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aalyn [17]
2 years ago
10

Helpp! Show work please, thank you :) Brainliest 30 points

Mathematics
1 answer:
yarga [219]2 years ago
7 0

Answer:

x² - 3x - 40 = 0

Step-by-step explanation:

(x - (-5))(x - 8) = 0

(x + 5)(x - 8) = 0

x² + 5x - 8x - 40 = 0

x² - 3x - 40 = 0

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5. Barkly Doghouses increased their prices by 10%. Complete the chart below to show their new prices.​
Sholpan [36]

Answer:

where is the chart?

Step-by-step explanation:

8 0
3 years ago
Charlene wants to earn at least $600 this month in commission. What is the minimum amount she needs to sell to earn $600 if she
nika2105 [10]

Answer:

She will need to earn a little more than $1333 that week.

Step-by-step explanation:

600/0.45 = 1333.333(repeating) rounded to nearest dollar is 1333

Check by doing 1333 x 0.45 (comes out to be 599.85)

3 0
3 years ago
What is the value of x in the equation 3x - 4 (2x - 5) = 15
Zepler [3.9K]

Hey there! I'm happy to help!

Here is our equation

3x - 4 (2x - 5) = 15

First, we will sue the distributive property to remove the parentheses. The term outside the parentheses is -4, so that is what we multiply the insides by.

3x-8x+20=15

We combine our like terms (our x-values).

-5x+20=15

We subtract 20 from both sides.

-5x=-5

We divide both sides by -5.

x=1

Have a wonderful day and keep on learning! :D

3 0
3 years ago
Read 2 more answers
Heidi has x donations for the bake sale. Grandpa Case has 2 fewer donations than Heidi. If there are 7 donations in all, which e
xxTIMURxx [149]

x+(x-2)=7 cab be used to determine the value of x.

Step-by-step explanation:

Given,

Heidi has x donations.

Grandpa Case has 2 fewer donations than Heidi.

Fewer means subtraction.

Grandpa has = x - 2

They have 7 donations in all.

Heidi's donations + Grandpa's donations = Total donations

x+(x-2)=7

x+(x-2)=7 cab be used to determine the value of x.

Keywords: equation, variable

Learn more about variables at:

  • brainly.com/question/1616605
  • brainly.com/question/1617787

#LearnwithBrainly

5 0
3 years ago
Find the slope and y-intercept<br><br> a. y = -5x + 3<br> b. y = 1/ 4x - 6<br> c. y=+5
Liula [17]

Answer:

a. Slope= -5 y-intercept = 3

b. Slope = 1/4 y-intercept=-6

c.Slope=0 y-intercept =5

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
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