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My name is Ann [436]
1 year ago
8

Solve the right triangle ABC, with C = 90°.

Mathematics
1 answer:
Yanka [14]1 year ago
6 0
Answers are as follows
B = 51.5
a = 34.6
c = 55.6
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The ratio of boys to girls at the grammar school is 5:7. If there are 95 boys, how many girl are there? Show your work.
VLD [36.1K]

Answer:

B

Let total number of students be x.

Ratio of boys to girls= 5:7

=5x:7x

According to question,

5x =95

Or x=95/5

x=19

Now,

Number of girls =7x

=7*19

=133

3 0
3 years ago
The function f(x) = -(x+5)(x + 1) is shown
FinnZ [79.3K]

Answer:

all real numbers less than or equal to -4

Step-by-step explanation:

most of the numbers are negative less are positive

i need more information to help you better.

4 0
2 years ago
#5 Antonio and Abby had the same nimber of paperclips. After Antonio gave 30 paperclips to Abby, Abby had twice as many papercli
Kay [80]

Answer:

#5: 180 paperclips in total.

#6: 126 stamps in total.

#7: Elena should give Lucy 15 colored pencils.

Step-by-step explanation:

This explanation solves each question by setting a single unknown, x.

<h3>#5</h3>

Let x the initial number of paperclips of Antonio. That should also be the number of Abby's paperclips.

Initially:

  • Antonio: x paperclips;
  • Abby: x paperclips.

Antonio gives 30 paperclips to Abby. After that,

  • Antonio: (x - 30) paperclips;
  • Abby: x + 30 paperclips.

Abby now possess twice as many paperclips as Antonio does. In other words,

2(x - 30) = x + 30.

By the distributive property:

2x - 60 = x + 30.

Substract x - 60 from both sides

x = 30 - (-60) = 90.

Both Antonio and Abby initially possess 90 paperclips. That's 180 in total.

<h3>#6</h3>

Similarly, let x be the number of Emily's stamps. That should be the same as the number of Jasmine's stamps.

Initially:

  • Emily: x stamps;
  • Jasmine: x stamps.

After Emily gives 42 stamps to Jasmine:

  • Emily: x-42 stamps;
  • Jasmine: x+42 stamps.

Jasmine now possesses twice as many stamps as Emily does. In other words,

2(x-42) = x+42.

x = 42 + 2\times 42 = 126.

Jasmine used to possess 126 stamps. Now she possesses 126 + 42 = 168 stamps after receiving 42 stamps from Emily.

<h3>#7</h3>

Let the number of pencils that Elena needs to give to Lucy be x.

Initially:

  • Elena: 60 pencils;
  • Lucy: 26 pencils.

After Elena gives x pencils to Lucy:

  • Elena: 60 - x pencils;
  • Lucy: 26 + x pencils.

Elena should now possess four more pencils than Lucy does. In other words,

\underbrace{60 - x}_{\text{Elena's}} = \underbrace{(26 + x)}_{\text{Lucy's}} +4.

2x = 30.

x = 15.

8 0
2 years ago
*WILL MARK BRAINLIEST*
devlian [24]
A. multiply all the numbers together to find the possible outcomes

4 x 4 = 16

There are 16 different jacket-shirt outfits Ardell have.

They will not be the same color = 4 x 3

4 x 3 = 12

12/16 = 0.75, or a 75% chance they will not be the same color


hope this helps
6 0
3 years ago
Read 2 more answers
Find the number of trucks for 128 vehicles... table shown above
WARRIOR [948]

Answer:

48

Step-by-step explanation:

it is 48 because you divide 128 by the number of vehicles and then you multiply that number you get (16) by the number of trucks and there you go 48 :)

4 0
3 years ago
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