MATHEMATICS HIGH SCHOOL

3x+103+9x+61 help me solve quick

Answers

Answer 1
Answer:

Answer:

12x + 164

Step-by-step explanation:

3x + 103 + 9x + 61

rewrite it

3x + 9x + 103 + 61

add 3x and 9x

12x + 103 + 61

add 103 and 61

12x + 164

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Edie can paint a wall in 3 hours. Dan can paint the same wall in 6 hours. if they work together, how many hours will it take Edie and Dan to paint the wall?A. 1 hour B. 1.5 hours C. 2 hours D. 4.5 hours

At a concert, there are 3 times as many women as men. 3/5 of the men and 1/3 of the women wear glasses. There are 120 more women wearing glasses as men wearing glasses. How many people are at the concert?

Answers

w = women
m = men

w = 3m (from the first sentence)

1/3w - 3/5m = 120
subsitute 3m for w
1/3(3m) - 3/5m = 120
m - 3/5m = 120
2/5m = 120
2m = 600
m = 300

back to the original equation
w = 3m
w = 3(300)
w = 900

900 women + 300 men = 1200 people.

Which of the following formulas would find the lateral area of a right cylinder with height equal to h and r as the radius?A. LA = 2r2
B. LA = 2r
C. LA = 2rh
D. LA = 2r2 + 2rh

Answers

Answer:

Lateral surface area of right cylinder = 2 * π * radius * height.

Step-by-step explanation:

Given :   A right cylinder with height equal to h and r as the radius.

To find : Which of the following formulas would find the lateral area.

Solution : We have given that height of cylinder = h

                                                  radius of cylinder = r.

Lateral surface area of right cylinder = 2 * π * radius * height .

Formula for LA = 2πrh.

Therefore, Lateral surface area of right cylinder = 2 * π * radius * height.

Answer:

Answer: LA=2pie rh

Step-by-step explanation:

A missile was fired from a submarine from 290 feet below sea level. If the missile reached a height of 17800 feet before exploding, what was the change in the altitude of the missile?

Answers

The answer is 17510 above sea level

Final answer:

The missile's change in altitude from the starting point 290 feet below sea level to the final position of height 17800 feet is calculated by subtracting the initial position from the final position, resulting in a change of 18090 feet.

Explanation:

The subject of this question falls under the domain of Mathematics, specifically involving numerical operations. It pertains to the calculation of change in altitude. Here's your step-by-step explanation:

1. The missile's starting point is 290 feet below sea level. We represent below sea level as a negative number, so the starting altitude of the missile is -290 feet.

2. The missile then ascended to a height of 17800 feet, which is above sea level and hence positive.

3. To find the change, we subtract the initial position from the final position: 17800 - (-290) = 17800 + 290 = 18090 feet.

So, the change in altitude of the missile is 18090 feet.

Learn more about Change in Altitude here:

brainly.com/question/32921734

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Write the function in vertex form
y=-x^2-2x+7

Answers

i hope this helps you

What does ø mean ? Can someone explain it based off the problem in the photo ?

Answers

Answer:

It means something mathematical

Step-by-step explanation:

The slashed zero glyph is often used to distinguish the digit "zero" ("0") from the Latin script letter "O" anywhere that the distinction needs emphasis, particularly in encoding systems, scientific and engineering applications, computer programming (such as software development), and telecommunications.

Mrs. Blake needs to hire a babysitter. Kelsey charges $6 per hour plus a $5 fee. Lauren charges $4 per hour, plus a $10 fee. Mrs. Blake set up this equation to figure out for what amount of time both babysitters charge the same.6h + 5 = 4h + 10
What is the correct sequence of steps to solve Mrs. Blake’s equation?

A. Subtract 6h from both sides. Subtract 5 from both sides. Divide each side by –2.
B. Subtract 4h from both sides. Subtract 5 from both sides. Divide each side by 2.
C. Subtract 4h from both sides. Add 5 to both sides. Divide each side by 2.
D. Subtract 4h from both sides. Subtract 5 from both sides. Divide each side by 6.

Answers

Answer:

Option B: Subtract 4h from both sides. Subtract 5 from both sides.Divide each side by 2.

Step-by-step explanation:

So why option B?

When solving equations one of the best method is to bring like terms together to a side (LHS or RHS) of the equation.

What are liked terms? This are numbers or integers with similar structure. From the question the liked terms are 5 and 10, and 6h and 4h.

Going by the workflow described in option B we will see that the end game here was to bring liked terms together.

So lets carry out the workflow step by step:

  • Subtract 4h from both sides: 6h + 5 -4h = 4h + 10 -4h => 2h + 5 = 10
  • Subtract 5 from both sides: 2h + 5 -5 = 10 -5 => 2h = 5 (Victory!!! we have succeeded in briinging like terms to a side)
  • Divide each side by 2: 2h/2 = 5/2 => h = 2.5

So for the Babysitters to charge the same amount they have to have worked for 2.5 hours (that is 2 hours 30 minutes)
B) This way you'll get an answer of h=2.5
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