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Ivenika [448]
3 years ago
7

Please can somebody respond with the step by step solution? I’m so confused

Mathematics
1 answer:
Helen [10]3 years ago
5 0

Answer:

please mark me as brainlist please

Step-by-step explanation:

Correct option is D)

By property of similar triangle, we have

DE

AB

=

DC

BC

=

CE

AC

3

4

=

4.8

BC

=

4.2

AC

⇒ BC=6.4 and AC=5.6

Hence CA=5.6cm,DA=6.4cm

yes u multiple and divided so ans caome 150

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To edit a manuscript, Miguel charges 12 dollars per hour for the first 4 hours and 15 dollars per hour after the first 4 hours.
aleksley [76]

Answer:

C = 12 + 15(x - 4)

C = 15x - 48

Step-by-step explanation:

Let the number of hours = t

The total amount Miguel earns =

C

To edit a manuscript, Miguel charges 12 dollars per hour for the first 4 hours and 15 dollars per hour after the first 4 hours.

C = 12 + 15(x - 4)

Expand the t

C = 12 + 15x - 60

C = 15x - 48

Therefore, an expression for the amount, in dollars, Miguel charges if it takes him t hours to edit a manuscript, where t>4 is given as:

C = 15x - 48

5 0
3 years ago
The perimeter of a rectangular is 58 cm. The length is 5 more than twice the width.
riadik2000 [5.3K]
<h3>Answer:</h3>

a) l = 5 + 2w

b) P = 2(l +w) = 2(5 +2w +w)

c) w = 8 cm, l = 21 cm

<h3>Explanation:</h3>

a) Using w for width, twice the width is 2w, and 5 more than that is 5+2w. This is your expression for l:

... l = 5 + 2w

b) The perimeter is the sum of the lengths of all sides, so is the sum of twice the length and twice the width.

... P = 2(l +w) = 2(5 +2w + w) . . . . substituting for l using the expression of (a)

c) Substituting the given perimeter, we have ...

... 58 = 2(5 +3w) = 10 + 6w . . . . . collect terms, eliminate parentheses

... 48 = 6w . . . . . . . . . . . . . . . . . . subtract 10

... 8 = w . . . . . . . . divide by 6

... l = 5 + 2·8 = 21 . . . . . find length using the formula for it

Dimensions are in centimeters, so we can write the solution as ...

  • width = 8 cm
  • length = 21 cm
6 0
3 years ago
Find the percent of markup round to the nearest tenth
Ilya [14]

The first step in solving this problem is to compute the amount of markup. You can do this by deducting the original price to the marked up price.

$70.00 - $35.50 = $34.50

To get the percent of markup, you have to divide the amount of markup to the original price.

$34.50 / $35.50 = 97.2%

3 0
3 years ago
please help me with this
alexandr402 [8]

Answer:

a ue  añoe ss et o   q

Step-by-step explanation:

6 0
3 years ago
Wich one is the solution???: 4(2x-1)=-3x+32<br><br><br>i dont understand this thing....
sweet-ann [11.9K]
First let’s multiply. 8x-4=-3x+32. Start collecting like terms on different sides. 8x+3x=32+4. 11x=36. x=36/11. x=3.27.
5 0
3 years ago
Read 2 more answers
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