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3 years ago

Please help me asap!!!!! 4x^{2} -144

Mathematics

1 answer:

Westkost [7]3 years ago

7 0

Answer:

x=6

Step-by-step explanation:

First you square root the whole problem to get

2x-12=0

then you add 12 to both sides

2x=12

then you divide both sides by two to get

x=6

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The function y=5x+10 represents the total cost y of a group of x members to go paintballing.

never [62]

Answer:

The independent variable (x) represents the members to go paintballing.

The dependent variable (y) represents the total cost.

Step-by-step explanation:

The y is always dependent on the x. The number of people attending affects the total cost of the trip. The more people attend, the more it costs.

3 0

2 years ago

You charge customers $18.75 for lube service, parts, and labor. Assuming you take one hour's labor at $15, and the parts cost $3

hram777 [196]

Let
T---------> <span>the tax rate on the parts in $

we know that
$18.75=$15+$3.50+$T
T=18.75-15-3.5
T=$0.25
so
$3.50----------> 100%
$0.25--------> x
x=0.25*100/3.50------> x=7.14%------> x=7.1%

the answer is
7.1%</span>

5 0

2 years ago

A survey showed that 35% of the students prefer plain white milk over chocolate milk. If the school has 1200 students. How many

vodomira [7]

Answer:

The number of students who prefer chocolate milk is 780 .

Step-by-step explanation:

Given as :

The total number of students in the school = 1200

The percentage of students who prefer plain white milk = 35 %

Let the number of students who prefer chocolate milk = x

Now, ∵ The percentage of students who prefer plain white milk = 35 %

∴ The percentage of students who prefer chocolate milk = 100 % - 35 % = 65%

So , As The number of students who prefer chocolate milk = x

Or, 65 % of total number of students in school = x

So, x = $\frac{65}{100}$ × 1200

or, x = $\frac{65\times 1200 }{100}$

∴ x = 780

So, the number of students who prefer chocolate milk = x = 780

And students who prefer plain white milk = 1200 - x = 1200 - 780 = 420

Hence, The number of students who prefer chocolate milk is 780 . Answer

4 0

3 years ago

Ms. Leong owned an ice cream store and had chocolate ice cream and vanilla ice cream for sale. She sold ¾ of the chocolate ice c

Katarina [22]

answer:

140 scoops

explanation:

3/4 of 80 is 20 and 1/2 of 60 is 30. when you add 80 and 60 you get 140

8 0

2 years ago

Read 2 more answers

1.Bobby walked 5 miles and then 1/2 the distance. What is his total distance?

gtnhenbr [62]

Answer:

7.5 miles

Step-by-step explanation:

Half of 5 equals 2.5. Bobby already walked 5 miles so you add the 2.5 since he walked another half of that distance. 5 + 2.5 = 7.5

6 0

3 years ago