Ask question

Ask question

All categories

3 years ago

8

I need help finding length of x?

1 answer:

mixas84 [53]3 years ago

3 0

By looking at it we can decide that the side with 7 and the side with 4x are the same, so x would be 3 since 4+3=7.

You might be interested in

A computer online service charges one hourly rate for regular use but a higher hourly rate for designated "premium" areas. One c

N76 [4]

Answer: the service charge per hour for premium services is $5.5

the service charge per hour for regular services is $3

Step-by-step explanation:

Let x represent the service charge per hour for premium services.

Let y represent the service charge per hour for regular services.

One customer was charged $38 after spending 2 h in premium areas and 9 regular hours. It means that

2x + 9y = 38- - - - - - - - - - - 1

Another customer spent 3 h in premium areas and 6 regular hours and was charged $34.50. It means that

3x + 6y = 34.5- - - - - - - - - - -2

We would eliminate x by multiplying equation 1 by 3 and equation 2 by 2. It becomes

6x + 27y = 114

6x + 12y = 69

Subtracting, it becomes

15y = 45

y = 45/15

y = 3

Substituting y = 3 into equation 1, it becomes

2x + 9 × 3 = 38

2x + 27 = 38

2x = 38 - 27 = 11

x = 11/2 = 5.5

8 0

3 years ago

Juan ordered 20 pizzas for a party. 45% of the pizzas have 8 slices each. The remaining 55% of the pizzas have 12 slices each. C

Mama L [17]

Total number of pizzas Juan ordered $20$

Since, $45\%$ of pizzas have $8$ slices.

Therefore, number of pizzas with $8$ slices are: $45\%\times(20)$

$=\frac{45}{100} \times(20)$

$=\frac{45}{10} \times(2)$

$=\frac{90}{10}$

$=9$ pizzas

Also, since, $55\%$ of pizzas have $12$ slices.

Therefore, number of pizzas with $12$ slices are: $55\%\times(20)$

$=\frac{55}{100} \times(20)$

$=\frac{55}{10} \times(2)$

$=\frac{110}{10}$

$=11$ pizzas

Now, there are $9$ pizzas with $8$ slices and $11$ pizzas with $12$ slices.

Therefore, total number of slices of pizza are: $=(9)(8)+(11)(12)$

$=72+132$

$=204$ slices

5 0

3 years ago

What is the value of x in the equation below?<br><br> 1+2e^x+1=9

olga2289 [7]

I am sure the correct answer is x=0.38629436…hope this help you

8 0

3 years ago

Read 2 more answers

Please write an inequality for the graph above.

Aleonysh [2.5K]

$x\leq 0$

fill the dot for including equality

point to left for "smaller than"

6 0

3 years ago

As smart phones have grown in popularity, regular cell phones have fallen out of favor. As a result, one electronics retailer es

prohojiy [21]

Answer:

4,239,505

Step-by-step explanation:

847,901 x 5 = 4,239,505

3 0

2 years ago