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nata0808 [166]
3 years ago
14

Zach and Ginny are building model cars. Ginny's car is 2 more than 3 times the length of Zach's car. The sum of the lengths of b

oth cars is 30 inches
Write an equation to determine the lengths of Zach's and Ginny's cars
3x + 2 = 30
x2 + 3x = 30
2x + 3 = 30
x + 2x + 3 = 30
Mathematics
1 answer:
Neporo4naja [7]3 years ago
8 0

Answer:

x+(3x+2)=30

Step-by-step explanation:

Let

x ----> the length of Zach's car

y ----> the length of Ginny's car

we know that

The sum of the lengths of both cars is 30 inches

so

x+y=30 ----> equation A

Ginny's car is 2 more than 3 times the length of Zach's car

so

y=3x+2 ----> equation B

substitute equation B in equation A

x+(3x+2)=30

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a milha eh uma unidade usada para medir distancias. ela equivale a cerca de 1,6 quilometros. se cada carro percorrer 240 quilome
Pani-rosa [81]

Classica aplicação de regra de 3:

é dito que: 1 milha = 1,6km

Logo, eis a regra de 3:

  milha           km

     1   --------    1,6

     X  --------   240

1,6X = 240.1

X = 240/1,6

<h3>X = 150milhas</h3><h3 />

Logo 240km equivalem a 150milhas

6 0
2 years ago
I have a total of 29 coins-they are quarters and dimes. Together they amount to $5.60. How many quarters do I have? How many dim
Anna007 [38]
450/25= 18

where 450 is $4.50 and 25 is one quarter. there will be 18 quarters. 

560-450=110

110/10=11

where 110 is $1.10 and 10 is one dime. there will be 11 dimes. 

11+18= 29

where 11 is total number of dimes and 18 is total number of quarters. and 29 is total number of coins
6 0
3 years ago
Read 2 more answers
-5 &gt;3 true or false plssssss answer
Ivan

Answer:

false

Step-by-step explanation:

-5 is smaller than 3 not bigger.

8 0
3 years ago
What is the equation of the line that has a y intercept of (0,-3) and passes the point (-9,-9)
zavuch27 [327]

Answer:

y = 2/3x - 3

Step-by-step explanation:

First calculate the slope: y2 - y1 divided by x2 - x1

Slope: -6/-9 = 2/3

The y-intercept is -3

The equation of a line: y = mx + b

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4 0
2 years ago
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solniwko [45]

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