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cestrela7 [59]
2 years ago
12

PLEASE HELP WITH THE PROBLEM ON THE ATTACHED FILE

Mathematics
1 answer:
prisoha [69]2 years ago
6 0

Answer:

6 : 1

Step-by-step explanation:

b - 3a / 9 = a /3

Cross multiply

3(b - 3a) = 9a

Expand

3b - 9a = 9a

Add 9a to both sides

3b = 9a + 9a

3b = 18a

Divide both sides by 3

b = 6a

Ratio of a : b

6 : 1

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Evaluate
lora16 [44]

Answer:

8

Step-by-step explanation:

the top part with the variables filled in is 0 + (2x4) + (3x4x2) which is 32

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7 0
3 years ago
Evaluate 15/5 + 40 . 7 - 3 to the power of 4.
Lina20 [59]
15/5 + 40.7 -3^4
= 3 + 40.7 - 81
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hope this helps! :)))
4 0
3 years ago
Which is the only strategy down below that does NOT work when figuring out what 30% of 2,000 is?
ozzi

Answer:

C. 0.03 x 2000

6 0
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What is 5x5+4-6x12 my teacher told me the wrong answer i need help
jok3333 [9.3K]
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6 0
3 years ago
Two functions are shown in the table below.
SVETLANKA909090 [29]

Answer:

(d)\ x = 4

Step-by-step explanation:

Given

f(x) = -x^2 + 4x + 12

g(x) = x + 8

Required

Find x such that: f(x) = g(x)

This gives:

-x^2 + 4x + 12 = x+8

Collect like terms

-x^2 + 4x -x + 12 -8=0

-x^2 + 3x +4 =0

Expand

-x^2 + 4x - x+4 =0

Factorize

x(x - 4) - 1(x-4) = 0

Factor out x - 1

(x- 1)(x - 4)=0

Solve:

x =1\ or\ x = 4

8 0
3 years ago
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