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pantera1 [17]
3 years ago
7

What value of a makes this equation true?

Mathematics
2 answers:
Goshia [24]3 years ago
7 0

9/10=a/30. and value of a is 27

sergeinik [125]3 years ago
4 0

Answer:

27

Step-by-step explanation:

We can use cross products to solve

9          a

----- = --------

10        30

9*30 = 10a

270 = 10a

Divide each side by 10

270/10 = 10a/10

27 =a

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P(x) = 2x^3+5x -19 if x=2
AfilCa [17]
I think the answer is 2p = 7
7 0
2 years ago
Sweet t purchased a new pair of jeans to wear at the battle of the bands on sale at 40% off.He saved $20 what was his regular pr
Oliga [24]
If he got the jeans for 40% off he paid 60% of the cost for the jeans. With that you can setup an equation.

20 is 60% of what number

is signifies equals and of signifies multiplication

20 = 0.6*x
x = 20/.6
x = 33.33

The regular price of the jeans is $33.33
8 0
3 years ago
2.3 - 5m = 9.8 + 2.5m
Angelina_Jolie [31]

Answer:

m=-1

Step-by-step explanation:

2.3-5m=9.8+2.5m

     +5m=9.8+5m

2.3=9.8+7.5m

-9.8   -9.8

-7.5=7.5m

/7.5   /7.5

-1=m

5 0
3 years ago
Read 2 more answers
Solve 5 (1 + x) = 5x + 5
german

Step-by-step explanation:

5(1+x)

= 5 + 5x

= 5x + 5

.......

3 0
3 years ago
Read 2 more answers
Does anyone know how to do this i need help please
steposvetlana [31]

Answer:

answer is 82 feet

Step-by-step explanation:

perimeter is sun of all sides = 20 +9 +13+ 7 +12 + 21 = 82 feet

hope this will help you ...

4 0
3 years ago
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