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eimsori [14]
3 years ago
10

What is the relationship between 30 hours and 15 hours

Mathematics
1 answer:
WITCHER [35]3 years ago
7 0

Answer:

it is 2

Step-by-step explanation:

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BRAINLIEST IF RIGHT!!! HURRY!​
netineya [11]

Answer:

b

Step-by-step explanation: since i helped can i have brainlist please :D

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3 years ago
Help me out please!!<br> For what value of X must ABCD be a parallelogram?
Darina [25.2K]

Answer:

x = 3

Step-by-step explanation:

A parallelogram must have two pairs of parallel sides.

For this to be true, the alternate exterior angles of the diagonal must be congruent.

Hence the equation,

<u>10x + 4 = 13x - 5</u>

Simplify.

<u>9 = 3x</u>

<u>x = 3</u>

3 0
2 years ago
Caitlyn needs to solve the equation: 2(3x+1)=3(2-x).
Mila [183]
Step 1:<span>Simplify both sides of the equation.</span><span><span>2<span>(<span><span>3x</span>+1</span>)</span></span>=<span>3<span>(<span>2−x</span>)</span></span></span><span><span><span><span>(2)</span><span>(<span>3x</span>)</span></span>+<span><span>(2)</span><span>(1)</span></span></span>=<span><span><span>(3)</span><span>(2)</span></span>+<span><span>(3)</span><span>(<span>−x</span>)</span></span></span></span>(Distribute)<span><span><span>6x</span>+2</span>=<span><span>6+</span>−<span>3x</span></span></span><span><span><span>6x</span>+2</span>=<span><span>−<span>3x</span></span>+6</span></span>
Step 2: Add 3x to both sides.<span><span><span><span>6x</span>+2</span>+<span>3x</span></span>=<span><span><span>−<span>3x</span></span>+6</span>+<span>3x</span></span></span><span><span><span>9x</span>+2</span>=6</span>
Step 3:Subtract 2 from both sides.<span><span><span><span>9x</span>+2</span>−2</span>=<span>6−2</span></span><span><span>9x</span>=4</span>
Step 4:Divide both sides by 9.<span><span><span>9x</span>9</span>=49

hope it helps :)
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7 0
4 years ago
Prove that: 16sin20.sin40.sin60.sin80=3​
olga nikolaevna [1]

to prove that 6720. Sin 40. Sin 60. 80 equals 3 you'd have to divide 16 by 20 multiply subtract both sides by 3 which is 24x + 6x + 8x + -14 equals 40 40 + 20 equals 16 - -40 equals 80 which equals to 3

6 0
4 years ago
Katie works part-time at a Fallbrook riding stable she makes $5 an hour for exercising horses and $10 an hour for cleaning stall
Nookie1986 [14]

In order to at least earn $90, Katie can work exercising horses for 6 hours and cleaning stalls for 6 hours.

Step-by-step explanation:

Let hours of exercising horses be x --> $5 per hour = 5x

Let hours of cleaning stalls be y --> $10 per hour = 10y

Total earning = \geq 90

Total hours = 12

<u>Equation 1:</u>

5x + 10y = \geq 90

<u>Equation 2:</u>

x + y \leq 12

<em>1. Multiply equation 2 by -5</em>

x + y \leq 12 (*-5)

5x + 10y = \geq 90

-5x - 5y \leq -60

5x + 10y = \geq 90

<em>2. Solve</em>

-5x + 5x -5y + 10y = -60 + 90

5y = 30

y = 6

x + y = 12

x + 6 = 12

x = 6

Therefore, in order to at least earn $90, Katie can work exercising horses for 6 hours and cleaning stalls for 6 hours.

Keywords: Simultaneous, hours, equations

Learn more about at

  • brainly.com/question/1284310
  • brainly.com/question/13168205

#LearnwithBrainly

3 0
4 years ago
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