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Mathematics

2 answers:

Alex3 years ago

5 0

The coordinates of A are (-1.5,2.5)

kakasveta [241]3 years ago

4 0

(-1.5,2.5) is the point where A is on the coordinate plane.

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Use the correct order of operations to solve the problem below. 19 - (4 + 2) - 15 ÷ 3

Anna71 [15]

Parenthesis first

19- (4+2) - 15 / 3

19-(6)-15 / 3

then division

19-6-5

then subtraction from left to right.

19-6= 13
13-5= 8

your final answer is 8

8 0

3 years ago

Read 2 more answers

Whats an equation for (0,75) (7,40) in slope intercept form

Molodets [167]

The slope-intercept form: y = mx + b.

m - slope, b - y-intercept

$m=\dfrac{y_2-y_1}{x_2-x_1}$

We have the points (0, 75) → y-intercept (b = 75), and (7, 40).

Substitute the coordimates of the points to the formula of a slope:

$m=\dfrac{40-75}{7-0}=\dfrac{-35}{7}=-5$

<h3>Answer: y = -5x + 75.</h3>

8 0

3 years ago

1-116 1.2.6

ankoles [38]

Answer:

A. 30 adults; B. 24 not dolls

Step-by-step explanation:

$\begin{array}{rcl}\text{No. of adults} & = & \text{No. of visitors} \times \text{Fraction who are adults}\\& = & \text{100 visitors} \times \dfrac{\text{3 adults}}{\text{10 visitors}} \\& = & \textbf{30 adults}\\\end{array}$

If five-eighths of the prizes were dolls, then three-eighths of the prizes were not dolls.

$\begin{array}{rcl}\text{No. not dolls} & = & \text{No. of prizes} \times \text{Fraction not dolls}\\& = & \text{64 prizes} \times \dfrac{\text{3 not dolls}}{\text{8 prizes}} \\& = & \textbf{24 not dolls}\\\end{array}$