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oksian1 [2.3K]
3 years ago
10

What did I do wrong?

Mathematics
2 answers:
Dimas [21]3 years ago
8 0
I hope this helps you x.(x+4)=60 60=6.10 x=6 x+4=6+4=10
alex41 [277]3 years ago
3 0
4 more than the width is w+4, NOT 4w
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How many pounds of a 23% zinc alloy must be mixed with a 42% zinc alloy to make 516 pounds of a 37.25% zinc alloy?
nydimaria [60]

Answer:

(A)129 Pounds

Step-by-step explanation:

Let x be the number of 23% zink alloy

Therefore:

Since the total result is 516 pounds

The number of pounds of 42% zink alloy =516-x pounds

We then have the resulting equation:

0.23x+0.42(516-x)=0.3725*516

0.23x+216.72-0.42x=192.21

Colect like terms

0.23x-0.42x=192.21-216.72

-0.19x=-24.51

Divide both sides by 129

x=129 pounds

Therefore, the number of pounds of 23% zink alloy that must be mixed is 129 pounds.

6 0
3 years ago
Determine whether a given set of vectors spans a vector space
PIT_PIT [208]
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6 0
3 years ago
What is the laterral surface area?
ch4aika [34]

Answer:

In other words, the surface area is the sum of all the areas of all the shapes that cover the surface of the object. On the other hand, the lateral surface area refers to the area of the sides of a shape , excluding its base and top area.

Step-by-step explanation:

6 0
3 years ago
A committee of three men and two women can be formed from a group of nine men and eleven women in how many different ways.
Marrrta [24]

Answer:

4620.

Step-by-step explanation:

The number of combinations of 3 men from 9

= 9!/(9-3)!3!

=  9*8*7/3*2*1

= 84 ways.

The number of combinations of 2 women from 11

= 11!/11-2)!2!

=  11*10/2*1

= 55 ways.

So the total number of ways  of men and women in the committee

= 84*55

= 4620.

8 0
2 years ago
What is the answer and could you explain
pishuonlain [190]
16 different combinations. There are 8 sections on the spinner and 2 sides on a coin. 8 combinations for heads and 8 for tails, which equals 16.

I hope this helps. If it does, please mark it as Brainliest
3 0
3 years ago
Read 2 more answers
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