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3 years ago

Which are useful ways of finding the value of a variable

Mathematics

1 answer:

Snowcat [4.5K]3 years ago

8 0

Answer:

writing an equation or drawing a graph

Step-by-step explanation:

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PLEASE HELP ME AND MY FRIEND NEED THIS QUESTION ANSWERED PLEASE HELP

Bas_tet [7]

Answer:

$V_{cone} =65.94\: cm^3$

Step-by-step explanation:

Height of cone (h) = 7 cm

Base radius (r) = 3 cm

Formula for Volume of cone is given as:

$V_{cone} = \frac{1}{3}\pi r^2h$

Plugging the values of h and r in the above formula, we find:

$V_{cone} = \frac{1}{3}(3.14) (3)^2(7)$

$\implies V_{cone} = \frac{1}{\cancel 3}(3.14) (\cancel 9)(7)$

$\implies V_{cone} = (3.14) (3)(7)$

$\implies V_{cone} =65.94\: cm^3$

7 0

2 years ago

Please help ill give brainliest I need this answer

Sholpan [36]

Answer:50

Step-by-step explanation:8+7x =9x-4 2x =12 x =6 so 8+42=50

6 0

3 years ago

Read 2 more answers

A recipe uses 1/4 teaspoons of baking soda for every ½ cup of flour. What is the unit rate in cups per teaspoon?

Verizon [17]

Answer:

2 cups per teaspoon, 2 cups/1 tsp

Step-by-step explanation:

to get the teaspoon amount to 1 (you have to for a unit rate), you multiply both sides by 4.

1/2 x 4 = 2

1/4 x 4 = 1

8 0

3 years ago

Would the balance be positive or negative if this happened:

natka813 [3]

A- positive
B-negative
C-positive
A was positive because 5-2 would be positive 3.
B was negative because 8-12 would be negative 4.
C was positive because -5+8 is positive 3.

4 0

3 years ago

I have 30 question test and need 70% to pass how many questions can be wrong

alekssr [168]

Total questions are 30.

70% of 30
=30(70/100)
=21

So, the questions can be wrong are 30-21.
=9 questions..

Thanks!

3 0

3 years ago