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Elza [17]
3 years ago
14

I don't understand this pls help!!

Mathematics
1 answer:
Juli2301 [7.4K]3 years ago
6 0
15 is half of 30...right. so what is half of 6...Thats your answer. because in #10 y=5x. do a similar thing with number 12. accept with looking at t instead of x for your given value
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Write the equation of the line that passes through (3,-2) and has a slope of 4 in point-slope form.
monitta
Well first, we have to find the y intercept. So plug in your coordinates.
-2 = 4 (3) + b
Simplify
-2 = 12 + b
now, let's put like terms together.
-14 = b
b= -14
Hope I could help!
7 0
4 years ago
Read 2 more answers
the area of a rectangle is given by the trinomial 10ײ - 31x-14. The length of the rectangle is 5x+2. What is the expression for
oee [108]
10x^2 - 31x-14=10x^2+4x-35x-14=2x(5x+2)-7(5x+2)=\\\\=(5x+2)(2x-7)\\\\D:\ \ 5x+2>0\ \ \ and\ \ \ \ \ 2x-7>0\\.\ \ \ \ \ \ 5x>-2\ \ \ \ \ \ and\ \ \ \ \ 2x>7\\.\ \ \ \ \   \ \ x>-\frac{2}{5}\ \ \ \ \ \ and\ \ \ \ \ \ x>3 \frac{1}{2} \\\\D=(3 \frac{1}{2};\ +\infty)\\\\Ans.\ \ The\ width\ is\ \ \ \ 2x-7
7 0
3 years ago
Problem PageQuestion A theater group made appearances in two cities. The hotel charge before tax in the second city was $1500 lo
vagabundo [1.1K]

Answer:

the hotel charge in the first city is $5250 while the hotel charge in the second city is $3750

Step-by-step explanation:

Let a represent the charge in the first city before tax and b represent the charge in the second city before tax.

Therefore tax in first city = 10% of a = 0.1a

Tax in second city = 8% of b = 0.08b

From the total tax as $825, hence:

0.1a + 0.08b = 825           (1)

The hotel charge before tax in the second city was $1500 lower than in the first. This gives the equation:

b = a - 1500

a - b = 1500                    (2)

To find a and b, solve equation 1 and 2 simultaneously. Multiply equation 2 by 0.1 and subtract from equation 1:

0.18b = 675

b = $3750

a = b + 1500 = 3750 + 1500 = 5250

a = $5250

Therefore, the hotel charge in the first city is $5250 while the hotel charge in the second city is $3750

4 0
3 years ago
The length of a rectangle is twice the width. The area of the rectangle is 90 square unites
erastova [34]

a) Both the length and the width of the rectangle are square roots of integers.

b) The length and the width of the rectangle are 6√5 units and 3√5 units, respectively.

<h3>How to analyze irrational numbers</h3>

Irrational numbers are numbers that not rational, that is, numbers that not of the form m / n, where m and n are integers and n is different of zero. Rational numbers may be integers or not.

Now, the statement indicates that the length and the width of rectangle have measures of 2 · x and x, respectively, and that the area of the rectangle is equal to 90 square units. The area formula is presented below:

90 = (2 · x) · x

90 = 2 · x²

x² = 45

x = √45

x = √(9 × 5)

x = √9 × √5

x = 3√5

a) Both the length and the width of the rectangle are square roots of integers.

b) The length and the width of the rectangle are 6√5 units (approx. 13.416 units) and 3√5 units (approx. 6.708 units), respectively.

To learn more on irrational numbers: brainly.com/question/3386568

#SPJ1

6 0
2 years ago
What is the sum of 2/10 + 6/100
kogti [31]

Answer:

26/100 which is simplified to 13/50

Step-by-step explanation:

you have to get equal denominators so multiply 2/10 by 10 on top and bottom to get 20/100 then you can add 6/100 plus 20/100 which is 26/100 . denominators stay the same 26/100 can be simplified to 13/50

6 0
4 years ago
Read 2 more answers
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