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3 years ago

Evaluate the expression when a=3 and b=24 b-4a

Mathematics

1 answer:

Inessa05 [86]3 years ago

5 0

Answer:

12.

Step-by-step explanation:

$b - 4a$

Substitute this equation with a=3 and b=24:

$24 - 4(3)$

$24 - 12$

$12$

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A circle has a diameter of 26 units. What is the area of the circle to the nearest hundredth of a square unit.

iris [78.8K]

9514 1404 393

Answer:

530.93 square units

Step-by-step explanation:

The area of a circle in terms of diameter can be found by ...

A = (π/4)d²

A = 3.14159/4×26² ≈ 530.929

Rounded to hundredths, the area of the circle is 530.93 square units.

7 0

2 years ago

The volume of a wooden block is 6.3 cubic inches .this equivalent to how many cubic centimeters

Natalija [7]

Answer:

$103.24\ cm^3$

Step-by-step explanation:

we know that

$1\ in=2.54\ cm$

we have

$6.3\ in^3$

Convert in³ to cm³

$6.3\ in^3=6.3(2.54^3)=103.24\ cm^3$

5 0

3 years ago

Tom is going to turn little Quacker into roast duck! He goes to the grocery store to get some salt and pepper seasoning to his d

MAVERICK [17]

Answer:

He can buy 3 scoops of salts and 4 scoops of pepper or 4 scoops of salts and 3 scoops of pepper spent maximum.

Step-by-step explanation:

Given that:

The cost of salt = 50 cents / scoop =$ 0.5 / scoop

The cost of pepper =75 cents / scoop = $ 0.75 / scoop

Let he buys x scoops of salt and y scoops of pepper.

As he plans to bring home no more than 8 scoops of seasoning, so

$x+y\leq8\cdots(i)$

The total cost of x scoops of salt and y scoops of pepper = 0.5x+0.75y

As he wants to spend less than $5, so

$0.5x+0.75y$

Here, $x\geq 0, y \geq 0$ and x,y are counting numbers.

On plotting the graph of equations (ii) and (ii), the possible solution is the integral values in the shaded as shown in the figure.

The maximum possible integral values, for expances less than $5, are (x,y)=(3,4), (4,3).

Hence, he can buy 3 scoops of salts and 4 scoops of pepper or 4 scoops of salts and 3 scoops of pepper to spent maximum.

5 0

3 years ago

Please answer correctly !!!!!!!!!!!!!!! Will mark brainliest !!!!!!!!!!!!!!!!!!!! Please solve !!!!!!!!!!!!!!!!!!!!!

SOVA2 [1]

<h2><em>ts = 4x - 7 </em></h2><h2><em> </em></h2><h2><em>sv = 5x - 15 </em></h2><h2><em> </em></h2><h2><em>If s is the midpoint of ts and sv, then ts = sv, so </em></h2><h2><em> </em></h2><h2><em>4x - 7 = 5x - 15 </em></h2><h2><em> </em></h2><h2><em>5x - 4x = 15 - 7 </em></h2><h2><em> </em></h2><h2><em>x = 8 </em></h2><h2><em> </em></h2><h2><u><em>Not 100% sure </em></u></h2>

4 0

3 years ago

-3|x|+2x-1 if x=-5<br> i need help with this or else i will not get my computer

DaniilM [7]

Answer:

-26

Step-by-step explanation:

Hello There!

For this problem all we have to do is plug in -5 into x and calculate the value

so..

-3|-5|+2(-5)-1

so first things first | | means absolute value

The absolute values of -5 is 5 so the equation would be

-3(5) + 2(-5) - 1

-3*5=-15

2*-5=-10

-15-10=-25

-25-1=-26

so the answer would be -26

4 0

2 years ago