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Mashcka [7]
3 years ago
11

It takes Serina 0.25 hours to drive to school. Her route is 16 km long. What is Serina’s average speed on her drive to school?

Mathematics
1 answer:
erma4kov [3.2K]3 years ago
4 0

Answer:

64 km/hr

Step-by-step explanation:

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Find all the missing angles: a, b, c, d.
morpeh [17]

Answer:

a= 180-60-55=65

we know that the angle of a flat(?) ground would be 180, so we can take away the 60 and 55 to find a.

b=180-90-65=25

the sum of interior angle of a triangle would be 180, now we know what a is, also the right angle is 90, now we can take away the 90 and 65 to find b.  

c=25

c is 25, because two angles on both sides of a X is the same

6 0
3 years ago
A rectangle has length X +5 and width X +4 if the perimeter of the rectangle is 42 m what are the length and width of the rectan
Maru [420]
The perimeter is 2(length) + 2(width), so 2(x+5) + 2(x+4) = 42 m. In solving for x, you find 6. Plug 6 back into your length and width where x originally was, and you find your length to be 11m, and your width to be 10m. Hope this helps!
6 0
3 years ago
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What is the approximate value of 31 square root? MAFS.8.NS.1.2<br> 5<br> 6<br> 15<br> 16
PtichkaEL [24]

Answer:

6

Step-by-step explanation:

\sqrt{31} =5.56

Since it's 5.56, you'll want to round UP because 5 is in the tenths and is closer to 6

4 0
2 years ago
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Please help
nikitadnepr [17]

Answer:

The value of x is \frac{-2}{5}.

Step-by-step explanation:

Given expression is:

\frac{2}{3}(x-2)=4x

We have to solve this for x.

First we will multiply both sides of the equation by 3

3*\frac{2}{3}(x-2)=4x*3

2(x-2) = 12x

2x-4=12x

Now we will be subtracting 2x from both sides of the equation

2x-2x-4=12x-2x

-4=10x

10x=-4

Dividing both sides by 10

\frac{10x}{10}=\frac{-4}{10}\\\\x=\frac{-2}{5}

Hence,

The value of x is \frac{-2}{5}.

8 0
3 years ago
The vertices of the image of GHJK after a translation are given. Choose the vector that describes the translation.
Lady_Fox [76]

Answer:

Option B

Step-by-step explanation:

Let's take a vertex G of quadrilateral GHJK to understand the rule for the translation,

From the graph attached,

Coordinates of G → (-5, 5)

Coordinates of the image point G' after the translation → G'(-5, 5)

Let the point G is translated 'a' units to the right and 'b' units down,

Rule for this translation,

G(x, y) → G'(x + a, y - a)

By this rule,

G(-5, 5) → G'(-5 + a, 5 - a)

-5 + a = -5 ⇒ a = 0

5 - a = 5 ⇒ a = 0

Therefore, vector that defines the translation will be,

<0, 0>

Option B is the the correct option.

8 0
3 years ago
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