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zloy xaker [14]
3 years ago
9

330% of 21 is what number?

Mathematics
1 answer:
kotykmax [81]3 years ago
4 0

Answer: 69.3

Step-by-step explanation:

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What is the value of x and the length of segment DE?
disa [49]

Answer:

x  = 6.6 and DE = 16.2

Step-by-step explanation:

The question is incomplete as the attachment to solve segment DE is missing. However, see attached for complete question.

Given

\frac{5}{9}= \frac{9}{(2x+3)}

Required

Find x

Length of DE

To find x, we need to first simplify the given equation

\frac{5}{9}= \frac{9}{(2x+3)}

Multiply both sides by 9(2x+3)

\frac{5}{9} * 9(2x + 3) = \frac{9}{(2x+3)} * 9(2x + 3)

5(2x + 3) = 9(9)

10x + 15 = 81

Subtract 15 from both sides

10x + 15 - 15 = 81 - 15

10x  = 66

Divide both sides by 10

\frac{10x}{10}  = \frac{66}{10}

x  = \frac{66}{10}

x  = 6.6

From the attached;

DE = 2x + 3

Substitute 6.6 for x

DE = 2(6.6) + 3

DE = 13.2 + 3

DE = 16.2

Hence x  = 6.6 and DE = 16.2

3 0
3 years ago
Find the total surface area of this cuboid.
-Dominant- [34]

Step-by-step explanation:

I just learned this in class lol

Find the area of all the sides.

This cubiod has 6 sides.

6 x 5 = 30

6 x 5 = 30

4 x 5 = 20

4 x 5 = 20

6 x 4 = 24

6 x 4 = 24

30 + 30 + 20 + 20 + 24 + 24 = 148

Thefore, the surface area of this cuboid is 148.

Hope this helps! If it did, please mark it as brainliest! It would help a lot! Thanks! :D

8 0
3 years ago
Evaluate -a+(-b)−a+(−b)minus, a, plus, left parenthesis, minus, b, right parenthesis where a = 6.05a=6.05a, equals, 6, point, 05
swat32

Answer: -9.66

Step-by-step explanation:

Here the given expression,   -a + (-b)

Where  a = 6.05 and b =3.61

By putting the given values of a and b in the given expression,

We get,

- 6.05 + ( -3.61)

= -6.05 - 3.61

= - (6.05 + 3.61)

= - 9.66

3 0
3 years ago
Read 2 more answers
Answer with a complete sentence. Eric and Jan leave their house at one o-clock, following the same route. Jan walks at a steady
xenn [34]

Answer:

Eric will catch up with Jan at 3 o-clock.

Idk I really tried sorry if its wrong lol

7 0
3 years ago
Michael has to pay $300 rent. He gets paid $18 per hour. Write an equation that represents his profit, y, after working x hours.
mixer [17]

Answer:

A.) 300 = $18x

B.) 277.50 = $9.25x

C.) 360 years

Step-by-step explanation:

5 0
3 years ago
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