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lions [1.4K]
3 years ago
6

Simplify the equation: 5d(7-3)- 16d+3x2da 10db 14dc 21dd 25d

Mathematics
1 answer:
Vanyuwa [196]3 years ago
5 0

Answer:

a 10d

Step-by-step explanation:

5d(7-3)- 16d+3*2d

Simplify what is inside the parenthesis first PEMDAS

5d(4) -16d +3*2d

Then we multiply and divide from left to right

5d(4) -16d +3*2d

20d -16d +3*2d

20d -16d+6d

Then we add and subtract from left to right

4d+6d

10d

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If gas prices are now $3.75 and they were up 10% from 6 months ago, how much were gas prices 6 months ago?
Hatshy [7]

Given

gas prices are now $3.75 and it up 10% from 6 months ago.

Find out how much were gas prices 6 months ago.

To proof

gas prices now = $3.75

let the gas price 6 month ago = x

gas price now is rise up 10% from 6 months ago

First write 10% in simpler form

= \frac{10}{100}

= 0.1

Now the equation becomes

0.1x + x = 3.75

1.1x = 3.75

x =\frac{3.75}{1.1}

x = 3.41 (approx)

Thus gas prices 6 months ago be $ 3.41 (approx )

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7 0
3 years ago
Anyone know this please???
Kazeer [188]

Answer: Choice A

The triangles are congruent because both the corresponding sides of the triangles and the corresponding angles of the triangles are congruent.

==============================================

Explanation:

Congruent triangles are identical copies of one another. This means the corresponding pieces must be the same.

It's like saying two houses are identical, so that means the all the various parts (eg: front door, windows, etc) must be identical. If let's say the two front doors were different, then the houses wouldn't be completely identical.

Going back to the triangles, we know that the sides are congruent by the tickmarks

  • side MN = side RS (single tickmark)
  • side NP = side ST (double tickmarks)
  • side MP = side RT (triple tickmarks)

That takes care of the first part of choice A.

And similarly, the angle markers tell us which angles are congruent

  • angle M = angle R  (single arc)
  • angle N = angle S (90 degree angle marker)
  • angle P = angle T (double arc)

That concludes the second part of choice A.

6 0
2 years ago
Carl is boarding a plane. He has 222 checked bags of equal weight and a backpack that weighs 4 Write an equation to determine th
dangina [55]

Answer: 2w + 4 = 35

Step-by-step explanation:

Carl's two checked bags and his one backpack together weigh 35kg.

Carl's two checked bags have equal weight so both their weight can be denoted as 2w.

Equation is;

2w + 4 = 35

If you were to solve;

2w + 4 = 35

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4 0
2 years ago
Can someone help me with this math homework please!
Zepler [3.9K]

Answer:

Step-by-step explanation:

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To eliminate the fraction, each term should be multiplied by 4

ANS:option c

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0.05 +0.1y = 0.12+0.06y

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Add 'b' to both sides

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5b + 6 = 6

Subtract 6 from both sides

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4y = 26-6

4y = 20

Divide bothe sides by 4

y = 20/4

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Ans: option c

6) '2x' is  subtracted from both side of the equation.

Ans: option a - subtraction property of equality

                     

8 0
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5-3/4y=1/6+5/3y<br> (please include steps)
vivado [14]
ANSWER

(I multiplied by 12 on both sides to get a whole number)

4 0
3 years ago
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