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3 years ago

Can someone helps me with these 2 questions?

Mathematics

2 answers:

evablogger [386]3 years ago

8 0

the answer is 11/2

hope i helped

Firdavs [7]3 years ago

6 0

3/5 = 75/x

75/3 = 25

5 x 25 = 125

3/5 = 75/125

Book has 125 pages

6 3/4 ÷ 4 1/2 = 1 1/2

1 1/2 times as long

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Please help!!!! 53=-19x+5+7x

nexus9112 [7]

Your answer would be -4

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3 years ago

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Solve the equation for all values of x in simplest form (x + 3)^2 = -16

Arlecino [84]

Answer:

x = -7 or x = 1

Step-by-step explanation:

Given expression:

(x + 3)² = -16

Problem;

Solve for x;

Solution:

To solve for x; we use the factorization method;

Take -16 to the left of the equation;

(x + 3)² = -16

(x + 3)² + 16 = 0

(x+ 3)² + 4² = 0

if x² + y² = (x + y)(x - y)

So;

(x + 3 + 4) (x + 3 - 4) = 0

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3 years ago

6:15:21 in its simplest form

Readme [11.4K]

6:15:21

6:15:21= 2:5:7

(when divided by 3)

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3 years ago

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Hannah places her home on a grid so that each unit square on the grid equates to 11 mile. She uses the fact that the major stree

Aneli [31]

Answer:

64.1

Step-by-step explanation:

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3 years ago

Two dance teams, the Roses and the Tulips, are perfectly matched so that their chances of winning are both set at 50%. What is t

shtirl [24]

Answer:

Step-by-step explanation:

Step 1

The fist step is to define the probabilities.

The events are independent from each other. Each team wins with probability $\frac{1}{2}$ and looses with probability $\frac{1}{2}.$ Let $P(W_R)$ be probability that Roses win and $P(L_R)$ be the probability that Roses loose.

Step 2

The second step is to calculate the probabilities by multiplying the probabilities with the first 3 terms in the product being the probability of a win and the last term being the probability of a loss.

The calculation is shown below,

$P(W_R)\times P(W_R)\times P(W_R)\times P(L_R)=\frac{1}{2} \times \frac{1}{2} \times\frac{1}{2} \times\frac{1}{2} =\frac{1}{16}$

Step 3

The last step is to convert this probability into a percentage. Converting this probability to a percentage is done as shown below,

$\frac{1}{16} \times 100\%=6.25\%.$

Step 4

The next step is to round down the percentage . The value of 6.25% rounded down is 6%. The correct answer is 6%.

3 0

3 years ago