Solve the equation:  4 1/5 + b = 9 3/5

Answers

Answer 1
Answer: 4 (1)/(5)+ b = 9 (3)/(5) \ \ | (-4(1)/(5))\n \n4 (1)/(5 )-4 (1)/(5)+ b = 9 (3)/(5)-4 (1)/(5)\n \nb= 5(2)/(5)=5.4


Answer 2
Answer: 4 (1)/(5) + b = 9 (3)/(5) \n\nb= 9 (3)/(5)-4 (1)/(5) \n\nb=5 (2)/(5)

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I WILL GIVE 10-20 POINTS!!! NEED HELP! What is the mean of Variable A?

Answers


The meanis

                 (the sum of the values of all the points)
divided by
                 (thenumber of points).

There are 10 points on the graph.
Their 'A' values add up to 50.
The mean of the 'A' values is (50/10) = 5 .

Write a fraction with the denominator of 6 that is greater than 2/4.

Answers

It has to be greater than ½, so anything 4/6 and greater would be acceptable.

How to solve 5^(2x-3)=125

Answers

Answer:

x = 3

Step-by-step explanation:

Solve for x over the integers:

5^(2 x - 3) = 125

Multiply both sides by 125:

5^(2 x) = 15625

15625 = 5^6:

5^(2 x) = 5^6

Equate exponents of 5 on both sides:

2 x = 6

All equations give x = 3 as the solution:

Answer:  x = 3

Answer:

x=14 or 14x

Step-by-step explanation:

5*2=10

5*3=15

10x-15=125

    +15=+15

10x=140

/10=/10

x=14

Luisa mows lawns during the summer.  She charges $15 if she cuts the grass but charges $5 more if she also trims the grass.  Last week she trimmed 5 more yards than she cut.  If she made $415 last week, how many yards did she trim?

 

Answers

Well, those 5 extra yards had given her an extra $100, so the yards she cut, plus those she trimmed, had given her $315. To cut one and trim another one she takes $35. This means 9 yards were cut and 14 trimmed. (do a division, 315/35=9).

Answer:

315÷35=9

Step-by-step explanation:

5 extra yards had given her an extra $100, so the yards she cut, plus those she trimmed, had given her $315. To cut one and trim another one she takes $35. This means 9 yards were cut and 14 trimmed. (315÷35=9)

Please help Evaluate this equation!!

Answers

Answer:

1.)-8

2.)-5

3.)4

Step-by-step explanation:

So, the function f(x)=3x-5

The questions say "If you were to substitute these numbers what answer would you get?"

Understanding this,

First question is with x=-1

f(-1)=3(-1)-5

f(-1)=-3-5=-8

_____________________________________

f(0)=3(0)-5

f(0)=0-5=-5

_____________________________________

f(3)=3(3)-5

f(3)=9-5=4

Which ordered pair in the form (a, b) is a solution of this equation?7a – 5b = 28


A.
(4, 0)

B.
(0, 4)

C.
(–2, –3)

D.
(–3, –2)

Answers

A. \n (4,0) \na=4 \n b=0 \n \Downarrow \n 7 * 4-5 * 0 \stackrel{?}{=} 28 \n 28-0 \stackrel{?}{=} 28 \n 28\stackrel{?}{=} 28 \n 28=28 \ntrue

B. \n (0,4) \na=0 \n b=4 \n \Downarrow \n7 * 0 - 5 * 4 \stackrel{?}{=} 28 \n0-20 \stackrel{?}{=} 28 \n-20 \stackrel{?}{=} 28 \n-20 \not= 28 \nnot \ true

C. \n(-2,-3) \na=-2 \n b=-3 \n \Downarrow \n7 * (-2) - 5 * (-3) \stackrel{?}{=} 28 \n-14+15 \stackrel{?}{=} 28 \n1 \stackrel{?}{=} 28 \n1 \not= 28 \nnot \ true

D. \n(-3,-2) \na=-3 \n b=-2 \n \Downarrow \n7 * (-3) -5 * (-2) \stackrel{?}{=} 28 \n-21 +10 \stackrel{?}{=} 28 \n-11 \stackrel{?}{=} 28 \n-11 \not= 28 \n not \ true

The answer is A.