Hello,
Let's assume a the age of Bea
b the age of her sister
This year: a+b=18
Next year (a+1)+(b+1)=(a+b)+(1+1)=(a+b)+2=18+2=20
Answer:
A 3 goes in the parentheses. The expression evaluates to 59.
Step-by-step explanation:
b = 3
2b^3 + 5 =
= 2(3)^3 + 5
= 2 * (3 * 3 * 3) + 5
= 2 * 27 + 5
= 54 + 5
= 59
Counting in 19s: 19,38,57,76,95,104,123,132,151...
Counting in 7s: 7,14,21,28,35,42,49,56,63,70,77...
Answer:
12
Step-by-step explanation:
335 + 13.75x = 500
Subtract 335 from each side
13.75x = 165
Divide each side by 13.75
x = 12
You can attend 12 dance classes with $500.
Answer:
3x−2y=12
Solve for y
.
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Subtract 3x
from both sides of the equation.
−2y=12−3x
Divide each term by −2
and simplify.
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y=−6+3x2
Rewrite in slope-intercept form.
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The slope-intercept form is y=mx+b
, where m is the slope and b
is the y-intercept.
y=mx+b
Reorder −6
and 3x2
.
y=3x2−6
Rewrite in slope-intercept form.
y=32x−6
Use the slope-intercept form to find the slope and y-intercept.
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Find the values of m
and b using the form y=mx+b
.
m=32
b=−6
The slope of the line is the value of m
, and the y-intercept is the value of b
.
Slope: 32
Y-Intercept: −6
Any line can be graphed using two points. Select two x
values, and plug them into the equation to find the corresponding y
values.
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Choose 0
to substitute in for x
to find the ordered pair.
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(0,−6)
Choose 1
to substitute in for x
to find the ordered pair.
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(1,−92)
Create a table of the x
and y
values.
xy0−61−92
Graph the line using the slope and the y-intercept, or the points.
Slope: 32
Y-Intercept: −6
xy0−61−92
