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Black_prince [1.1K]
3 years ago
9

Write an equation to represent each situation. Then solve the equation.

Mathematics
2 answers:
algol133 years ago
7 0
189=10x+99
x=amount of weeks
x=9 weeks
weeeeeb [17]3 years ago
5 0
It would take christian 9 weeks to save the rest of the money.

189-99 =90 (take away the money he has saved already from the goal to see how much money he needs.

90 ÷ 10 = 9
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First to answer will mark brainliest and give thumbs up, thank you
Bezzdna [24]

<u>The x and y coordinates of the origin is equal to (0, 0), which is the point of intersection of the x-axis and y-axis. The x and y coordinates of a point on the x-axis is of the form (a, 0), and here the y coordinate of the point is equal to zero.</u>

3 0
2 years ago
For what value of x does m 1=90°?
HACTEHA [7]

Answer:

x=70

Step-by-step explanation:

Angle 1 will be 90° when it subtends a 180° arc. That means the sum of 100° and (x+10) must be 180°, so (x+10) = 80°.

We assume this is intended to mean ...

... (x +10)° = 80° . . . . . note the ° symbol added outside parentheses

... x +10 = 80 . . . . . divide by °

... x = 70 . . . . . . . . .subtract 10

_____

If the intent is (x+10°) = 80°, then x=70°.

_____

<em>Comment on the numbers here</em>

Units need to be properly specified in problems of this nature. <em>As written</em>, we probably should assume that 10 is <em>radians</em>, and x is a large negative number, about -8.60374 (radians), or -492.958°.

A number of radians is a "pure number." It has <em>no units</em>. The term "radians" is used to signify that the number is considered to be an angle measure.

3 0
3 years ago
What are the zeros of the function y = x2 + 10x – 171, and why?
aleksandr82 [10.1K]
Y = x^2 + 10x - 171
y = (x - 9)(x + 19)

x - 9= 0 x + 19 = 0
x = 9 x = -19

Answer B covers all requirements... the factored form is
<span>y= (x + 19)(x - 9) </span>
<span>and the zeros are -19 and 9</span>
4 0
3 years ago
Read 2 more answers
Find the value of n in this equation.
lisabon 2012 [21]

Answer:

  • D. 9

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

<h2>Given </h2>

Triangle with:

  • Base of n² -3,
  • Midsegment of 39.

<h2>To find</h2>

  • The value of n.

<h2>Solution</h2>

As per definition of midsegment, it is connecting the midpoints of two sides and its length is half the length of the opposite side of the triangle.

So we have:

  • (n² - 3)/2 = 39

Solve it for n:

  • n² - 3 = 78
  • n² = 81
  • n = √81
  • n = 9

Correct choice is D.

3 0
1 year ago
What is 200 is blank times as much as 2
Lemur [1.5K]
100 is the answer (100x 2 = 200)
6 0
3 years ago
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