Help please! look at the screenshot below.

Answer:

Step-by-step explanation:

t/4+t/3=1

(3t+4t)/12=1

7t/12=1

7t=12

t=12/7

x=(12/7)hours

Answer:

1/4 + 1/3 = 1/x

Step-by-step explanation:

"Bethany can mow her family’s lawn in 4 hours."

In 1 hour, she does 1/4 of the job.

"Her brother Colin can mow the lawn in 3 hours."

In 1 hour, he does 1/3 of the job.

When they work together, in 1 hour they do 1/4 + 1/3 of the job.

When they work together, they can mow the lawn in x hours.

In 1 hour, they do 1/x of the job. This means that 1/4 + 1/3 must equal 1/x.

1/4 + 1/3 = 1/x

Answer:

24

Step-by-step explanation:

4 x 3 x 2 x 1 = 24

or P(4,4) = 4! = 24

Answer:

Exact Form:

−33/20

Decimal Form:

−1.65

Mixed Number Form:

−1 13/20

Answer:

One Solution

Step-by-step explanation:

Answer:

no

Step-by-step explanation:

Answer:

no

Step-by-step explanation:

Answer:

1.5, or 1 1/2

Step-by-step explanation:

Answer:

g= -9

Step-by-step explanation:

Answer:

f(x) = 6x - 3

Step-by-step explanation:

Step-by-step explanation:

Given

4(x + 7 ) = 38

4x + 28 = 38

4x = 38 - 28

4x = 10

x = 10 / 4

x = 5 / 2

Hope it will help :)❤

Answer:

like the other person said! Where are the number lines?

Step-by-step explanation:

Answer:

The greatest amount of pieces he would be able to use would be 9 because 8 divided by 5/6= 9 and 3/5.the 3/5 piece is too short.

Step-by-step explanation:

Answer: THE ANSWER IS

Determine if the relation is a function.

The relation is a function.

Find the domain and range.

Domain:

{−3, −1,  5,  8}

Range:

{−6}

Graph.

{(−3,−6),  (−1,  −6),  (5,  −6),  (8,  −6)}

Determine if the relation is linear.

The relation is linear

Find the inverse.

( − 6 ,  − 3 ) ,   ( − 6 ,  − 1 ) ,   ( − 6 ,  5 ) ,   ( − 6 ,  8 )

Step-by-step explanation: IT'S NOT A OR D.. ig

1:    Recall that a function  from a set  to a set  is a relation that assigns to each element  in the set  exactly one element in the set . The set  is the domain (or set of inputs) of the function and the set  contains the range (or set of outputs).

The general characteristics of functions are:

A. Each element in A must be matched with an element in B.

B. Some elements in B may not be matched with any element in A.

C. Two or more elements in A may be matched with the same element in B.

D. An element in A (the domain) can not be matched with two different elements in B.

________________________________________________

Solving this problem we have:

1. The mapping diagram is represented in Figure 1. As you can see this is a function. Each element in A is matched with an element in B. All the elements in A are matched with the same element in B. So, this fulfills with the definition of function.

2. The mapping diagram is represented in Figure 2. This is not a function. Notice that an element in A (the domain) is matched with two different elements in B, that is, -8 is matched with -6 and 1.

2:    #1) This is a function.

#2) This is not a function.

(The mapping diagrams are not present to match to these.)

Explanation:

A function is a relation in which each element of the domain is matched to no more than one element of the range; in other words, no x gets mapped to more than 1 y.

In #1, no x is mapped to more than 1 y, so it is a function. However, in #2, -8 is mapped to both -6 and to 1; this x is used more than once, so this is not a function.

3:    what is the primary responsibility of the legislative branch

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it represents new mexico in foreign affairs

4:    Answer:

Option D is correct.

The relation {(-8, -6) (-5, 2) (-8, 1) (7, 3)} is not a function.

Step-by-step explanation:

Given the relation:  {(-8, -6) (-5, 2) (-8, 1) (7, 3)}

Domain is the set of all possible inputs of a relation i.e { -8, -5 , -8 , 7}

Range is the set of output values of a function i.e, {-6, 2 , 1 , 3}

The mapping as shown below in the figure:

A function is a relation in which every element of the domain is matched to not more than one element of the range.

In other words, we can say that ,no value of x gets mapped to more than 1 value of y.

Since, from the mapping you can see that the domain value -8  paired with -6 and 1;  as x is used more than once.

Therefore, this relation is not a function

Answer:

12.84 degrees

Step-by-step explanation:

sin(x)=2/9

Answer:

x = 54

Step-by-step explanation:

In this line, I am going to assume lines l and m are parallel.

Each flat surface is half of a circle, therefore it has 180 degrees. We are given one side and told to find the other.

180 - 116 = 64.

The other angle's total value must be 64.

Now, to solve for x, subtract 10 from 64 [inverse operations].

64-10=54

The value of x in this equation is 54 degrees.

Given:

The given expression is

[tex]\dfrac{e\times e\times e\times f}{e\times e\times f\times f}[/tex]

To find:

The simplified form of given expression.

Solution:

We have,

[tex]\dfrac{e\times e\times e\times f}{e\times e\times f\times f}[/tex]

The common factors in numerator and denominator are e, e, f.

Cancel out the common factors.

[tex]=\dfrac{e}{f}[/tex]

Therefore, the required expression is [tex]\dfrac{e}{f}[/tex].

Answer:

I believe the answer is $1,742.12

Sorry if im wrong!

Answer:

exact: 3 √ 5

decimal: 6.70820393

Step-by-step explanation:

Hope this helps

Answer:

216

Step-by-step explanation:

8(6) + (10+6+8)(7)

48 + 24x7

48 + 168

216

Answer:

A

Step-by-step explanation:

intercept the x- intercept

Answer:

Step-by-step explain

x-intercept: 2.8 hours

y-intercept: 0.7 . . . . fraction of power remaining

Step-by-step explanation:

The equation is in slope-intercept form, so the y-intercept can be read directly: 0.7.

To find the x-intercept, set y=0 and solve for x:

0 = -0.25x +0.7

0.25x = 0.7 . . . . . add .25x

x = 2.8 . . . . . . . . . multiply by 4 (that is, the reciprocal of 0.25)

The x-intercept is 2.8; the y-intercept is 0.7.

Answer:

a concave lens is exactly the opppostie with outer surfaces  curving inward, so it makes parallel light rays curve outward or diverge. That's why concave lenses are sometimes called diverging lenses. ... The distance from the center of the lens to the focal point is, again, the focal length of the lens.

Step-by-step explanation:

Answer:

The answer is below

Step-by-step explanation:

a) The number of pupils who scored more than 7 in a test = pupils who shored  8 + pupils who shored 9 + pupils who shored 10

The number of pupils who scored more than 7 in a test = 7 + 3 + 1 = 11 pupils

b) Total number of pupils = pupils who shored  0 + pupils who shored 1 + pupils who shored 2 + . . . + pupils who shored 9 + pupils who shored 10

Total number of pupils = 0 + 1 + 4 + 0 + 0 + 8 + 0 + 2 + 7 + 3 + 1 = 26 pupils

c) It is assumed that nobody scored either 0 or 3 or 4 or 6. Also the highest mark was assumed to be 10

Answer:

Step-by-step explanation:

Answer: 35

Step-by-step explanation:

You would set up the equation

25/x=20/28 cross multiply 25•28 and then divide by 20

Step-by-step explanation:

25/x = 20/28

20x = (25)(28)

x = (25)(28) ÷ 20

Answer:

[tex]\frac{1}{2}[/tex] or 50%

Step-by-step explanation:

Cube has 6 sides = 3 odds and 3 even

probability is found using

[tex]\frac{number of favourable outcomes}{number of total outcome}[/tex] which is [tex]\frac{3}{6} or \frac{1}{2}[/tex]

1/2 = 50%

Answer:

3/4

Step-by-step explanation:

Total number of cases = 8  [1,2,4,2,5,3,1,2]

No. of number less than 4 = 6 [1,2,2,3,1,2]

Probability = 6/8 = 3/4

Answer: 75%

Step-by-step explanation:

Well there are 8 possibilities every time you spin. The chance is 6/8 that you land on a number less than 4, if you spin it once (since 6 out of the 8 possibilities are less than 4). So you just have to divide 6/8 which is 0.75. Multiply by 100 (move the decimal over 2 times to the right) to get the percentage which is 75%.

Answer:

0.85

Step-by-step explanation:

you add them... duh