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3 years ago

How much of an alloy that is 10 percent copper should be mixed with 500 ounces of an alloy that is 90?

1 answer:

6 0

So 500ounces is 90% of the alloy.
So 500:90
Now divide both sides by 9.
500/9:10
So thats
55.56:10 or
55 5/9:10
Or keep it as
500/9:10

You might be interested in

Are these equations infinite solution, no solution, or one solution?

Karo-lina-s [1.5K]

Answer:

1) one solution

2) Infinitely many solution

3) no solution

Step-by-step explanation:

The first equation is -14-8x=-2(-3x+7)

Let us expand the right hand side to get:

-14-8x=-2*-3x+-2*7

We multiply -14-8x=6x-14

We group similar terms to get:

-8x-6x=-14+14

Combine similar terms to get:

-14x=0

Divide through by -14 to get:

x=0

2) The second equation is 3+5x=5(x+2)-7

We expand to obtain:

3+5x=5x+5*2-7

Multiply to get:

3+5x=5x+10-7

This gives us

3+5x=5x+3

5x=5x

1=1

There is infinitely many solutions

3) The third equation is: 36-7x=-7(x-5)

We expand to get:

36-7x=-7x+35

Group similar terms;

-7x+7x=35-36

0=-1

This statement is not true so there is no solution.

5 0

3 years ago

At a restaurant grand opening, a giant sandwich that was 352 centimeters long was divided equally among 22 people. Clyde got one

snow_lady [41]

Answer:

8 cm

Step-by-step explanation:

You neglected to include any equations

Here is one way to solve:

length of each piece

352/22 = 16

Half a piece

16/2 = 8

Choice C

352/22/2 = l

5 0

3 years ago

The math teachers inspect the homework assignments from a random sample of 50 students at the school. Only 68% of the students c

Lapatulllka [165]

1 because the number is alsome

7 0

3 years ago

For each value of y, determine whether it is a solution to 7=y÷4.

rjkz [21]

Answer:

Step-by-step explanation:

7 = y/4

7*4 = y

y = 28

4 0

3 years ago

Read 2 more answers

A figure is created for semi-circles in a rectangle?

aev [14]

Answer:Learn to find the area of composite figures that contain circles and semi-circles. ... The area of the rectangle is 48 square inches. Next, recognize that ... Find the area of a figure that is made up of a square and a semi-circle.

Step-by-step explanation:I have made this reasoning: an eyelet consists of two semicircles and a rectangle (or two semirectangle), then a semicircle and a semirectangle ..But some irregular figures are made up of two or more standard geometric shapes. To find the ... We will break the figure into a rectangle and two semi-circles.

4 0

3 years ago