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My name is Ann [436]
3 years ago
7

Hellpppp ASAP. Plzzzz

Mathematics
2 answers:
padilas [110]3 years ago
8 0

Answer:

6 is from the beginning. Multiply first, not add

Step-by-step explanation:

Shalnov [3]3 years ago
8 0

Answer:

6)

5+3(y-4)=5(y+2)-y\\\\5+3y-12=5y+10-y\\\\-7+3y=4y+10\\\\y=-17

The error was made by combining the 5+3(y-4) without first distributing the 3 to both the y and -4.

7)

a)

A(t)=0.30t+45\\B(t)=0.25t+60

b) Now we can set each equal to 150 and solve for t

150=0.30t+45\\\\0.30t=105\\\\t=\frac{105}{0.30} \\\\t=350

Rob can send 350 texts per month with plan A

150=0.25t+60\\\\0.25t=90\\\\t=\frac{90}{0.25} \\\\t=360

Rob can send 360 texts per month with plan B

c)

A(100)=0.30(100)+45\\\\A(100)=30+45\\\\A(100)=75

B(100)=0.25(100)+60\\\\B(100)=25+60\\\\B(100)=85

If Rob were to send 100 text messages a month, Plan A would be cheaper

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1. 144km

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Given quadrilateral ABCD is congruent to Quadrilateral A'B'C'D', What is the measure of B'C'?
Vadim26 [7]
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2 years ago
John is 3 years older than Susan and khalid is 5 years younger than her . The sum of their ages is 40 .
lapo4ka [179]

Answer:

John is 17,

Susan is 14,

and Khalid is 9.

Step-by-step explanation:

a = John's age

b = Susan's age

c = Khalid's age

Let's set our rules from the given information.

a = b + 3

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a + b + c = 40

Now, we can solve for b through substitution.

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3b - 2 = 40

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b = 14

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8 0
3 years ago
Is the following statement a good definition? Why? An integer is divisible by 100 if and only if its last two digits are zeros.
nikitadnepr [17]

The given statement is An integer is divisible by 100 if and only if its last two digits are zeros.

The two conditional statements that can be made are:

1) If an integer is divisible by 100 its last two digits are zeros.

This is a true statement. If a number is divisible by 100, it means 100 must be a factor of that number. When 100 will be multiplied by the remaining factors, the number will have the last two digits zeros.

<h3>What happen when last two digit of the number are 0?</h3>

2) If the last two digits of an integer are zeros, it is divisible by 100.

This is also true. If the last two digits are zeros, this means 100 is a factor of the integer. So the number will be divisible by 100.

Therefore, the two conditional statements that are formed are both true.

So, option A is the correct answer.

Yes, it is. When the definition is separated into two conditional statements, both of the statements are true.

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4 0
1 year ago
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What is the slope of the line shown below?
Harman [31]

Answer:

2

Step-by-step explanation:

Slope is often called rise/run.

This is the amount the line goes upwards, rise, compared to the amount it goes sideways, run.  

Compare the two shown points.  From the left point the the right, the rise is 6, while the run is 3, creating the rise/run of 6/3.  This is simplified to 2.

7 0
2 years ago
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