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Elena L [17]
3 years ago
13

PLEASE HELP ME WITH THIS QUESTION

Mathematics
2 answers:
valentina_108 [34]3 years ago
4 0
Set 7x-4 and 31 equal to each other
7X-4=31
Add four to both sides
7X=27
X=3
The answer is D
GREYUIT [131]3 years ago
3 0

As per the problem we can see that

There two triangles with equal corresponding sides.

So we can set up the equation as below:

7x-4=31\\ \\ \text{Add 4 on both the sides we get}\\ \\ 7x-4+4=31+4\\ \\ 7x=35\\ \\ \text{Divide both the sides by 7  we get}\\ \\ x=5\\

Hence the value of x is 5.

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.Shaun estimated that the attendance at a college
Serggg [28]

Answer:

38.72%

Step-by-step explanation:

Estimated attendance = 1,000

The actual value of attendance = 1,632

We need to find the percent error of Shaun's estimate. Using the formula as follows :

\%=\dfrac{|\text{actual value-estimated value}|}{\text{actual value}}\times 100

Put all the values,

\%=\dfrac{1632-1000}{1632}\times 100\\\\=38.72\%

So, the percent error of Shaun's estimate is 38.72%.

8 0
3 years ago
Which equation can be used to solve for in the following diagram?
g100num [7]

Answer:

Choice C should be the answer

Step-by-step explanation:

Because all of them adds up to 180 since it is a straight angle.

6 0
3 years ago
Use the function below to find f(4). F(x) = 3x
Sonja [21]
Since F(X) = 3^X,

F(4) = 3^4 = 81
5 0
3 years ago
Read 2 more answers
I need help on 15 please
Nikolay [14]
The ratio 12:20 because you need it to be equal to 3:5. 3 times 4 which makes 12 so you need to multiply 5 with 4 too
4 0
3 years ago
Please help
Varvara68 [4.7K]

Answer:

$6 = cost of small box

$8 = cost of large box

Step-by-step explanation:

Let s = cost of small box

     l  = cost of large box

(1)    12s + 3l = 96            (2)     6s + 6l = 84

    Multiply by -2                    <u> -24s - 6l = -192</u>

                                                -18s   = - 108

                                                     s = $6 = cost of small box

      12(6) + 3l = 96

         72 + 3l = 96

                 3l = 24

                   l = $8 = cost of large box

7 0
2 years ago
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