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-BARSIC- [3]
3 years ago
5

Noah picked 3 kg of cherries. Mai picked half as many cherries as Noah. How many total kg of cherries did Mai and Noah pick?

Mathematics
1 answer:
insens350 [35]3 years ago
5 0

Answer:

<h2>They picked 4 and one half kilograms of cherries.</h2>

Step-by-step explanation:

<h3>We know that:</h3>

Cherries picked by Noah: 3kg

Cherries picked by Mai: \frac{3}{2}kg, because she picked half as many cherries as Noah.

Therefore, the total number of cherries would be the sum of Noah's cherries and Mai's cherries:

3kg+\frac{3}{2}kg= \frac{9}{2} kg = 4.5 kg

So, they picked 4 and one half kilograms of cherries.

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What is 8 divided by 3/5
vodomira [7]

Answer:

13 1/3. have a great day!! :D

Step-by-step explanation:

To solve the equation, you first need to multiply 8 by 3/5's reciprocal, which is 5/3. Reciprocal basically means to flip the fraction. By multiplying 8 by 5/3 you'll get 40/3, which you can simplify to 13 1/3.

4 0
3 years ago
Does the equation 1/2(2x + 4) = x + 3 have infinitely many solutions? Does it have exactly one solution?
prohojiy [21]

Answer:

it doesnt have solution

Step-by-step explanation:

1/2(2x + 4) = x + 3

x+2=x+3

x-x=3-2

0≠1

6 0
3 years ago
A fence is to be built to enclose a rectangular area of 240 square feet. The fence along three sides is to be made of material t
aniked [119]

Answer:

18.97 \text{ and }12.65\text{ft}

Step-by-step explanation:

GIVEN: A fence is to be built to enclose a rectangular area of 240 square feet. The fence along three sides is to be made of material that costs 6 dollars per foot, and the material for the fourth side costs 12 dollars per foot.

TO FIND: Find the dimensions of the enclosure that is most economical to construct.

SOLUTION:

Area of rectangular fence =240\text{ sq. ft}

let the length of fence =x

let the width of fence =y

let x be the smaller side

Area of rectangular fence enclosure =xy

xy=240

y=\frac{240}{x}

cost of fence along three sides =6 \text{ dollars per feet}

cost of fence along fourth side =12 \text{ dollars per feet}

length of fence =2x+2y

cost of fence building =6(2x+y)+12y

                                     =12x+18y

putting value of y

                                     =12x+18\times\frac{240}{x}

                                     =12x+4320x^{-1}

to find minimum value differentiating the equation

                                   12-\frac{4320}{x^{2} }=0

                                   x^{2} =\frac{4320}{12}

                                   x^{2} =360

                                   x=18.97\text{ft}

                                   y=12.65\text{ft}

Hence the dimensions of the enclosure that is most economical to construct are 18.97\text{ft} and 12.65\text{ft}

8 0
3 years ago
What is the perimeter of the trapezoid?<br> units.
IrinaVladis [17]

Answer:

<h2>20 units</h2><h2></h2>

Step-by-step explanation:

perimeter of the given trapezoid = 7 + 4 + 4 + 5

                                                      = 20 units

                                             (see image below)

                                                     

4 0
3 years ago
use the substitution method to solve the system of equations . choose the correct ordered pairs x+y=5 y=7 A.(12,7) B.(-12,7) C.
Alex

Answer:

<em>C. (-2, 7)</em>

Step-by-step explanation:

Put y = 7 to the equation x + y = 5:

x + 7 = 5          <em>subtract 7 from both sides</em>

x = -2


4 0
3 years ago
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