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3 years ago

8/6 20/x the figures are similar find x

1 answer:

6 0

The process:

8/6 = 20/x

You would have to cross multiply first.

8 20 6×20= 120
6 x 8×x=8x

Then you rearrange the equation,

120=8x

And you divide by 8 ( because it has the variable next to it)

120÷8=15

So, x=15

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if the freshmen class students has 11 more boys than girls determine how many of each are in the class

Tems11 [23]

Answer:

how many in all? how many girls?

7 0

3 years ago

How many matches are needed to form figure number 9 and 17? explain

saveliy_v [14]

Answer:

Please find the complete question in the attached file.

Step-by-step explanation:

For point 1:

At this point we make up triangles for the first one makes up by 3 matches figure 2 make up by 5 matches figure 3 makes up by 7 matches.

For point 2:

$4 \ \ 5\ \ 6\ \ 7\ \ 8$ you can try to

$9 \ \ 11\ \ 13 \ \ 15 \ \ 17$ draw to find values

For point 3:

number of matches $= 1+2 \times \ figure\ number\\\\$

For point 4:

$1+2 \times 9=19 \ \ (use \ law \ of\ (iii)) \\\\1+2 \times 17=35$

3 0

4 years ago

Which graph represents the inequality y≥1/3x-1

Crazy boy [7]

Answer: c

Step-by-step explanation:

3 0

3 years ago

3. Charles and Jaden share a reward of $63 in a ratio of 2 : 5. How much does Jaden get?

marissa [1.9K]

Answer:

Jaden received: $45

Step-by-step explanation:

$63 : 7 = 9 => $9 * 5 = $45

3 0

3 years ago

3) x-y = 3<br> | 7x-y=-3

lara [203]

Answer:

Y=2.37

Step-by-step explanation;

Make the top equation solve for x, x=3-y

subsitute (x=3-y) into 7x-y=-3

Get 7(3-y)-y=-3

use the distributive property and get 21-7y-y=-3

Combine like terms 21-8y=-3

Subtract 21 on both sides, -8y=-19

Divide by -8 on both sides

y=2.37

3 0

4 years ago