Which of these is a solution to the equation 2( x – 5) = 9 – 3 x + 6 + 8 + 3 x + 7? x = 80 x = 20 x = 40 x = 10

Answers

Answer 1
Answer:

The solution to the equation is x = 20.

Step-by-step explanation:

The equation is 2( x – 5) = 9 – 3 x + 6 + 8 + 3 x + 7

2x - 10 = 30

2x = 30+10

2x = 40

x = 40/2

x = 20


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Name an event that would be measured in days

Answers

An event measured in days would be something long enough that to measure it in hours would be too big of a number.

Event measurement;

An event is measured in days if it occurs for a long course of a time such that counting it in a number of hours or minutes would be too long to calculate.

An event measured in days would be something long enough that to measure it in hours would be too big of a number.

For example, the Olympics could be measured in days because it takes place over the course of several weeks, so keeping track of Day 1, Day 2, etc. would make more sense than counting by hours.

The things like sporting events or freak storms are measured in days or weeks. Depends. For weather, it could be hurricanes, tornados, or even large fires(not quite weather, but could be).

To know more about event measurement click the link given below.

brainly.com/question/1112264

Answer with explanation:

An event is measured in days if it occurs for a long course of a time such that counting it in number of hours or minutes would be too long to calculate in.

for example-

1) The happening of a Olympic games  or some other games that are held for a long course of a time could not be described in days.

2) Week:

a week has 7 days.

Kelly has 4 dimes and some nickels. The total value of her coins is $2.25. Write an equation for this.

Answers

Answer:

40+5x=225

Step-by-step explanation:

We know that

1 dime = 10 cents

1 nickel = 5 cents

1 dollar = 100 cents

It is given that Kelly has 4 dimes and some nickels.  

Let x be the number of nickels.

\text{Total value}=4(10)+x(5)

\text{Total value}=40+5x         ... (1)

The total value of her coins is $2.25.  

Total value = $2.25 = 225 cents         ...(2)

From (1) and (2) we get

40+5x=225

5x=225-40

5x=185

x=37

The number of nickels is 37.

Hence, the required equation is 40+5x=225.

total = value of nickels(n) + value of dimes
2.25 = 0.05n + 0.40

Lines a and b in the figure above are parallel. What is the value of p? Select one:
A. 12
B. 14
C. 20
D. 24

(Please help!)

Answers

It will be c- 20:
4q and 2(q+30) have to equal the same therefore q=30 which makes both these equations equal.
3p + 4q then have to equal 180 as they are on a straight line so you know q=30 so 4x30=120 so 180-120=60
Then 60/3=20 and that is your answer.
Hope this helps :)

Solve the equation x/4+5/8=3/8

Answers

X/4 +5/8 = 3/8

X/4 = 3/8-5/8

X/4 = (3-5)/8

X/4 = -2/8

Multiply both sides by 4 we get

4x/4 = -8/8

X = -1

multiply or divide and then simplify

(x+1)^2/(x-5)*(x-3)/(x+1)

3x+3/2 divided by 4/9x+9

4a/3a-3*3(a-1)/16a

x+2/x-1 divided by 5x+10/x-2

Answers

((x+1)^2)/(x-5)\cdot(x-3)/(x+1)=(x+1)/(x-5)\cdot(x-3)/(1)=((x+1)(x-3))/(x-5)=(x^2-3x+x-3)/(x-5)=(x^2-2x-3)/(x-5)\n\nD:x\neq5\ \wedge\ x\neq-1


(3x+3)/(2):(4)/(9x+9)=(3x+3)/(2)\cdot(9x+9)/(4)=(27x^2+27x+27x+27)/(8)=(27x^2+54x+27)/(8)\n\nD:x\neq1


(4a)/(3a-3)\cdot(3(a-1))/(16a)=(1)/(3a-3)\cdot(3a-3)/(4a)=(1)/(4a)\n\nD:a\neq1\ \wedge\ a\neq0


(x+2)/(x-1):(5x+10)/(x-2)=(x+2)/(x-1)\cdot(x-2)/(5x+10)=(x+2)/(x-1)\cdot(x-2)/(5(x+2))=(1)/(x-1)\cdot(x-2)/(5)=(x-2)/(5x-5)\n\nD:x\neq1\ \wedge\ x\neq2\ \wedge\ x\neq-2

Write a number sentence to subtract 3 tens from 93

Answers

93 - 30 = 63
I hope I helped! Let me know if you need more help!
93-30 because 3 tens means
 
30 it is
 
93 - 30