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3 years ago

Please help me to solve the problems

Mathematics

2 answers:

timurjin [86]3 years ago

6 0

The number of movies are:
$4 \times 10 + 2 = 40 + 2 = 42$
the first missing number is 4 then 2 then 42

olchik [2.2K]3 years ago

3 0

I can’t help you I’m sorry

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How Can I alive this complex problem

Nata [24]

Percent decrease is 1-(new/old) so 1-60000/400000 or 1-0.15 or 0.85 or 85%

3 0

2 years ago

At a fabric store, fabrics are sold by the yard. A dressmaker spent $36.35 on 4.25 yards of

ArbitrLikvidat [17]

Answer:

Silk = x = 1.5 yards

Cotton = y = 2.75 yards

Step-by-step explanation:

x + y = 4.25

16.90x + 4y = 36.35

1. The solution to the equation represent number of yards of silk and number of yards of cotton bought.

x + y = 4.25 (1)

16.90x + 4y = 36.35 (2)

Multiply (1) by 4

4x + 4y = 17 (3)

16.90x + 4y = 36.35 (2)

Subtract (3) from (2)

16.90x - 4x = 36.35 - 17

12.90x = 19.35

Divide both sides by 12.90

x = 19.35 / 12.90

= 1.5

x = 1.5 yards

Substitute x = 1.5 yards into (1)

x + y = 4.25

1.5 + y = 4.25

y = 4.25 - 1.5

= 2.75

y = 2.75 yards

Silk = x = 1.5 yards

Cotton = y = 2.75 yards

8 0

2 years ago

Solve the inequality<br> x2-x-12 < 0<br> +

Olin [163]

Step-by-step explanation:

x2-x-12<0

x2-x<12

x=12

4 0

2 years ago

Read 2 more answers

Find the perimeter of quadrilateral ABCD with vertices A=(1,1) B=(4,4) C=(7,1) D=(4,-2). Explain your answer.

Vanyuwa [196]

we have the coordinates of ABCD

there are 2 ways of doing this one is you find the distance of ab, bc, cd and da and then add the answers together. there is another way but i dont remember it properly so i am just gonna do it this way

distance between 2 point = $\sqrt{(x_B-x_A)^2+(y_B-y_A)^2}$

$d = \sqrt {(4 - 1)^2 + (4 - 1)^2}$

$d = \sqrt {(3)^2 + (3)^2}$

$d = \sqrt {9 + 9}$

$d = \sqrt 18$

AB = 4.24

now repeat the same with all

BC= 4.24

CD= 4.24

DA= 4.24

so its a square with all the same sides so perimeter is 4 x 4.24

perimeter is 16.96

hope this helps

mark me as brainliest please

3 0

2 years ago

Brian is finishing a meal at his favorite restaurant. The check shows that the cost of the food is 42 dollars. He adds a 15% tip

Serga [27]

$42 \times (100\% + 15\%) \\ = 42 \times 115\% \\ = 48.3$

Total amount of Brian paid is $48.30.

Hope this helps. - M

6 0

2 years ago

Read 2 more answers