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agasfer [191]
3 years ago
14

If you can, please explain the step by step process to finding the answer.​

Mathematics
1 answer:
Bingel [31]3 years ago
8 0

Answer:

20% peanuts are there in the mixture of nuts.

Step-by-step explanation:

Total weight of the mixture =25 lbs(10+15)

In the 25 lbs mixture of nuts, 68 % is peanuts, therefore finding the total weight of peanuts.

68 % of 25 lbs= 17 lbs.

There is a total 17 lbs of peanuts in the mixture .

15 lbs of peanuts was exclusively added, therefore the rest 2 lbs must have come from the mixture of nuts.

Therefore, there is a total of 2 lbs of peanuts in 10 lbs of mixture of nuts.

\frac{2}{10} *100 =20 %

20% peanuts are there in the mixture of nuts.

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The complete answer
erastova [34]

Answer:

4/9*1/2

Step-by-step explanation:

5 0
3 years ago
What's 380 divided by 40
Ksju [112]
The answer is 9.5
Hope it helps :-)

8 0
3 years ago
I’ll give you brainliest for the first person with an answer
raketka [301]

Answer:

1296mm^2

Step-by-step explanation:

Surface Area of the Rectangular Prism to the left on top of the box:

Area of square = lw, 9mm * 9mm = 81mm, then multiply by 2 because 2 of the squares are a part of the surface, giving <u>162mm^2</u>

Area of a rectangle =lw, 9mm * 9mm = 81mm, then multiply by 2 again, because 2 rectangles are a part of the surface, giving <u>162mm^2</u>

So, the total surface area of the rectangular prism to the left on top, is 324mm^2

Surface Area of the Triangular Prism:

Area of a triangle: 1/2bh, and our base length would be 12, because we have to subtract 9 from 21 since the base length of the triangle isn't stated. Anyways, A = 1/2bh, so A = 1/2(12)(9) = 54mm^2, but multiply by two, so we get <u>108mm^2</u>.

Area of the rectangle: lw, so 15mm * 9mm = <u>135mm^2</u>

So, the total surface area of the triangular prism is 243mm^2

Surface Area of the Rectangular Prism at the bottom:

Area of the long rectangles in front = lw, 21mm * 9mm = 189mm^2, multiply by 2, <u>378mm^2</u>

Area of the rectangles to the side = lw, 9mm * 9mm = 81mm^2, multiply by 2, <u>162mm^2 </u>

Area of the rectangle at the very bottom = lw, 21mm * 9mm = <u>189mm^2</u>

So, the total surface area of the rectangular prism at the bottom is 729mm^2

Add all the total surface areas of each shape to get the total surface area of the figure:

324mm^2 + 243mm^2 + 729mm^2 = 1296mm^2

The surface area of the figure above is 1296mm^2

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4 0
2 years ago
A puzzle in the form of a quadrilateral is inscribed in a circle. The vertices of the quadrilateral divide the circle into four
e-lub [12.9K]

Answer:

Therefore,

∠A = 30°

∠B = 60°

∠C = 150°

∠D = 120°

Step-by-step explanation:

Given:

A puzzle in the form of a quadrilateral is inscribed in a circle.

The vertices A ,B ,C ,D of the quadrilateral divide the circle into four arcs in a ratio of 1 : 2 : 5 : 4.

Let the common multiple be "x" then the angles will be

∠A = 1x

∠B = 2x

∠C = 5x

∠D = 4x

To Find:

The angle measures of the quadrilateral = ?

Solution:

In a Quadrilateral inscribed in a Circle,

Sum of the measure of all the angles in a Quadrilateral is 360°

m\angle A +m\angle B +m\angle C +m\angle D=360

Substituting the values we get

x+2x+5x+4x=360\\\\12x=360\\\\x=\dfrac{360}{12}=30

Therefore the measures are

∠A = 30°

∠B = 2 × 30 = 60°

∠C = 5 × 30 = 150°

∠D = 4 × 30 = 120°

Therefore,

∠A = 30°

∠B = 60°

∠C = 150°

∠D = 120°

7 0
3 years ago
Read 2 more answers
2x^2-9x+9 what roots does this polynomial has what kind of roots?
tester [92]
B^2 - 4ac
(-9)^2 - 4 (2)(9)
= 81 - 72
=9 >0 yet it is a perfect square (3^2 =9)
So , it is 2 real and rational roots

(x-3) ( 2x-3) =0
x = 3 , x = 3/2
6 0
3 years ago
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