1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
soldi70 [24.7K]
3 years ago
7

In a certain chemical,The ratio of zinc to copper is 3 to 11.A jar of the chemical contains 286 grams of copper.how many grams o

f zinc is there? thanks UwU '^'
Mathematics
2 answers:
BabaBlast [244]3 years ago
8 0

Answer:

The jar of chermical contains 66g of Zinc.

Step-by-step explanation:

The ratio of Zinc to Copper is 3 : 13

A jar of the chemical contains 286g of copper.

Let the mass of the Zinc be xg.

13/3 = 286/x

x = 3A286/13= 66g

So the jar of chemical contains 66g of Zinc.

Nesterboy [21]3 years ago
4 0
78 g because 2/11 of 286 is 78 g
You might be interested in
Ann needs <br>42 feet of fabric to make a small quilt how many yards of fabric should she buy​
irinina [24]

42/3 = 14 yards

She will need 14 yards

8 0
3 years ago
Read 2 more answers
Steel loading ramps are used to load a
tia_tia [17]

Answer:

6.25 feet.

Step-by-step explanation:

Let L be the length of the ramp in feet.  

We have been given that steel loading ramps are used to load a lawn mower onto a truck bed 37.5 inches above the ground. The ramp make a 30° angle with the ground.

We can see from our attachment that ramp and truck bed forms a right triangle with ground. The truck bed is opposite side and length of ramp is hypotenuse of our given angle.

Since we know that Sine relates the opposite and hypotenuse of a right triangle, so we will use Sine to solve for L.

Upon substituting our given values in above formula we will get,

Therefore, the length of the ramp is 75 inches.

Let us convert the length of ramp in feet.

1 feet = 12 inches.

Therefore, the length of the ramp is 6.25 feet.

6 0
3 years ago
Help due soon <br> find the area using 3.14 for π<br> round to the nearest Hundredth if you have too
andrey2020 [161]

Answer:

Circumference is about 185.26 cm.

Area is about 2732.585 cm^{2}

Step-by-step explanation:

Circumference = 2πr

2 x 3.14 x 29.5 = 185.26

Area of a circle = πr^{2}

3.14 x 29.5 x 29.5 = 2732.585

7 0
3 years ago
Suppose a 95% confidence interval for μ turns out to be (1,000, 2,100). give a definition of what it means to be "95% confident"
IRISSAK [1]

Answer:

In repeated sampling, 95% of the intervals constructed would contain the population mean.

3 0
3 years ago
Sara put 7 boxes in her closet. Each box is for holding a different type of seashell. So far, there are 0 shells in each box. Ho
user100 [1]

Given that Sara put 7 boxes in her closet.

So number of boxes = 7

Then it says that each box is for holding a different type of seashell. So far, there are 0 shells in each box.

So the number of seashell in 1 box = 0


We need to find about how many shells does Sara have.

To find that we will just multiply (number of boxes) by (number of seashell in 1 box). Which is given by 7 times 0.


we know that product of a number and 0 is always 0.

Hence final answer is 0 seashell.

3 0
3 years ago
Other questions:
  • 1.6w - 1.2w + 3.5 + 4.7w
    15·1 answer
  • I NEED HELP WITH THIS QUESTION PLEASEEEE BRAINLIEST AND 30 POINTS
    6·1 answer
  • Use the equation of a line with a slope of 4 and a y-intercept of -3.
    8·1 answer
  • Simplify the expression. (2x^2y)^3
    6·2 answers
  • Hayley's drink coaster has a radius of 4 centimeters. What is the coaster's area? Use 3.14 for ​.
    12·1 answer
  • |18-x|, if x&lt;18. Pls help
    11·1 answer
  • 6 (-3+1) =5 (-2m-2) plz help me ;-----------------------------;
    6·1 answer
  • HELPPPPPPPPPPP<br><br> WHAT IS 67+8,900+12+14+15????
    14·2 answers
  • 4. What is the volume of the prism below?<br> 12 in<br> 9 in<br> 16 in
    7·1 answer
  • Jamie needs 1/5 meter of ribbon to decorate the border of a photo frame. Enter the number of photo frames that can be decorated
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!