Which expression is equivalent to 1/5(150x-80y+50-50x-25y+20)

Answer:

21.8 cm

Step-by-step explanation:

[tex] \\ 180 - 75 - 31.8 = 37.2 \\ \frac{ \sin(75) }{22} = \frac{ \sin(31.8) }{12} = \frac{ \sin(73.2) }{a} \\ a = \frac{22 \times \sin(73.2) }{ \sin(75) } = \\ a = \frac{21.06}{0.9659} = 21.8[/tex]

Answer:

If A(t) represents the amount of salt in the tank at time t, the correct differential equation for A is is dA/dt =  15 - 0.005A

Option C) dA/dt =  15 - 0.005A is the correction Answer

Step-by-step explanation:

Given the data in the question;

If A(t) represents the amount of salt in the tank at time t, the correct differential equation for A is?

dA/dt = rate in - rate out

first we determine the rate in and rate out;

rate in = 3pound/gallon × 5gallons/min = 15 pound/min

rate out = A pounds/1000gallons × 5gallons/min  = 5Ag/1000pounds/min

= 0.005A pounds/min

so we substitute

dA/dt = rate in - rate out

dA/dt =  15 - 0.005A

Therefore, If A(t) represents the amount of salt in the tank at time t, the correct differential equation for A is is dA/dt =  15 - 0.005A

Option C) dA/dt =  15 - 0.005A is the correction Answer

Answer:

2/3 * 1/3 = 2/9

Step-by-step explanation:

You see the top 2 lines being shaded which is 2/3's of the whole square.

The second shaded part only covers 1/3 of the whole square.

Thus, you multiply both parts to figure out the darkest shaded part!

Answer:

3 and -10 to get 30

4 and -11 to get -7

Step-by-step explanation:

3 * -10 = -30

4 + (-11) = 4 - 11 = -7

Answer:

Step-by-step explanation:

Let b>a

b-a=63

b=63+a

a+b=111, substituting 63+a from above in this equation gives you

a+63+a=111

2a+63=111

2a=48

a=24, since b=63+a

b=63+24

b=87 so the two numbers are

24 and 87

Answer:

the range would be 6.7 or if you want it to be rounded up, it would be 7.

Step-by-step explanation:

you subtract the highest number by the lowest number. 9.1-2.4= 6.7 or if you need it to be rounded, 7.

The range of the data set given is 6.7.

In statistics, the range of a set of data is the difference between the largest and smallest values, the result of subtracting the sample maximum and minimum. It is expressed in the same units as the data.

Given is a data set, we need to find the range of the data set,

S = 6.5, 7.6, 9.1, 2.4, 8.8​

The range = max value - min value

= 9.1 - 2.4 = 6.7

Hence, the range of the data set given is 6.7.

Learn more about range, click;

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Answer:

x - 4y = 8

Step-by-step explanation:

I know it is right

Answer:

15w

Step-by-step explanation:

5+10=15 ..........,................ I think.

Answer:

2/8

Step-by-step explanation:

I think this is subtraction (if not just tell me i'll edit)

6/8 - 2/4 = 6/8 - 4/8 = 2/8

Answer:

4/8

Step-by-step explanation:

2/4 is equivalent to 4/8

She was 2/8 left over btw

Answer:

3d + 1

I'm pretty sure it's the same thing.

Answer: 9b+6

Step-by-step explanation:

Answer:

3 2/5 cups remaining

Step-by-step explanation:

To subtract fractions, they need a common denominator. I am using 5.

7 is equal to 35/5. Make 3-3/5 into an improper fraction of 18/5.

Now subtract: 35 - 18 = 17. There is 17/5 remaining.

Make it into a mixed number and you will get 3 2/5 remaining.

Here sorry if this doesn't help

Answer:

12 min each student

Step-by-step explanation:

Answer:

Yes!

Step-by-step explanation:

Answer:

C becausee I'm trying to help

Answer:

0

Step-by-step explanation:

Answer:

His savings will last 2 months

Step-by-step explanation:

Kris has $3500

he has to pay $1300 a month=

2 months

Answer:

Step-by-step explanation:

Margin of Error = Zcritical * Standard error

Zcritical at 5% confidence interval

Z0.065

Answer: D

Step-by-step explanation: you just got coconut malled send this to a friend to totally coconut mall them (D is correct)

Answer:

d, 40% !

Step-by-step explanation:

this one, you can use long division ! since the faction of apple to all fruit is 6/15, you divide 6 by 15. you would get the decimal 0.4

in order to make that a percentage, you'd just move the decimal two places to the right, then add a % !! so it's 40% !!

i really hope this helped!

Answer:

Sorry

Step-by-step explanation:

Your pictures don't open

Answer:

A number used to multiply a variable. Example: 6z means 6 times z, and "z" is a variable, so 6 is a coefficient. Variables with no number have a coefficient of 1.

Step-by-step explanation:

Answer:

2.99 is the amount that is being taken off and the final price is $26.91

Step-by-step explanation:

Answer:

The 9th term will be -24

Step-by-step explanation:

The 9th term will be equal to

[tex]b_{n}[/tex] = - 8 - 2(n - 1)

[tex]b_{9}[/tex] = - 8 - 2(9 - 1)

[tex]b_{9}[/tex] = - 8 - 18 + 2

[tex]b_{9}[/tex] = - 24

Answer:

c. 15cm^2

Step-by-step explanation:

Answer:

c. 15 cm

Step-by-step explanation:

Area is multiplication of height and length, (or whatever you call it) and 5 multiplied by 3=15

Answer:

n=189

Step-by-step explanation:

[tex]n-63=126\\n=126+63\\n=189[/tex]

I hope this helps! :)

Brainliest? ✨

Answer:

I love algebra anyways

The ans is in the picture with the  steps how i got it

(hope this helps can i plz have brainlist :D hehe)

Step-by-step explanation:

Answer:

Step-by-step explanation:

I assume that they want the value of a when the solution exists.

2(ax+3y)+2x-6y=2(-5)+10

2ax+6y+2x-6y=-10+10

2ax+2x=0

ax+x=0

ax=-x

a=-1

You could then solve for x and y if you wanted x=5 and y=0

Unless a was a typo :)

Answer: 32.78

Step-by-step explanation:

x= 139°

180-41= 139°

hope this helped:)