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vladimir1956 [14]
2 years ago
15

Ill mark brainlyist!!!!

Mathematics
1 answer:
kumpel [21]2 years ago
7 0

Answer: 30%

Step-by-step explanation:

   First, we will put completed over the total.

\frac{12}{40}

   Now, we will divide.

0.3

   Lastly, we will multiply by 100 to turn it into a percent.

0.3 * 100 = 30%

         You have ridden 30% of the course.

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The sum of two integers is (-32). Their quotient is 7. What are the integers?
Aneli [31]
<h3>Answer:  -28 and -4</h3>

===========================================================

Explanation:

Let x and y be the two integers such that |x| > |y|. This is another way of saying that x is further away from 0 compared to y.

Their quotient being 7 means x/y = 7 which rearranges to x = 7y

The sum of the integers is -32 which allows us to say....

x+y = -32

7y+y = -32

8y = -32

y = -32/8

y = -4

Use this y value to find x

x = 7y

x = 7*(-4)

x = -28

The two integers are -28 and -4.

8 0
3 years ago
you can work no more than 30 hours each week at your two jobs. Housecleaning pays $12 per hour and your sales job pays $18 per h
Bogdan [553]

Answer

use π

in your answer

8 0
3 years ago
Please solve with steps.
Kitty [74]

Answer: a) h = 2

              b) a = -\dfrac{3}{4}     k = \bold{3\dfrac{1}{2}}

<u>Step-by-step explanation:</u>

The vertex form of a quadratic equation is: y = a(x - h)² + k     where

  • a is the vertical stretch
  • (h, k) is the vertex

The graph shows the axis of symmetry at x = 2, therefore, the x-coordinate of the vertex (h) is 2.

Two points are given: \bigg(0, \dfrac{1}{2}\bigg)\ and\ \bigg(3, 2 \dfrac{3}{4}\bigg) . We can use these points to create two equations and then solve the system to find the a and k-values.

y = a(x - 2)² + k

\bigg(0, \dfrac{1}{2}\bigg)\\\rightarrow \dfrac{1}{2}=a(0-2)^2+k\\\\\rightarrow \dfrac{1}{2}=4a+k\\\\\rightarrow \dfrac{1}{2}-4a=k\\\\\\\bigg(3, 2\dfrac{3}{4}\bigg)\\\rightarrow 2\dfrac{3}{4}=a(3-2)^2+k\\\\\rightarrow 2\dfrac{3}{4}=a+k\\\\\rightarrow 2\dfrac{3}{4}-a=k\\\\\\\\\dfrac{1}{2}-4a=2\dfrac{3}{4}-a\\\\\dfrac{1}{2}-2\dfrac{3}{4}=4a-a\\\\\dfrac{2}{4}-\dfrac{11}{4}=3a\\\\-\dfrac{9}{4}=3a\\\\-\dfrac{9}{4\cdot 3}=\dfrac{3a}{3}\\\\ \bold{-\dfrac{3}{4}=a}

Solve for k:

2\dfrac{3}{4}-a=k\\\\\\2\dfrac{3}{4}-\bigg(-\dfrac{3}{4}\bigg)=k\\\\\\\bold{3\dfrac{1}{2}=k}

5 0
3 years ago
How do you now if 94 is a prime number
Troyanec [42]
94 is not a prime number. Because you have a "4" at the end of 94 that means that it is divisible by 2. 2 x 47 is 94. Because it has factors more than one and itself, it has to be a composite number
7 0
3 years ago
Read 2 more answers
Meg has a can that contains 80% of orange juice and the rest water. The can has 1 liter of water.
ladessa [460]
Let O be the amount of orange juice and W be the amount of water.

A)
O = 0.8W

B)
W = 1, so:
O = 0.8(1)
O = 0.8 Liters
7 0
4 years ago
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