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3 years ago

Need help Evaluate. 12+4⋅3−15

Mathematics

1 answer:

Yuliya22 [10]3 years ago

6 0

Step-by-step explanation:

12+4.3-15

16.3-15

1.3

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Please help See the picture Line A , B , C OR D ? Help

anygoal [31]

Answer:

B - Top Right

Step-by-step explanation:

3x + 6y = -57

-3x - 6y = 57

I hope this helps

3 0

3 years ago

Translate the sentence into an inequality.

BlackZzzverrR [31]

X+5 ≤ -17
Or if it’s y instead of x put that.
Hope this helps though

7 0

3 years ago

Beth bought 20 tickets to a movie, where adult tickets cost $8.00 and senior citizen tickets cost $4.00. She spent a total of $1

olchik [2.2K]

Answer:

The Total number of adults ticket's is 15

The Total number of Senior citizen ticket's is 5

Step-by-step explanation:

Given as :

The total number of movies tickets were bought = 20

The cost of adults tickets = $ 8.00

The cost of senior citizen tickets = $ 4.00

The total money spent on movie tickets = $ 140

Let The total number of adults tickets = A

And The total number of senior citizen tickets = S

Now, According to question

The total number of movies tickets were bought = 20

I.e The total number of adults tickets + The total number of senior citizen tickets = 20

Or, A + S = 20

And $ 8 A + $ 4 S = $ 140 .........1

I.e 8 × ( A + S ) = 8 × 20

Or, 8 A + 8 S = 160 .......2

Solving the equation 1 and 2

Or, ( 8 A + 8 S ) - ( 8 A + 4 S ) = 160 - 140

Or, ( 8 A - 8 A ) + ( 8 S - 4 S ) = 20

or, 0 + 4 S = 20

∴ S = $\frac{20}{4}$

I.e S = 5

So, The number of Senior citizen ticket's = 5

Put The value of S in eq 1

So, 8 A + 4 × 5 = 140

Or, 8 A = 140 - 20

Or, 8 A = 120

∴ A = $\frac{120}{8}$

I.e A = 15

So, The number of adult's tickets = 15

Hence The Total number of adults ticket's is 15

And The Total number of Senior citizen ticket's is 5 Answer

8 0

3 years ago

Working together, it takes two different sized hoses 30 minutes to fill a small swimming pool. If it takes 50 minutes for the la

Oduvanchick [21]

Answer:

75 minutes

Step-by-step explanation:

In this question, we are asked to calculate the time it will take a smaller hose out of two hoses to fill a swimming pool by itself.

Firstly, let’s say the volume of the swimming pool to fill is Xm^3.

Hence for both, the rate of filling is x/30 m^3/minutes. For the larger hose, rate will be x/50 m^3/minutes. For the larger hose, let the time taken be z minutes. It’s rate will be x/z m^3/minute.

Mathematically, adding both rates together give the rate of both at the same time. This means;

X/30 = x/50 + x/z

X/z = x/30 - c/50

x/z = 20/1500

x/z = 1/75

z = x/75

This means the time that it will take the smaller hose will be 75 minutes

7 0

4 years ago

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Given the function f(x) = 5x - 3(3x+7), Determine the value of x when f(x) =-18.

MAXImum [283]

Answer:

-93

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers