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3 years ago

Please solve this -3=a/6

Mathematics

2 answers:

nydimaria [60]3 years ago

8 0

-3= a/b should equal to -0.5

andreev551 [17]3 years ago

7 0

The answer is -18=a because you multiply both sides by 6 to get a by itself

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A sample of 100 people is classified by gender (male/female) and by whether they are registered voters. The sample consists of 8

uysha [10]

Answer:

Step-by-step explanation:

Given :

Male Female Total

Registered 60

Non registered 40

Total 20 80

Solution :

N= 100

Formula of expected frequency = $E_{ij}=\frac{T_i \times T_j}{N}$

$E_{ij}$ = expected frequency for the ith row/jth columm.

$T_i$ = total in the ith row

$T_j$ = total in the jth column

N = table grand total.

So, using formula $E_{11}=\frac{T_1 \times T_1}{100}$

$E_{11}=\frac{60 \times 20}{100}$

$E_{11}=12$

$E_{12}=\frac{T_1 \times T_2}{100}$

$E_{12}=\frac{60 \times 80}{100}$

$E_{12}=48$

$E_{21}=\frac{T_2 \times T_1}{100}$

$E_{21}=\frac{40 \times 20}{100}$

$E_{21}=8$

$E_{22}=\frac{T_2 \times T_2}{100}$

$E_{22]=\frac{80 \times 40}{100}$

$E_{22}=32$

Expected frequency table

Male Female Total

Registered 12 48 60

Non registered 8 32 40

Total 20 80

So, the expected frequency for males who are registered voters are $E_{11}=12$

5 0

3 years ago

What is the answer and how do you solve... 2(a-8)+7=5(a+2)-3a-19

Dafna1 [17]

Answer:

2a-9=2a-9

Infinitely Many Solutions

Step-by-step explanation:

2(a-8)+7=5(a+2)-3a-19

Use Distributive Property

2a-16+7=5a+10-3a-19

Combine Like Terms

2a-9=2a-9

You don't have to go further unless it helps

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3 years ago

Please help me on this

san4es73 [151]

The answer is 15! i hope this helped!

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fredd [130]

Answer:

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Step-by-step explanation:

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Miguel has $20. He spends $7.25 on a movie ticket, $3.95 for snacks, and $1.75 for bus fare each way. How much money does Miguel

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He has $5.30 left over.

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