,

P\geq 26e^{-0.079t}

P\geq 2.

4 0
3 years ago
a square is put together by two triangles. the hypotenuse is 11 cm and width if 8 cm. find the height of the triangle.
maksim [4K]

Answer:

b ≈ 7.54 cm

Step-by-step explanation:

Pythagorean Theorem

a² + b² = c²

a and b are the sides and c is the hypotenuse

hypotenuse is 11 cm

a side is 8 cm

so

8² + b² = 11²

64 + b² = 121

-64           -64

       b² =  57

    √b² =  √57

       b ≈ 7.54 cm ( use ≈ because its rounded so its not exact)

3 0
3 years ago
Other questions:
  • Reniel saves 30% of every payback. His paycheck last week was $560. How much did Reniel save last week?
    13·1 answer
  • The height of the parallelogram, h, can be found by dividing the area by the length of the base. If the area of the parallelogra
    13·2 answers
  • Katherine and her children went into a bakery and where they sell cupcakes for $2.50 each and donuts for $1.25 each. Katherine h
    13·1 answer
  • An object that starts at rest accelerates until it is moving at 247 km/h. If it takes 1.7 minutes for this change to occur what
    7·1 answer
  • Rs = 8y + 4 , ST = 4y + 8 , and RT = 36 , find the value of y
    12·1 answer
  • 4. In a large community, 72% of the people are adults, 78% of the people have traveled outside the state, and 11% are adults who
    15·1 answer
  • What is the least common denominator of 3/20 and 9/40?
    8·2 answers
  • There can be more then one answer
    5·1 answer
  • QUICK HELP ITS DUE IN 10 EEEEEEEEEEE
    8·1 answer
  • Louis owns a rectangular piece of property with an area of 1 3 4 square miles. The length of the property is 2 1 3 miles. What i
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!