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andreev551 [17]

4 years ago

7

Last week, carlie had several rice cakes and 3 gronola bars as snacks. The snacks contained a total of 800 calories. If each gra

nola bar had 120 calories and each rice cake had 40 calories, how many rice cakes did she have?

1 answer:

Alex_Xolod [135]4 years ago

5 0

Charlie must have had 11 rice cakes

You multiply 120 times 3 to get 360

then 800- 360 = 440

440 divided my 40 = 11

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Find the surface area of the composite figure

Gnoma [55]

Answer:

$=280$ $in^2$

Step-by-step explanation:

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

Let's find the surface area of the pink rectangular prism first.

$2*10=20+20=40$

$4*10=40+40=80$

$4*2=8+8=16$

$40+80+16=136$

The surface area for the pink rectangular prism is $136$ $in^2$ .

-------------------->>>>>

Now, let's find the surface area of the green rectangular prism.

$4*7=28+28=56$

$4*7=28+28=56$

$4*4=16+16=32$

$56+56+32=144$

The surface area for the green rectangular prism is 144 $in^2$ .

-------------------->>>>>

Now let's add the surface area of both rectangular prisms to find the surface area of the composite figure.

$136+144=$

$=280$ $in^2$

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

Hope this is helpful.

6 0

3 years ago

Read 2 more answers

Please answer correctly !!!!! Will mark Brianliest !!!!!!!!!!!!!!

ELEN [110]

Answer:

$Volume~of~cylinder=\pi r^2h$

$\pi *(10)^2*5$

$500\pi$

$1570.8~m^3$

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3 0

3 years ago

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Solve the quadratic equation (2x+5)(2x-5)

mote1985 [20]

If you want to multiply (2*x + 5) and (2*x - 5), you can do this using the following steps:

(2*x + 5) * (2*x - 5) = 4*x^2 - 10*x + 10*x - 25 = 4*x^2 - 25

The correct result is 4*x^2 - 25.

4 0

3 years ago

At a sale, Salazar bought 4 T-shirts and 3 pairs of jeans for $181. At the same store, Jenna bought 1 T-shirt and 2 pairs of jea

tankabanditka [31]

Answer:

Step-by-step explanation:

4 0

3 years ago

Alan is building a garden shaped like a rectangle with a semicircle attached to one short side. If he has 70 feet of fencing to

viktelen [127]

The dimension that would give the maximum area is 20.8569

<h3>How to solve for the maximum area</h3>

Let the shorter side be = x

Perimeter of the semi-circle is πx

Twice the Length of the longer side

$[70-(\pi )x -x]$

Length = $[70-(1+\pi )x]/2$

Total area =

area of rectangle + area of the semi-circle.

Total area =

$x[[70-(1+\pi )x]/2] + [(\pi )(x/2)^2]/2$

When we square it we would have

$70x +[(\pi /4)-(1+\pi)]x^2$

This gives

$70x - [3.3562]x^2$

From here we divide by 2

$35x - 1.6781x^2$

The maximum side would be at

$x = 35/2*1.6781$

This gives us 20.8569

Read more on areas and dimensions here:

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7 0

2 years ago