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Naily [24]
3 years ago
8

4. 15% of what number is 30?

Mathematics
1 answer:
sergeinik [125]3 years ago
5 0
I won’t answer because this is probably on your homework idk
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Find the slope and y- intercept of points (-2,3) and (2,-3)
iren [92.7K]

Answer:

slope = -3/2

y intercept = (0,0)

equation, y = -3/2x+0

Step-by-step explanation:

y2-y1/x2-x1 = -3-3/2--2 = -6/4 = slope = -3/2

y intercept = (0,0)

5 0
2 years ago
Jake has decided to invest in three business ventures. The total cost of investing in all three ventures is $15,000. The combine
Arte-miy333 [17]
X = first venture, y = second venture, z = third venture

x + y + z = 15,000
x + z = y + 7000
3x + 2y + 2z = 39,000
these are ur equations.....

x + y + z = 15,000
x - y + z = 7000
--------------------add
2x + 2z = 22,000

x + y + z = 15,000....multiply by -2
3x + 2y + 2z = 39,000
-------------------
-2x - 2y - 2z = - 30,000 (result of multiplying by -2)
3x + 2y + 2z = 39,000
------------------add
x = 9,000

2x + 2z = 22,000
2(9000) + 2z = 22000
18,000 + 2z = 22000
2z = 22000 - 18000
2z = 4000
z = 4000/2
z = 2,000

x + y + z = 15,000
9000 + y + 2000 = 15,000
11,000 + y = 15,000
y = 15,000 - 11,000
y = 4,000

first venture (x) = 9,000 <==
second venture (y) = 4,000 <==
third venture (z) = 2,000 <==
7 0
3 years ago
Read 2 more answers
What is similar multiplying fractions and whole numbers and what is different?
melomori [17]
You multiply straight across, and one number is  a fraction and the other is not.
3 0
3 years ago
Matthew is using a microscope in science class. The microscope magnified the specimen 4x10^2 . If the specimen is 3cm long how l
choli [55]

Answer:

  12 meters

Step-by-step explanation:

The apparent size is ...

  (4·10^2)·(3 cm) = 12·10^2 cm = 12 m

___

1 m = 10^2 cm

5 0
3 years ago
Rewrite without parenthesis and simplify (y+6)^2
GarryVolchara [31]
Y^2+36, because you square y and 6
4 0
3 years ago
Read 2 more answers
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