3 years ago

What is substitution is math terms

1 answer:

6 0

Substitution is plugging in a value for a variable to help solve the problem or equation.

for example "Substitute 5 into x" means plug 5 into x

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balu736 [363]

Answer:

Area of circle = 9π

Step-by-step explanation:

Area of sector = $\frac{1}{2} \pi$

Its central angle = $\frac{1}{9}\pi \text{ radians}$

$\text{Area of sector} = \dfrac{\text{Central angle}}{2\pi} \times\text{Area of circle}$

$\text{Area of circle} = \text{Area of sector}\times\dfrac{2\pi}{\text{Central angle}}$

$A = \dfrac{1}{2}\pi\times\dfrac{2\pi}{\frac{1}{9}\pi} = 9\pi$

8 0

3 years ago

weqwewe [10]

Answer:

5/12

Step-by-step explanation:

1/4 of the cakes is 60 divided by 4 which is 15. That goes to Helen

20 go to Sue

so far, he has given away 35 cakes out of the 60

he is left with 25 cakes

that is 25/60 which can be simplified to 5/12

4 0

3 years ago

vova2212 [387]

The answer is D. I am sure of this. Brainpower? Have a great day!

8 0

3 years ago

evablogger [386]

The answer is C. 2x+3y=12

3 0

3 years ago

slava [35]

Answer:

57 adult tickets, 86 student tickets

7 0

2 years ago