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juin [17]
3 years ago
14

111 Thirty dollars is to be divided among three girls and two boys so that each of the girls receives twice as much as each of t

he boys. How much does each receive?
Mathematics
1 answer:
julia-pushkina [17]3 years ago
7 0

Answer:

Each boy receive $3.75 and Each girl receive  $7.5

Step-by-step explanation:

Given : Thirty dollars is to be divided among three girls and two boys so that each of the girls receives twice as much as each of the boys.

To Find:  How much does each receive?

Solution :

Let each boy gets $x

Since we are given that each of the girls receives twice as much as each of the boys

So, each girl receive amount = 2x

Since there are 3 girls .

So, 3 girls received the amount = 3*(2x)=6x

Now each boy gets x amount

So, 2 boys get amount = 2*x =2x

Since thirty dollars are divided among them .

So, 6x+2x=30

8x=30

x=\frac{30}{8}

x=3.75

Thus each boy gets $3.75

Each girl receive amount = 2x = 2*3.75= $7.5

Hence Each boy receive $3.75 and Each girl receive  $7.5

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artcher [175]
The correct answer is B
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3 years ago
The population of a certain type of seahorse grew by 13% from year to year.
Gekata [30.6K]

Answer:  Exponential function

Step-by-step explanation:

A linear function is the formf(x)=mx+c , where m is the constant rate of change of y with respect to x and c is the y-intercept.

An exponential growth function is in the form f(x)=A(1+r)^x, where r is the rate of growth (generally in percent) and A is initial value.

If the population of a certain type of seahorse grew by 13% from year to year, then the rate of growth is 13% .

Hence it is an exponential equation.

7 0
3 years ago
Does anyone know what to fill in?
riadik2000 [5.3K]

Answer:

$36.69

Step-by-step explanation:

Okay, so let's first write the equation:

2.59*10 + 3d = 135.97

Now, let's work on isolating d by first simplifying the equation:

25.9 + 3d = 135.97

25.9 + 3d - 25.9 = 135.97 - 25.9

3d = 110.07

3d/3 = 110.07/3

d = 36.69

Okay, now let's check:

2.59*10 + 3*36.69  = 135.97

25.9 + 110.07 = 135.97

135.97 = 135.97

Okay, so so it costs $36.69 per pair of shoe.

4 0
3 years ago
An object is launched from a launching pad 208 ft. above the ground at a velocity of 192ft/sec. what is the maximum height reach
Alexeev081 [22]

Answer:

h(x) = -16x² + 192x + 208

784ft

6 sec

13 sec

Step-by-step explanation:

a)

h(x) = -16x² +vx + h_{o}

here v represent velocity

         h_{o} represent initial height of launch

       

h(x) = -16x² + 192x + 208

b)

h(x) = -16x² + 192x + 208

here a = -16

        b = 192

        c = 208

x = -b/2a

  = -192/2(-16)

  = 6

plug this value in the equation

h(x) = -16(6)² + 192(6) + 208

      = 784ft

e)

Plug h(x)=0 in the equation

0 = -16x² + 192x + 208

divide equation by -16

x² - 12x - 13 = 0

Factors

1x * -13x = -13

1x - 13x = -12

Factorised form

x² - 12x - 13 = 0

x² + x - 13x - 13 = 0

x(x+1) -13(x+1) = 0

(x+1)(x-13) = 0

x = -1

x = 13

Since time can not be negative so we will reject x = -1  

3 0
3 years ago
You earned $75.70. You would like to buy some new T-shirts. Estimate the number of T-shirts you can buy if each one costs $10.80
Alex787 [66]
the answer is 7 t-shirts

divide 75.70 by 10.80

hope this helped :)
4 0
3 years ago
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