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podryga [215]
3 years ago
8

Elsa went for a drive in her new car. She drove 345.6 miles at a speed of 54 miles per hour. For how many hours did she drive

Mathematics
1 answer:
Kitty [74]3 years ago
6 0

Answer:

6.4

Step-by-step explanation:

You could use a calculator

Or....

Do 345.6/54 and get 6.4

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Determine whether each scale factor produces an expansion or a contraction under a dilation of the original image
blondinia [14]

Answer:

see the explanation

Step-by-step explanation:

we know that

If the absolute value of the scale factor is less than 1, then the dilation produces a contraction of the original image

If the absolute value of the scale factor is greater than 1, then the dilation produces an expansion of the original image

so

<u><em>Verify each value</em></u>

1) -4

\left|-4\right|=4

4> 1

therefore

The dilation produces an expansion of the original image

2) 0.25

\left|0.25\right|=0.25

0.25 < 1

therefore

The dilation produces a contraction of the original image

3) -2/3

\left|-2/3\right|=2/3

2/3 < 1

therefore

The dilation produces a contraction of the original image

4) 2.3

\left|2.3\right|=2.3

2.3 > 1

therefore

The dilation produces an expansion of the original image

4 0
3 years ago
How many 7-digit even numbers can be<br> formed using all of the digits 0, 1, 1, 2,<br> 3, 4, 5?
DochEvi [55]

Answer: The answer is 1320 hope this is right.

Step-by-step explanation:

4 0
3 years ago
. When 2 times a number is increased by 4,
Alinara [238K]

Answer: The number is 7

Step-by-step explanation:

Let x be the [number]

<u />

<u>Rephrase the expression</u>

2 times a number is increased by 4, it is the same as 25 decreased by the number

2x+4=25-x

<u>Calculate</u>

Given

2x+4=25-x

Add x on both sides

2x+4+x=25-x+x

3x+4=25

Subtract 4 on both sides

3x+4-4=25-4

3x=21

Divide 3 on both sides

3x/3=21/3

x=7

Hope this helps!! :)

Please let me know if you have any questions

4 0
3 years ago
Expand and simplify (x+3)(x+5) plsss
Law Incorporation [45]

Answer:

x^2+8x+15

Step-by-step explanation:

Use the distributive property of equality to multiply and get:

x^2+5x+3x+15

Simplify by combining like terms to get your end result:

x^2+8x+15

8 0
3 years ago
1. find the product and write it in simplest form: 1 1/3 x 3/8 =
I am Lyosha [343]

Answer:

The answer to number 1 is A.

Step-by-step explanation:

To find this answer, I made 1 1/3 into one big fraction. I multiplied the denominator by the whole number (3x1) and then added that product to the numerator. (3+1). The new fraction is now 4/3 (you keep the denominator the same). The next step is to multiply 4/3 by 3/8. When multiplying fractions, you multiply straight across (the numerator by the numerator, and the denominator by the denominator). Your answer is now 12/24. The final step is to simplify the answer. Since 12 is half of 24, the answer is 1/2.

3 0
3 years ago
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