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Akimi4 [234]
3 years ago
13

Which expression is 5y - 9x + 21y equivalent to after being simplified?

Mathematics
1 answer:
Nadya [2.5K]3 years ago
7 0

Answer:

26y-9x

Step-by-step explanation:

5y-9x+21y   Add 21y and 5y.

Hope this helps, have a great day:)

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Is 7/12 bigger than 1/2
Varvara68 [4.7K]
Lets think of it this way:-

1/2 is one half

Whats half of 12? 6 

Now, 7 is greater than 6, which means the fraction 7/12 is greater than 1/2

Answer: 7/12 is bigger 
7 0
3 years ago
Read 2 more answers
Find the value of z. round to the nearest hundredth
Svetradugi [14.3K]

ANSWER

C. 64.29

EXPLANATION

The bigger right triangle is similar to the smaller right triangle, therefore

\frac{30}{14}  =  \frac{z}{30}

Multiply both sides by 30;

30 \times  \frac{30}{14}  =  \frac{z}{30}  \times 30

Simplify

z =  \frac{900}{14}

z = 64.28571429

We correct to the nearest hundredthth to obtain,

z = 64.29

The correct choice is C.

3 0
4 years ago
There is a bag with 50 popsicles inside. 5
Allisa [31]

Answer:

25%

Step-by-step explanation:

We know that there are ten purple popsicles. Together without the purple popsicles, there are 40 popsicles in total. Therefore there is a 10/40 chance to get purple. We need to turn this into a percentage so we do (10 / 40) x 100. This would equal to 25%, therefore, there is a 25% probability to get a purple popsicle.

8 0
3 years ago
Surface area of cylinder
Vlad1618 [11]

Answer:

75.40 cm²

Step-by-step explanation:

SA = 2πrh + 2πr²

SA = 2π(2)(4) + 2π(2)²

SA = 50.27 + 25.13

SA = 75.40 cm²

3 0
3 years ago
-3x=x-(6-2x) solve it
frutty [35]

Answer:

x=1

Step-by-step explanation:

-3x=x-(6-2x)

-3x=x-6+2x

-3x=3x-6

6=3x+3x

6=6x

x=6/6

x=1

Best answer if it helped, please

3 0
3 years ago
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