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AnnyKZ [126]
3 years ago
10

If x-5=12, what is the value of x-9?

Mathematics
1 answer:
aleksandr82 [10.1K]3 years ago
5 0

Answer

8

Step-by-step explanation:

5+12=17 and 17-9=8

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The ratio of boys to girls at a movie is 3:4 . If there are 16 girls ​, how many boys are at the​ movie?
Annette [7]

Answer:

12 boys

Step-by-step explanation:

  1. Set up a proportion: \frac{3}{4} = \frac{x}{16}  
  2. Cross multiply, then divide: 3 × 16 = 48, 48 ÷ 4 = 12

I hope this helps!

8 0
3 years ago
Read 2 more answers
Is 42(x + 14y) equivalent to 42x - 56y
g100num [7]

Answer:

No its not

Step-by-step explanation:

When 42(x + 14y) is simplified:

42(x + 14y)

Expand and remove the brackets. Remember brackets mean to multiply.

42*x

42x

42*14y

588y

42x+588y

Therefore 42x-56 is NOT EQUIVALENT to 42(x + 14y) but is equivalent to 42+588y

3 0
4 years ago
A hypothesis test is conducted with a significance level of 5%. The alternative hypothesis states that more than 65% of a popula
mr_godi [17]

Answer:

Not sure thats the whole question.

Step-by-step explanation:

8 0
3 years ago
Round to the nearest cent.
DIA [1.3K]
I think the answer is b
6 0
3 years ago
During the afternoon, and 18 foot tall tree casts a shadow 25 feet long. What is the approximate andle of elevation from the end
Karo-lina-s [1.5K]

a tree casts a 25-foot shadow on sunny day. If the angle of elevation from the tip of the shadow to the top of the tree is 32 degree, what is the height of the tree to the nearest tenth of a foot?

 

Tan(32)=H/25

0.624869=H/25

H=.624869 X 25

H=15.6 feet-Height of the tree.

6 0
3 years ago
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