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Furkat [3]
2 years ago
14

The difference between three times a number and seven is twenty. What is the number?

Mathematics
1 answer:
Elena-2011 [213]2 years ago
4 0

The answer would be B

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Please someone help <br> I need this
Sunny_sXe [5.5K]

Answer:

the triangle

Step-by-step explanation:

The perimeter is the sum of the all sides of the shape.

Triangle:

3√147+2√108+2√48+3√75+ 6√12

147=49•3, 108=36•3, 48=16•3, 75=25•3, 12=4•3 that means

√147=7√3, √108=6√3, √48=4√3, √75=5√3, √12=2√3

perimeter=3•7√3+2•6√3+2•4 √3+3•5√3+6•2√3=68√3

Square:

4•1/3•√63=4/3•√9•√7=4√7

Rectangle:

2•1/4√100+2(2√48+4√75)=

5+2(8√3+20√3)=5+56√3

Now, if you use a calculator, you will find that the greatest perimeter is for the triangle shape.

8 0
3 years ago
Beth is purchasing chocolate and vanilla ice cream cups for a birthday party. She needs a total of 24 ice cream cups and twice a
frez [133]
constraint 1
 let
 x = number of cups of chocolate
 y = number of cups of vanilla
 The equation that represents the total number of ice cream is:
 x + y = 24
 constraint 2
 the ratio of the number of chocolate cups to vanilla cups is
 y = (1/2) x
 Using equations 1 and 2, you can find the number of cups of each favor required.
 answer:
 x + y = 24
 y = (1/2) x
6 0
3 years ago
You’re rectangular 12 feet long and 8 feet wide. Your friend’s rectangular vegetable garden 50 feet long and 10 feet wide are th
igor_vitrenko [27]

Answer:

No

Step-by-step explanation:

For shapes to be similar, their ratios of length-to-length and width-to-width must be the same. When you divide the larger length by the smaller length and the larger width by the smaller width, do you get the same number? No, so these rectangles are not similar.

5 0
3 years ago
Read 2 more answers
What angle relationship best describes angles AFC and DFB?<br> WILL GIVE BRAINLIEST
Ivan

Answer:

vertical angles

Step-by-step explanation:

they are vertical angles because they are vertically opposite each other and they are equal

4 0
3 years ago
Read 2 more answers
Hunter did not want to spend more than 150$ for a flight from Reno to Los Angeles. Write the inequality that models this situati
Jobisdone [24]

Answer:

(a)\ x < 150

(b)\ x = 149; x = 148

Step-by-step explanation:

Given

Amount = 150 --- not more than

x \to spending

Solving (a): Represent as an inequality

Not more than means <

So, the inequality is:

Spending < Amount

x < 150

Solving (b): The first two possible solutions

These are the numbers closest to 150 i.e. 149 and 148

Hence, x = 149; x = 148

7 0
3 years ago
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