2 years ago

Help pleaseee U-U thank you will mark brainly if right the surface area of a triangle!

Mathematics

2 answers:

kaheart [24]2 years ago

8 0

The answer would be B

Aliun [14]2 years ago

5 0

Answer:

Yea the guys is right. B

Step-by-step explanation:

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Twice the difference of a number and 9 equals 5.

emmasim [6.3K]

Answer:

Step-by-step explanation:

if the number is x then you know 2x-9=5

2x=14

x=7

so the number is 7

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The ratio 4/7:8/21 has a unit rate of 3/2 true or false

alekssr [168]

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Tell the teacher he got ratioed

Step-by-step explanation:

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Ria can paint a room in 4 hours. Destiny can paint the same room in 6 hours. How long would it take Ria and Destiny to paint the

Lerok [7]

Time taken by Ria to paint a room = 4 hours

Time taken by Destiny to paint a room = 6 hours

If they work together, they complete 1 job. So,

$\frac{1x}{4}+\frac{1x}{6}=1$

The LCD of 4 and 6 is 12

$\frac{3x+2x}{12}=1$

$\frac{5x}{12}=1$

$5x=12$

$x=\frac{12}{5}$

Hence, both of them can paint the room in $\frac{12}{5}$ hours or 2.4 hours.

4 0

3 years ago

Read 2 more answers

What is 7.0717 million in figures. ?

Brrunno [24]

7.0717 million

Lets see:

1 million = 1.000.000

So, 7.0717 million = 7.071.700

7.071.700 can be read as "seven million seventy one thousand and seven hunred"

If you wanna split it you can split in

seven million = 7 million

seventy one thousand = 71 thousand

seven hundred = 7 hundred

8 0

2 years ago