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3 years ago

40% of ? =240 can anybody slove it

Mathematics

2 answers:

Sav [38]3 years ago

7 0

I am not sure about the answer.

vovangra [49]3 years ago

5 0

Answer: 600

Step-by-step explanation: Let's first rewrite this problem to say 40% of what number is 240.

To answer the question 40% of what number is 240, we translate the question into an equation. First we have 40% which we need to write as a decimal. To write 40% as a decimal, we move the decimal point 2 places to the left. Filling in the missing position with a zero, we get 0.4.

Next we have "of what number" which means times x, "is 240" equals 240.

Now we have the equation (0.40)(x) = 240.

Now to solve for x, since x is being multiplied by 0.40, we need to divide by 0.40 on both sides of the equation. On the left side of the equation the 0.40's cancel and we have x. On the right side of the equation we have 240 divided by 0.40 which is 600.

This means that x = 600.

This means that 40% of 600 is 250.

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Which month has the highest temperature

julsineya [31]

Answer:

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Step-by-step explanation:

8 0

3 years ago

The graph of $y=ax^2+bx+c$ passes through points $(0,5)$, $(1,10)$, and $(2,19)$. Find $a+b+c$.

MAVERICK [17]

Answer:

$a+b+c=10$

Step-by-step explanation:

We are given that the graph of the equation:

$y=ax^2+bx+c$

Passes through the three points (0, 5), (1, 10), and (2, 19).

And we want to find the value of (a + b + c).

First, since the graph passes through (0, 5), its y-intercept or c is 5. Hence:

$y=ax^2+bx+5$

Next, since the graph passes through (1, 10), when x = 1, y = 10. Substitute:

$(10)=a(1)^2+b(1)+5$

Simplify:

$5=a+b$

The point (2, 19) tells us that when x = 2, y = 19. Substitute:

$(19)=a(2)^2+b(2)+5$

Simplify:

$14=4a+2b$

This yields a system of equations:

$\begin{cases} 5 = a + b \\ 14 = 4a + 2b\end{cases}$

Solve the system. We can do so using elimination (or any other method you prefer). Multiply the first equation by negative two:

$-10=-2a-2b$

Add the two equations together:

$(-10)+(14)=(-2a+4a)+(-2b+2b)$

Combine like terms:

$4 = 2a$

Hence:

$a=2$

Using the first equation:

$5=(2)+b\Rightarrow b=3$

Therefore, our equation is:

$y=2x^2+3x+5$

Thus, the value of (a + b + c) will be:

$a+b+c = (2) + (3) + (5) = 10$

7 0

3 years ago

. You are mailing a gift box that is 18 inches by 8 inches by 12 inches. You

vekshin1

Cubic inches of first box = 18 x 8 x 12 = 1,728 cubic inches

Cubic inches of larger box = 20 x 12 x 15 = 3,600 cubic inches.

Cubic inches for packing foam = 3600 - 1728 = 1,872 cubic inches

Answer: 1,872 cubic inches

4 0

2 years ago

Which data set has the largest range? A. 55, 57, 59, 60, 61, 49, 48 B. 21, 25, 14, 16, 29, 22, 20 C. 12, 15, 16, 19, 18, 15, 27

irina [24]

Answer:

Step-by-step explanation:

Data D has the largest range.

Data A: 61-48=13

Data B: 29-14=15

Data C:27-12=15

Data D:54-31=23

8 0

2 years ago

Read 2 more answers

Simplify the expression square root 100 over 49

Ilia_Sergeevich [38]

Just plug in the square root of 100 in your calculator (10) and then either leave it as 10/49 or simplify it to a decimal...depending on what your teacher is expecting from you.

5 0

3 years ago

40% of ? =240 can anybody slove it​

40% of ? =240 can anybody slove it