what ratio is equivalent to 15/40?​

Answer:

$29.69

Step-by-step explanation:

Marked down 25% means it is now worth 75% of original value.

0.75*39.59 = $29.69

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Answer:

$29.70

Step-by-step explanation:

$39.59 / 4 = 9.8975.  Round up to 9.90

$39.59 - $9.90 = $29.69

Answer:

90

Step-by-step explanation:

90

Answer:

2.4 kg/week

Step-by-step explanation:

(48 kg)/(20 weeks) = 2.4 kg/week

Answer:

Step 1

Step-by-step explanation:

His first error occurred in step 1.

The common denominator of [tex] \frac{2}{9} [/tex] and [tex] \frac{1}{5} [/tex] is 45, and not 14.

Common denominator of both fractions, is a number of which both 9 and 5 are its factor. That is, it is a common multiple of 9 and 5.

45 can be divided by 9 without remainder. Also 45 can be divide by 5 without a remainder.

45 would make both fractions common not 14.

Answer:

2+x=15-7/8x

Step-by-step explanation:

Answer:

Step-by-step explanation: the answer is -136 because you have the follow the steps of pemdas

Answer:

9425912.111

Step-by-step explanation:

Answer:

9425912.111

Step-by-step explanation:

Answer:

1. 3/195, 5/325, 9/585, 10/650

2. 2/15, 3/22.50,  5/37.50, 8/60

Step-by-step explanation:

Answer:

mLNM=63

Step-by-step explanation:

triangle JKL is isocelese so mKJL and KLJ are the same

180-72=108

108/2=54

so both mKLJ and mMLN are equal

and since triangle LMN is an isoceles then mLNM and mLMN are equal to each other

so 180-54=126

126/2=63

mLNM=63

Answer:

a) 9 inches

is correct answer for you

Answer:

C, 25

Step-by-step explanation:

3 x 5 = 15

5 x 5 = 25

Answer:

1) intersection of both lines is the solution: (-3, 1)

2) y = -1/6x + 1 will produce a perpendicular line and intersect at only one point  (slopes of 6 and -1/6 are opposite and reciprocal, thereby producing perpendicular lines)

3) 'b' can be any value except 1

Step-by-step explanation:

Answer:

SSS

Step-by-step explanation:

The SSS theorem is the side-side-side theorem. Basically, since all three sides from one triangle is congruent to the corresponding sides of the other triangle, then the triangles have to be congruent. There are other theorems such as the SAS theorem (side-angle-side), but since the question only give us the fact that the sides are congruent, its SSS. Sorry, I hope this is good enough. XD

Answer:

the answer is b i think

Step-by-step explanation:

12345

Answer:

well for me

Step-by-step explanation:

I think it's 80-13 because it reduced by a minus 13

Answer:

X is the answer

Step-by-step explanation:

Answer:

x is the answer because it is

Answer:

False

Step-by-step explanation:

2x + y = 0

Try (1, -2)

2(1) + (-2) = 0

2 + (-2) = 0

0 = 0

The solution works on the first equation.

-x + 2y = 5

-(1) + 2(-2) = 5

-1 - 4 = 5

-5 = 5

The solution does not work in the second equation.

Answer: False

Answer:

3)   (4, 2)

Step-by-step explanation:

The point of intersection of the lines is the solution. That point is (4, 2).

Answer: 3)   (4, 2)

Answer:

the answer is the third one (4, 2)

Step-by-step explanation:

the solution to a system of equations is always where they intersect. in this case, the two lines intersect at (4, 2), which means that the solution is (4, 2).

hope this helped!! :D

Complete question is;

A shareholders’ group, in lodging a protest, claimed that the mean tenure for a chief executive office (CEO) was at least seven years. A survey of companies reported in The Wall Street Journal found a sample mean tenure of x¯ = 7.27 years for CEOs with a standard deviation of s = 6.38 years (The Wall Street Journal, January 2, 2007).

a. Formulate hypotheses that can be used to challenge the validity of the claim made by

the shareholders’ group.

b. Assume 85 companies were included in the sample. What is the p-value for your hypothesis

test?

Answer:

A) Null hypothesis: H0: μ ≥ 7

Alternative hypothesis: μ < 7

B) p-value = 0.3488

Step-by-step explanation:

A) We are told that the shareholders group claimed that the mean tenure for a chief executive office (CEO) was at least seven years.

Thus, defining the hypothesis, we have;

Null hypothesis: H0: μ ≥ 7

Alternative hypothesis: μ < 7

B) Sample mean: x¯ = 7.27 years standard deviation: s = 6.38 years

Sample size = 85

Formula for the test static is;

t = (x¯ - μ)/(s/√n)

t = (7.27 - 7)/(6.38/√85)

t = 0.39

From online p-value from t score calculator attached using: t = 0.39, DF= 85 - 1 = 84, significance value = 0.05, one tail, we have;

p-value = 0.3488

Answer:

Step-by-step explanation:

The nth term of a geometric sequence is expressed as;

Sn = a(r^n - 1)/r - 1

a is the first term of the sequence

r is the common ratio

n is the number of terms

From the sequence;

a = 3

r = -6/3 = 12/-6 = -2

n = 5 (since are looking for the sum of first five terms)

Substitute into the formula;

S5 = 3((-2)^5 - 1)/-2 - 1

S5 = 3(-32-1)/-3

S5 = 3(-33)/-3

S5 = -(-33)

S5 = 33

Hence the sum of the first five terms of the sequence is 33

Answer:

c is the correct answer

Step-by-step explanation:

Answer:

Correct Answer is B

Step-by-step explanation:

Graph the parabola using the direction, vertex, focus, and axis of symmetry.

Direction: Opens Up

Vertex: (−3,−10)

Focus: (−3,−[tex]\frac{39}{4}[/tex])

Axis of Symmetry: x = −3

Directrix: y = −[tex]\frac{41}{4}[/tex]

x               y

-5             -6

-4             -9

-3            -10

-2             -9

-1              -6

Step-by-step explanation:

5. da^2

7×4^2

=7×16

=112

6.g(b+e)

=10(8+3)

=10×11

=110

7.a+b(f+g)

=4+8(9+10)

=4+8×19

=4+152

=156

8.a+b/3

=4+8/3

=12/3

=4

Answer:

D

Step-by-step explanation:

Hope this helps.   :)     :D

Answer:

the answer is d.) (1,9)

Step-by-step explanation:

Really hope this helps xx

Answer:

[tex]\boxed {\boxed {\sf 74}}[/tex]

Step-by-step explanation:

The nth term of an arithmetic sequence can be found using the following formula.

[tex]a_n=a_1+(n-1)d[/tex]

Where n is the term, a₁ is the first term, and d is the common difference.

We want to find the 21st term, we know the first term is -6, and the common difference is 4.

[tex]n= 21\\a_1= -6 \\d=4[/tex]

Substitute the values into the formula.

[tex]a_{21}=-6+(21-1)4[/tex]

Solve according to PEMDAS: Parentheses, Exponents, Multiplication, Division, Addition, Subtraction.

Solve inside the parentheses.

[tex]a_{21}=-6+(20)4[/tex]

Multiply 20 and 4.

[tex]a_{21}= -6+80 \\[/tex]

Add -6 and 80.

[tex]a_{21}=74[/tex]

The 21st term of the sequence is 74

Answer:

Here we will use the formula

[tex] \tt \: a_n \: = a_1 +( n - 1)\: \times d[/tex]

[tex] \tt\: a_{21} = −6+(21−1)4[/tex]

By using PEMDAS

[tex] \tt \: a_{21} = - 6 + (20)4[/tex]

[tex] \tt \: a_{21} \: = - 6 + 80 = 74[/tex]

[tex] \huge \tt \bigodot \: \: 74[/tex]

Answer: Pedro tiene 2 años.

Step-by-step explanation:

Definamos la variable P como la edad de Pedro.

Sabemos que " El triple de la edad de pedro, más 2, es igual a la edad actual de pedro más 6"

Esto se escribe como:

3*P + 2 = P + 6.

Para encontrar la edad de Pedro, tenemos que resolver esa ecuación.

Para hacerlo, el primer paso es llevar todos los términos con "P" al lado izquierdo, y los términos sin "P" al lado derecho.

3*P - P = 6 - 2

2*P = 4

Ahora podemos dividir por 2 en ambos lados:

2*P/2 = 4/2

P = 2

Entonces podemos concluir que Pedro tiene 2 años.

Answer 1. mZUTV=m/

= 850

2. m/R+m/S+mc

3. 3x + 2x +

4. x=

Answer:

I think that answer is 5 or 35