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3 years ago

7

Is 2/5 a rational number?

2 answers:

lys-0071 [83]3 years ago

6 0

Answer:

the rational numbers is 2

lidiya [134]3 years ago

4 0

Answer:

Yes

Step-by-step explanation:

A rational number is a type of real numbers, which is in form of p/q where q is not equal to 0. It's a number that can be written as a ratio, which includes fractions.

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If a1 = 4 and an -4an-1 then find the value of an.

IRISSAK [1]

1 = 4
-4an - 1

-4an -(4)
an 1

7 0

2 years ago

There are two drama classesoffered at a middle school. The 8th grade class has 13 fewer students than the 7th grade class. If th

Eddi Din [679]

Answer:

Class 8 has 27 and class 7 has 40

Step-by-step explanation:

8th (r) class has 13 fewer than 7th (x).
x -13 = r

Total for both classes = 67

r + x - 13 = 67
r + x = 80

80 divided by two = 40 (per class)

40 - 13 = 27

4 0

1 year ago

Kimora’s cell phone company charges her $35 a month for phone service plus $.05 for each text message sent. How many text messag

professor190 [17]

Given that Kimora’s cell phone company charges her $35 a month for phone service plus $.05 for each text message sent.

Kimora's cell phone bill for one month is $52.

We need to determine the number of text messages Kimora sent for one month.

Also, we need to write and equation and solve it.

<u>The equation:</u>

Let x denote the number of text messages Kimora sent for one month.

Thus, the equation is given by

$35+0.05x=52$

Therefore, the equation for the number of text messages Kimora sent for one month is $35+0.05x=52$

<u>Solving the equation:</u>

We need to solve the equation $35+0.05x=52$

Subtracting both sides of the equation by 35, we get;

$0.05x=17$

Dividing both sides of the equation by 0.05, we get;

$x=340$

Therefore, the number of messages sent is 340.

3 0

3 years ago

10th term of an= 20-2n

Dmitry [639]

Answer:

We have that $a_{n} = 20-2n$

Step-by-step explanation:

We have just to replace n=10 on the general equation

$a_{10} = 20-2×10$

Therefore:

$a_{10} = 0$

8 0

3 years ago

Factors of 9.52? Please help. Google won’t tell

Elina [12.6K]

Answer:

9.52 x 1

4.26 x 2

4 x 2.38

Hope that helps

4 0

3 years ago