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g100num [7]
4 years ago
12

3/5 + blank over 3 equals 14/15. whats the missing number

Mathematics
1 answer:
vlabodo [156]4 years ago
7 0

Answer:

x = 1/3

Step-by-step explanation:

3/5 + x = 14/15

we need to get a common denominator 15

3/5 * 3/3 = 9/15

9/15 + x = 14/15

subtract 9/15 from each side

9/15 - 9/15 + x = 14/15 - 9/15

x = 5/15

this simplifies  divide the top and bottom by 5

x = 1/3

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Maury and Tyra are making phone calls to state representatives' offices to lobby for an issue. Muary can call all 120 state repr
oee [108]
Maury = 120/10 (12 calls/hour)
Tyra = 120/8 (15 calls/hour)

Together they are 27 calls per hour.
120 / 27 = 4.4444444444

So it'd take them 4.44444444 (recurring) hours to make 120 calls.
6 0
3 years ago
Given the system of equations, what is the solution? x 3y = 5 x - 3y = -1 {(-4, -3)} {(2, 1)} {(-2, 3)}
PSYCHO15rus [73]

The solution of the equation is (2, 1).

x=2 and y=1

<h3>What do you meant by equation?</h3>

A mathematical assertion that two expressions are equal is known as equating. It can be expressed as either an identity, in which case the variables can take on any value, or a conditional equation, in which case the variables can only have specific values (roots).

<h3>According to the given information:</h3>

We have two options for finding the answer. The first is to solve the equations via term elimination:

x + 3y = 5  ..............1

x - 3y = -1  ...............2

2x = 4 ..............3

With the equation, we can determine x. (3)

x = 4/2

x = 2

To determine y, we may now swap out x=2 in equation (1).

x + 3y = 5

2 + 3y = 5

3y = 3

y = 1

We've discovered x and y now.

x=2

y=1

The second method involves removing x from equation 1.

x + 3y = 5

x = 5 - 3y

In the equation right now, we may substitute x = 5 - 3y.........  (2)

x - 3y = -1

(5 - 3y) - 3y = -1

5 - 6y = -1

6y = -6

y = 1

Currently, we can change y=1 in equations (1), (2), or (4) to find x.

We'll apply the equation (1)

x + 3y = 5

x + 3(1) = 5

x + 3 = 5

x = 2

The two variants x = 2 and y = 1 have allowed us to confirm this.

To know more liner equation visit:

brainly.com/question/2995422

#SPJ4

7 0
2 years ago
Simplify 18 - 2[X + (x - 5)].<br> 8- 4x<br> 28 - 4x<br> 28 - 2x
malfutka [58]

Answer:

28 - 4x

Step-by-step explanation:

18 -2 [x + (x - 5)]  \\  = 18 - 2 [x + x - 5]  \\  = 18 - 2 [2x - 5] \\  = 18 -4x  + 10 \\  = 28 - 4x \\

5 0
4 years ago
The tail of the spider monkey is 64% of the length shown. what is the length of its tail
Reika [66]
In this case, you just need to multiply 64% with the length shown.

For example, if the length shown is 100 cm, the length of its tail would be :

100 cm x 64 %

= 64 cm
3 0
3 years ago
You are conducting a study of three types of feed supplements for cattle to test their effectiveness in producing weight gain am
maw [93]

K is the number of groups in one way ANOVA. Since here 4 groups involved. So k here is four.

<u>Explanation:</u>

In statistics, one-way analysis of variance is a technique that can be used to compare means of two or more samples. This technique can be used only for numerical response data, the "Y", usually one variable, and numerical or categorical input data, the "X", always one variable, hence "one-way".

The one-way analysis of variance (ANOVA) is used to determine whether there are any statistically significant differences between the means of two or more independent (unrelated) groups (although you tend to only see it used when there are a minimum of three, rather than two groups).

4 0
3 years ago
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