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s344n2d4d5 [400]
4 years ago
12

Solve for x show all your work. 10x + 15 = 5x - 10​

Mathematics
1 answer:
sdas [7]4 years ago
7 0

Answer:

x=-5

Step-by-step explanation:

10x + 15 = 5x-10

-5x            -5x

5x+15 = -10

    -15     -15

5x = -25

/5      /5

x = -5

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Jim has three times as many comic books as Charles Charles has two thirds as many as Bob Bob has 27 books how many comic books d
Lorico [155]

Charles has 2/3 of bob

 bob has 27

 so 2/3*27 = 27 *2 = 54/3 = 18

Charles has 18

Jim has 3 times as many as Charles so he has 3 x 18 = 54

 jim has 54 comic books

6 0
3 years ago
Solve for x: 15x2 = x+2 <br><br> x2 is x to the second power
galben [10]
Greeting!

15x² = x + 2
15x² - x -2= 0
Factor left side
(5x-2)(3x+1)=0
Set factors equal to 0
5x - 2 = 0 or 3x + 1 -0
x = 2/5 or x= -1/3

I hope that helps!

Brainlest answer :)
4 0
3 years ago
Annie puts $10 into a vacation jar each week. how much will she have saved by the end of the year?
schepotkina [342]
Solutions 

Annie puts $10 into a vacation jar each week and we need to find out <span>how much will she have saved by the end of the year. To solve the problem first we have to find out how many days there are in a year and convert them into weeks.  

Days in a year = 365

To find weeks divide by 7 since a week consists of 7 days.  

365 </span>÷ 7 = 52
<span>
1 year has 52 weeks 

our next step is to multiply 52 by 10. 

52 x 10 = 520 

By the end of the year she would have saved 520 dollars. </span><span />
7 0
4 years ago
The dot plot below shows the number of cakes 31 chefs made in a week: Dot plot labeled Number of Cakes Made shows 4 dots over 1,
Paraphin [41]
The median, because the data is not symmetric and there are outliers is the data is not symmetric and there are outliers.

The median of the data set is 8 cakes, while the average is 7.5.

However, 21 of the 31 chefs, or roughly 2/3, made 8 or more cakes. This makes the median a better center for this data, since the data is clearly skewed. The four chefs that made 1 cake each brings the average down, skewing the mean and making the median a better representation of the data. 
8 0
3 years ago
Read 2 more answers
I need help<br><br> Like asap
Tom [10]

Answer:

Step-by-step explanation:

cross multiply

-6 * 12 = 2 + z

-72 = z + 2

z = -2-72 = -74

7 0
4 years ago
Read 2 more answers
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