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2 years ago

11

A model car is 6.9 centimeters long and 3.5 centimeters wide. find the real length of the car. Round your answer to the nearest

tenth

1 answer:

Rasek [7]2 years ago

4 0

Answer: I'm pretty sure its 10.4 but I may be wrong

Step-by-step explanation: hopefully I helped you

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Solve the system of equations.<br> -10x+3y=5 <br> x=y-4

blsea [12.9K]

Answer:

x=y-4 -10x+3y=5

y=x+4 y=10/3x+5/3

x+4 =10/3x+5/3

x=1

y=1+4 y=10/3(1)+5/3

y=5 y=5

so

x=1

y=5

(1,5)

5 0

2 years ago

A point is reflected across the x-axis. The new point is (7.5,6). What is the distance between these two points?

blagie [28]

Because it was reflected across the x axis, the distance between the two points is twice the distance of the old point from the x axis, and the distance from the old point from the x axis equals the distance from the new point to the x axis. The distance from the x axis is the absolute value of the x=y value. 7.5 is the y value, meaning the point is 7.5 units away from y=0, the x axis. The new point is twice this from the old point. 7.5 x 2 = 15. The new point is 15 units away from the old point.

4 0

2 years ago

△ABC ≅ △DEF, EF = x 2 - 7, and BC = 4x - 2.

Artist 52 [7]

Answer:

Therefore the value of x is 5.

Step-by-step explanation:

Given:

△ABC ≅ △DEF,

EF = x 2 - 7, and

BC = 4x - 2.

To Find:

the values of x. = ?

Solution:

△ABC ≅ △DEF ........Given

If two Triangles are congruent then the Corresponding Parts of Congruent Triangles are Congruent.

∴ BC ≅ EF ...................CPCTC

Substituting the values we get

$4x-2=x^{2}-7\\x^{2}-4x-5=0$

Now By Factorizing we get

$x^{2}-5x+x-5=0\\x(x-5)+1(x-5)=0\\(x+1)(x-5)=0\\x+1=0\ or\ x-5=0\\x=-1\ or\ x=5\\x\ cannot\ be\ negative\\\therefore x=5$

Therefore the value of x is 5.

8 0

3 years ago

Which question is being asked in this story problem?

olya-2409 [2.1K]

The answer is C.

The question asks for the total amount of tires on all of the toy tractors.

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2 years ago

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Jack wrote this expression to describe how much he will pay for flowers.

kap26 [50]

C

5 x f

5 = price for flowers
f = variable = how many flowers.

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2 years ago

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