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mixer [17]
3 years ago
15

PLS HELP ME ASAP ON 12 (SHOW WORK!) + LOTS OF POINTS!!

Mathematics
1 answer:
Rom4ik [11]3 years ago
6 0
The first thing you do is cross multiply which is 3/4x=48 (3/4 = 0.75). Therfore you divide each side by .75. The left side cancels out. For the right side you divide 48 by .75 and gives you 64. x=64
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Evaluate each expression if a= 12, b =9, c= -4 (a2/4b)+c
Contact [7]
Here it issssss #studywell

4 0
3 years ago
Does someone know how to do this? Pls I will give u brainliest if u do it
Papessa [141]

Answer: LP=15

Step-by-step explanation:

Ok triangle ΔNPL is congruent to ΔNML because they share side LN so side LN = LN

Angle LNP and LNM are right angles so they are congruent.

Sides PN and MN are marked congruent.

With that information we can use SAS to say those triangles are congruent.

This means that side LP=LM

so 10x-5=7x+1

Now we solve

10x-5=7x+1\\10x-5+5=7x+1+5\\10x=7x+6\\10x-7x=7x-7x+6\\3x=6\\\frac{3x}{3} =\frac{6}{3} \\x=2

Now we can sub in x to solve LP

10(2)-5

20-5

15

3 0
3 years ago
Need help quickly (:
FromTheMoon [43]
30-(increase/0.5)*2=sold
i*s=revenue
i*30-(i^2/0.5)*2=r
I=7.5=>r=0
i=7=>r=14
7/0.5=15 number of increases in the cost
7 0
4 years ago
Read 2 more answers
Solve for x<br> X^2+6x+9=20
Masja [62]

Answer:

x = 1.47  or x = -7.47

Step-by-step explanation:

x²+6x+9=20

This is a quadratic equation

x²+6x+9-20=0

x²+6x-11=0

Step 1 : Write the quadratic formula

x = <u>-b±√b²-4(a)(c)</u>

              2a

Step 2 : Substitute values in the formula

a = 1

b = 6

c = -11

x = <u>-6±√6²-4(1)(-11)</u>

              2(1)

x = <u>-6±√80</u>

          2

x = -3 + 2√5 or x = -3 - 2√5

x = 1.47         or x = -7.47

!!

4 0
3 years ago
Read 2 more answers
Please someone answer this from me I’m so stressed
Natalija [7]
Search it up on google put the title :)
3 0
3 years ago
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