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2 years ago

A +19 =43 can someone help me

Mathematics

2 answers:

Vika [28.1K]2 years ago

4 0

Answer:

A= 24!

Step-by-step explanation:

just subtract 19 from 43, and that will give you what A equals!

lora16 [44]2 years ago

3 0

Answer:

Step-by-step explanation:

43-19= 24

24+19= 43

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"During the tryouts for a university pep band, there were 4 trumpet players, 12 drummers, and 7 saxophonists. How many ways can

sladkih [1.3K]

The ways can the jazz band be selected so there are 2 trumpet players, 5 drummers, and 3 saxophonists is given below .

Step-by-step explanation:

Let's first do the math with only the trumpet,drummer and saxophonists player.

There are 4 Trumpet Player. There are 4 choices of trumpet players. Which means for each drummer, there are 4 groups of musicians:

T 1 D1S1

T 1 D2S2

and so on

So if there are 4 groups of musicians for each Trumpet ,12 drummer and there are 7 saxophonists , we get 12 groups.

It would be the product of

4T2, 12D5 and 7S3

That is 6*792*35=166,320

7 0

3 years ago

Please help me out The equation 9(w + 7) = 27 solved in several steps below. For each step, choose the reason that best justifie

Vaselesa [24]

9w+63=27

27-63= -36

-36•/•9=-4

answer: -4=w

hope this helps

4 0

3 years ago

Log_{7 }(5 - 3x) Find the derivative

V125BC [204]

Let y be the expression you want to differentiate:

$y=\log_7(5-3x) \implies 7^y=5-3x$

Now,

$7^y=e^{\ln(7^y)}=e^{y\ln(7)}$

Use the chain rule to differentiate both sides with respect to x :

$\ln(7)e^{y\ln(7)}\dfrac{\mathrm dy}{\mathrm dx}=-3$

Solve for dy/dx :

$\ln(7)7^y\dfrac{\mathrm dy}{\mathrm dx}=-3$

$\dfrac{\mathrm dy}{\mathrm dx}=-\dfrac3{\ln(7)7^y}$

$\dfrac{\mathrm dy}{\mathrm dx}=\boxed{-\dfrac3{\ln(7)(5-3x)}}$

6 0

2 years ago

36.25= 45.5% of ____

aev [14]

Answer:

36.25 is equal to the 45.5% of 79.67

Step-by-step explanation:

To solve this you just have to find the value that represents the 100%.

To do this, you can use the Rule of Three that allows you to solve problems of proportions.

In this case, you know that the 45.5% of the magnitude X is 36.25, now you have to find the value which corresponds to the 100%.

Mathematically it will be:

$\frac{X}{36.25} =\frac{100}{45.5}$

Then you have to solve the equation to find X:

$X=\frac{100}{45.5}*36.25$

And finally, the answer is:

$X=79.67$

7 0

2 years ago

The area of the U.S. is about 3.931 million square miles. Approximately 570000 square miles are worked for food production. What

PSYCHO15rus [73]

Answer:

Step-by-step explanation:

Just estimating, about 15%

% = Land used for food production/ Total Area * 100

% = (570000 / 3.931 * 10^6) * 100%

% = 14.5%

3 0

3 years ago