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ahrayia [7]
3 years ago
10

What is 4/3=t/7 slove for t

Mathematics
2 answers:
Rasek [7]3 years ago
8 0

Answer:

t=9.333

Step-by-step explanation:

Given equation is \frac{4}{3}=\frac{t}{7}

We need to solve for t

Step- 1

Multiply 7 to the both sides of the equation.

\frac{4}{3}\times7=\frac{t}{7}\times7

Step- 2

We can see that the denominator of the right-hand side which is 7, will be canceled.

\frac{4}{3}\times7=t

Step- 3

Now, we will multiply the numerator of the left hand side.

\frac{28}{3}=t

Step- 4

Divide the numerator by denominator on the left side we get.

t=9.333

goldfiish [28.3K]3 years ago
8 0

Answer:

It should be 28/3

Step-by-step explanation:

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The dingram shows a spinner innde up of a picce of card in the shape of a regular pentagon, with a toothpick pushed through its
Anastaziya [24]

Answer:

a) P(X \leq 3) = 0.99328

b) 0.6957

Step-by-step explanation:

Let X represent the number of 4's when  n = 5 independent spins

each has a probability of 0.2 (i.e p = 0.2)

This notation is represented as:

X \approx Binomial (n = 5, p = 0.2)

Probability of  x  number of 4's is:

P(X=x)= (\left \ n \atop x \right) p^x (1-p)^{(n-x)}

here; (\left \ n \atop x \right) is the combinatorial expression

(\left \ n \atop x \right) = \frac{n!}{x!(n-x)!}

P(X \leq3), n =5 , p = 0.2

P(X \leq3) = 1-P(X > 3)

So; let's first find:

P(X > 3)

= P(3

P(X = 4) =( \left \ {{5} \atop {4}} \right. ) (0.2)^4 (1-0.2)^1  \\ \\ P(X = 4) = 5(0.2)^4(0.8)^1 \\ \\ P(X = 4) = 0.0064

P(X = 5) =( \left \ {{5} \atop {5}} \right. ) (0.2)^5 (1-0.2)^0  \\ \\ P(X = 5) = 5(0.2)^5(0.8)^0 \\ \\ P(X = 5) = 0.00032

P (X=4)+P(X  = 5 ) \\ \\  = 0.0064 + 0.00032 = 0.006720  \\ \\ \approx 0.007

P(X > 3 ) = 0.00672 \\ \\ P(X \leq 3) = 1- P(X > = 3 ) \\ \\ =1 - 0.00672  \\ \\ = 0.99328

P(X \leq 3) = 0.99328

b)

Given that:

The ratio of boys to girls at birth in  Singapore is quite high at 1.09:1

What proportion of Singapore families with exactly 6 children will have at least 3 boys?

Probability of having a boy = \frac{1.09}{1+1.09} = 0.5215

Binomial Problem with n = 6

P(3<= x <=6) = 1 - P(0<= x <=2)

= 1 - binomial (6,0.5215,2)

= 0.6957

5 0
3 years ago
8x + 8 = 180 help me please
Alex_Xolod [135]

Answer:

Step-by-step explanation:

8x=180-8

8x=172

8x/8=172/8

x=21.5

7 0
3 years ago
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Which expression is a possible leading term for the polynomial function graphed below?
mylen [45]

Answer: Option A. -4x^8


Step-by-step explanation:

The polynomial function given in the graph has 4 real roots. And because the graph falls to the left and right, it will have even order and negative leading coefficient.

So we have only one option that matches the required conditions, and i.e. option A.


4 0
3 years ago
4(3xy^4)^3/(2x^3y^5)^4
myrzilka [38]

Answer:

\frac{4\left(3xy^4\right)^3}{\left(2x^3y^5\right)^4}=\frac{27}{4x^9y^8}

Step-by-step explanation:

Given the expression

\:\:\frac{4\left(3xy^4\right)^3}{\left(2x^3y^5\right)^4}

solving the expression

\:\:\frac{4\left(3xy^4\right)^3}{\left(2x^3y^5\right)^4}=4\cdot \:\frac{\left(3xy^4\right)^3}{\left(2x^3y^5\right)^4}

             =4\:\frac{27x^3y^{12}}{16x^{12}y^{20}}

              =4\cdot \frac{3^3}{2^4x^9y^8}

The multiply fractions are defined as

\:a\cdot \frac{b}{c}=\frac{a\:\cdot \:b}{c}

so the expression becomes

                =\frac{3^3\cdot \:4}{2^4x^9y^8}

                =\frac{3^3\cdot \:2^2}{2^4x^9y^8}

                =\frac{3^3}{2^2x^9y^8}

Refining

                 =\frac{27}{4x^9y^8}

Therefore,

\frac{4\left(3xy^4\right)^3}{\left(2x^3y^5\right)^4}=\frac{27}{4x^9y^8}            

8 0
3 years ago
Round off 0.825 to nearest units,tenths,hundreds
abruzzese [7]
Nearest tenths would be = .8
nearest hundreds would be = .82
4 0
3 years ago
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