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Phantasy [73]
2 years ago
10

Solve for A: B = 2/5 ( A-9)

Mathematics
1 answer:
tamaranim1 [39]2 years ago
4 0

Answer:

Step-by-step explanation:

B = 2/5(A - 9)

(5/2)B = A - 9

A = 9 + (5/2)B

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Which expression is equivalent to (5^-2)(5^-1)
nadya68 [22]
The rule for multiplying similar bases with exponents:

(a^b)(a^c)=a^(b+c)

In this case we have:

(5^-2)(5^-1)

5^(-2-1)

5^(-3)

The rule for negative exponents:

a^(-b)=1/(a^b)

So in this case:

5^(-3) is equal to 

1/(5^3)

1/125
5 0
3 years ago
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What is 10 times as much as 130
Rasek [7]
10 times as much as 130 is 1300
5 0
3 years ago
Can you answer this one please
creativ13 [48]

Answer:

50⁰

Step-by-step explanation:

Since j and k are parallel lines cut by two transversals,

2+3+5=180⁰ <em>(</em><em>Allied</em><em> </em><em>angles</em><em>)</em>

We are given 2(60⁰) and 5(70⁰)

so,

60⁰+3+70⁰=180⁰

60+70=130

130⁰+3=180⁰

Bring the 130⁰ to the R.H.S

3=180⁰-130⁰

Therefore,

3=50⁰

6 0
2 years ago
The cars access code has four digits first digit cannot be zero and the last digit must be even
arlik [135]
There's 9 choices for the first digit and 4 choices for the last digit. The number of choices for the 2nd and 3rd digits is 90 if 2 numbers are different. or 100 if duplicates are allowed.

If duplicates are allowed the answer is 9 * 100 * 4 = 3600 possible numbers.
4 0
2 years ago
A rectangular floor is 18 feet long and 12 feet wide. what is the area of the floor in square yards
yaroslaw [1]
You need to find the answer in yards
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18/3=6
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hope this helps:)
please mark thanks and brainliest:)
5 0
2 years ago
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