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ss7ja [257]
4 years ago
9

I need help in part A and part B

Mathematics
1 answer:
mezya [45]4 years ago
8 0
One thing to remember about percent is that "%" means the same as "/100".

A) 25% = 25/100

B) (25/100)*(total pieces) = 20 pieces
Multiply by 100/25 = 4
.. total pieces = 4*(20 pieces) = 80 pieces

Answer: 80 pieces of paper
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When setting up a proportion to calculate scale drawings, how do you write the proportion? A)actual/actual B)actual/drawing C) d
Semmy [17]

When setting up a proportion to calculate scale drawings, how do you write the proportion? A)actual/actual B)actual/drawing C) drawing/drawing D)drawing/actual

The correct answer is option D: drawing/actual

Suppose there is a drawing that has a scale of 1:10. So, this means anything drawn with the size of "1" would have an actual size of "10" in the real world, so a measurement of 120mm on the drawing would be 1200mm on the actual/real image.

3 0
4 years ago
If the surface area of a sphere is 530.93 square cntimeters, find the volume of the sphere
hodyreva [135]

The volume of sphere is: 1149.76\ cm^3

Further explanation:

We have to find the radius of the sphere first to find the volume of sphere

Given

Surface Area of Sphere=530.93 cm^2

SA=4\pi r^2\\530.93=4*3.14*r^2\\530.93=12.568r^2\\r^2=\frac{530.93}{12.56}\\r^2=42.27\\Taking\ Square\ root\ on\ both\ sides\\\sqrt{r^2}=\sqrt{42.27}\\r=6.5\ cm\\Now,\\V=\frac{4}{3}\pi r^3\\V=\frac{4}{3}*3.14*(6.5)^3\\=\frac{4}{3}*3.14*274.625\\=1149.76\ cm^3

The volume of sphere is: 1149.76\ cm^3

Keywords: Sphere, Volume of sphere

Learn more about spheres at:

  • brainly.com/question/4892332
  • brainly.com/question/4924817

#LearnwithBrainly

6 0
3 years ago
a doctor order calls for you to administer 0.1 mg of epinephrine in stock is a 1ml ampule that contains1 mg of epinephrine cacul
Darina [25.2K]

If 1 ml of volume contains 1 mg of epinephrine, then 0.1 ml of volume contains 0.1 mg of epinephrine.

Let x be the number of ml you need.

Ratio: 1 ml is to 1 mg as x ml is to 0.1 mg

(1 ml)/(1 mg) = (x ml)/(0.1 mg)

Cross multiply.

1 * x = 1 * 0.1

x = 0.1

Answer: 0.1 ml

6 0
4 years ago
HELP! You might have to zoom in
xeze [42]
Remember slope is \dfrac{rise}{run}. In the graph we can just pick two points on the line to find the rise and run between. Let's say we choose (0,3) and (1,7). Between those points there is 7-3=4 rise and 1-0=1 run. So the slope is \dfrac{4}{1}=\boxed{4}
5 0
4 years ago
HELP ME PLEASE.......
lesantik [10]
First and the fourth
8 0
3 years ago
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