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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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Zarrin [17]

Using proportions, the coordinates of the point 3/4 of the way from P to Q are: (0,4).

<h3>What is a proportion?</h3>

A proportion is a fraction of a total amount, and the measures are related using a rule of three. Due to this, relations between variables, either direct or inverse proportional, can be built to find the desired measures in the problem.

We want to find the coordinates of point M(x,y) 3/4 of the way from P to Q, hence the rule is given by:

M - P = 3/4(Q - P)

For the x-coordinate, we have that:

x + 6 = 3/4(2 + 6)

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For the y-coordinate, we have that:

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y + 5 = 9.

y = 4.

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More can be learned about proportions at brainly.com/question/24372153

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1 year ago
The minute hand on a watch is 2.00 cm in length. what is the displacement vector of the tip of the minute hand
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Dafna11 [192]

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I need help with this question
zhuklara [117]

Answer: 5x - 1 = -6

Step-by-Step Explanation:

We have this diagram here showing numbers and symbols. Just a remainder, "X" is a variable which can be found through and equation of Algebra. Alright, so we have 5 boxes with the symbol "X". Alright, that's a start, so we have <u>5x</u> as a start of the equation. We have <u>-1</u> on the same side as well.

Alright, so on the other side- we have Six symbols of "-1".

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