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IrinaK [193]
3 years ago
8

If A= 5x – 2 and B = 3x + 4 , what is the value of x?

Mathematics
2 answers:
V125BC [204]3 years ago
8 0
X = 3

5(3) - 2 = 13

3(3) + 4 = 13
Aliun [14]3 years ago
4 0
Answer: x = 3
Explanation: none
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The equation y 10x describes the amount of money Sandra earns, where x is the number of hours she
tester [92]

Answer:

a) $10 per hour

b) Sandra

Step-by-step explanation:

<u>Complete Question:</u>

<em>The equation y 10x describes the amount of money Sandra earns, where x is the number of hours she  works and y is the amount of money she earns </em>

<em>The table shows the amount of money Susan cams for different numbers of hours worked</em>

<em>Susan's Earnings </em>

<em>Time (h)           Money Earned</em>

<em>5                              40</em>

<em>8                              64                </em>

<em>10                             80</em>

<em>(a) How much money does Sandra eam per hour? Show your work </em>

<em>(b) Who earns more per hour? Justify your answer</em>

<em />

<em />

<u>Answer:</u>

a)

y = 10x is sandra's equation. To find her hourly rate, we need to find how much she earns in "1" hour. Since x is hours, we plug in x = 1 and find y (which is her pay).

y = 10x

y = 10(1)

y = 10

$10 is Sandra's hourly rate.

b)

To find who earns more per hour, we need to find the hourly rate of Susan as well from the table. Then compare.

5 hours = $40 so per hour is 40/5 = 8

8 hours is 64, so per hour 64/8 = 8

10 hours is 80, so 80/10 = 8

The table is justified at $8 per hour.

We know Sandra earns $10/hr and Susan earns $8 per hour. So Sandra earns more per hour.

4 0
3 years ago
A proton represents a positive charge. Write an integer to represent 5 protons. An electron represents a negative charge. Write
Ugo [173]

Answer

Given,

proton represent positive charge                                    

the integer that will give the  representation of 5 protons will be equal to + 5

an electron represents negative charge                                            

the integer that will give the representation of 3 electrons will be equal to -3

8 0
3 years ago
Find the Volume. Use pi=3.14. Round to the nearest hundredth.
aleksandr82 [10.1K]
<h2>Volume = 4.19 inches³</h2>

<u>Step-by-step explanation:</u>

radius = 1 inches

π = 3.14

volume of SPHERE = 4/3 × π × radius³

= 4/3 × 3.14 × 1³

= 4.19 inches³

4 0
3 years ago
What is the equivalent decimal? Drag the answer into the box to match the fraction. 6/11
Naya [18.7K]

Answer:

The answer is D

Step-by-step explanation:

5 0
3 years ago
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Yi and Sue play a game. They start with the number 42000. Yi divides by a prime number, then passes the quotient to Sue. Then Su
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Whoever goes first will lose, that's the solution
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